All vendors are to accept the information contained herein as the official response of IPTC.

Transcription

1 Page 1 of 82 February 20, 2018 To: All Vendors of Record Re: Addendum # 3 All vendors are to accept the information contained herein as the official response of IPTC. TO ALL BIDDERS OF RECORD AND TO WHOM IT MAY CONCERN: This Addendum is being issued prior to the due date for receiving proposals. This Addendum forms a part of the Contract Documents and modifies the original Request for Proposal (RFP) as noted below and shall be incorporated into the Contract Documents. All other provisions of the RFP released October 16, 2017 with the exception of changes below, shall remain unchanged. This Addendum is issued in accordance with the provisions of Section 3 of the Request for Proposal document. All Proposals shall be based upon work as modified by this Addendum. Acknowledged receipt of this Addendum on the Acknowledgement of Addendum Form is required. Failure to do so may result in disqualification of the Bidder. This addendum addresses (RFA) Request for Alterations presented by bidders before the deadline to the submission of proposals for RFP Forty-Foot (40 ) Electric Buses.

2 Page 2 of 82 1) Addendum 1, Item 12 IPTC Specification: all charging will be completed at the headquarters. On-route charging will be for future and will be inductive. Please clarify how the on-route charging for future will be handled. Are Proponents required to provide pricing for on-route chargers or will buses with future onroute charging be purchased via a separate procurement. Additionally, do buses proposed in this procurement have to be capable of on-route charging upon delivery or will IPTC accept a base bus that could be modified to allow on-route charging at a later date? IPTC Response: If on route, the only chargers will be inductive. IPTC will accept a base bus that could be modified at a future date. 2) Addendum 1, Item 13 IPTC Specification: the pilot bus will be evaluated 8 weeks prior to receiving other units. The pilot must have all equipment installed. The timing will be in May Regular production will be for delivery in June/July. Due to the anticipated schedule for contract award in second quarter 2018, should those dates be in 2019 rather than 2018? IPTC Response: Yes, but a pilot bus should be in early 2019 with the delivery of the other in 2 nd or 3 rd quarter. The final delivery will be discussed with the winning bidder and all dates are approximate. 3) Section 1.1 Overview of this Procurement, Page 5 Specification wording of IPTC anticipates entering a contract agreement with one or multiple vendors in the first quarter of 2018 with a term of no less than five (5) years with the possibility of split orders with awarded vendors. Regarding the possibility of IPTC splitting the initial order (up to 16) with multiple vendors, can IPTC provide a minimum that you would expect to order from any specific vendor? Note: This was previously submitted but the response provided in Addendum #1 was incomplete. IPTC Response: A minimum of 8 per vendor if two vendors or chosen. 4) Section Evaluation Criteria, Page 7

3 Page 3 of 82 Cost Proposal The Cost Proposal criteria will be based on the total price of the Low-Floor Bus and charger as defined in section 1.2 Technical Specifications. Please clarify how Cost Proposals will be evaluated. Is it base + options or just base? If options are included, how will the 100 buses be considered over the 5-year period, i.e. 25 in 2020, 25 in 2021, etc.? IPTC Response: Cost should be on a 3-year contract with 2 option years. The wining vendor(s) will discuss future deliveries. 5) Attachment A: Technical Specifications, 2 Technical Understanding, Page 37 IPTC Specification: Proposer shall submit representative samples of all Maintenance, Parts, and related Service Manuals that cover the buses offered in the proposal. Examples of Service and Part update bulletins, electrical diagrams and Bus Operator s manuals will also be submitted. Request approval to submit excerpts of the listed manuals as representative samples, rather than complete manuals. but winning bidder(s) will have to comply with full manuals. 6) Section 7.2 Coaches Removed from Service Due to Warranty Failure, Page 41 IPTC Specification: Coaches which have been removed from service due to a warranty failure for periods exceeding seven (7) days shall have the warranty time extended for the time the coach was not in service. Proterra respectfully requests that this section be reworded as follows: Coaches which have been removed from service due to a warranty failure for periods exceeding seven (7) days or according to the schedule mutually agreed upon shall have the warranty time extended for the time the coach was not in service. 7) Section 7.6 Detection and Correction of Defects, Pages IPTC Specification: Where Contractor performs repair work necessary to affect the repair all work shall commence within seven (7) working days after the Contractor receives notification. If IPTC does not agree with the Contractor s suggestion as the scope and/or course of the repairs, IPTC reserves the right to commence with the repairs and submit for reimbursement.

4 Page 4 of 82 Proterra respectfully requests that this section be reworded as follows: Where Contractor performs repair work necessary to affect the repair all work shall commence within seven (7) working days or according to the schedule mutually agreed upon after the Contractor receives notification. If IPTC does not agree with the Contractor s suggestion as the scope and/or course of the repairs, IPTC reserves the right to commence with the repairs and submit for reimbursement. 8) Section 7.11 Repair by Contractor, Page 42 IPTC Specification: If IPTC requires or mutually agrees for the Contractor to perform warrantycovered repairs, the contractor s representative must begin work within 24 hours after receiving notification of a defect from IPTC. IPTC shall make the bus available to the Contractor s Representative to complete timely repairs. Proterra respectfully requests that this section be reworded as follows: If IPTC requires or mutually agrees for the Contractor to perform warranty-covered repairs, the contractor s representative must begin work within 24 hours after receiving notification of a defect from IPTC or according to the schedule mutually agreed. IPTC shall make the bus available to the Contractor s Representative to complete timely repairs. 9) Section 7.11 Repair by Contractor, Page 42 IPTC Specification: Any warranty work performed under this Contract shall be completed within seven (7) calendar days after the Contractor has begun repairs on the coach that has been removed from revenue service due to a warranty defect. Proterra respectfully requests that this section be reworded as follows: Any warranty work performed under this Contract shall be completed within seven (7) calendar days after the Contractor has begun repairs on the coach that has been removed from revenue service due to a warranty defect, or according to the schedule mutually agreed.

5 Page 5 of 82 10) Section 9.1 Corrosion, Page 42 IPTC Specification: Representative samples shall withstand a hour salt spray test in accordance with ASTM procedure B-117 with no visual or structural detrimental effects to normally visible surfaces, and any significant structural degradation or weight loss over 1 percent for other members or components. Request approval of Proterra s Catalyst electric buses, which are constructed with an extremely durable and corrosion resistant, life-extending composite body. The metallic structural components under the bus body (ProDrive, Axles) are first electrocoated (e-coated), then powdercoated to ensure maximum corrosion protection to meet the 1,000+hour ASTM B117 requirement with no red rust or weight loss. This provides a superior corrosion protection when compared to zinc chromate or zinc phosphate prime paints. Proterra bus is made of a monocoque composite body and we make an effort to use similar materials on our design. Similar materials are not always feasible throughout the bus. 11) Attachment A: Technical Specifications, 9.2 Water Test, Page 45 Each nozzle that delivers water must eject a total volume of water not less than eight gallons per minute at a pressure not less than forty pounds per square inch measured at point of impact. The nozzle tip will deliver a narrow 20-degree pattern that does not overlap. The nozzle will be located no more than 12 inches from the surface of the coach. The test will be conducted so that each area of the coach is subject to water spray for a minimum of fifteen (15) minutes. Proterra respectfully requests approval of our standard water test procedures as described in Exhibit B attached herewith. Exhibit B Standardized Water 12) Attachment A: Technical Specifications, 9.5 Material Quality, Page 46 IPTC Specification: The electrical connections exposed to water, salt, brine, or any other corrosive material exposed to water or air must be encapsulated or protected. This includes the use of dissimilar metals so materials will be isolated from one another preventing pre-mature corrosion.

6 Page 6 of 82 Proterra requests approval of our standard design, which is to utilize sealed electrical connections in areas exposed to water, salt, and brine. For ground and other large bolted connections, we will add a dielectric grease. Battery terminals are covered with a non-sealed plastic cap and we typically do not install grease on the battery posts. 13) Attachment A: Technical Specifications, 9.6 Towing, Page 46 IPTC Specification: Towing devices shall be provided on each end of the bus; towing devices should accommodate flat bedding or flat towing. Proterra requests approval of our Catalyst electric buses, which allow for rear towing only for the purposes of recovery until access to the front of the bus is possible. 14) Attachment A: Technical Specifications, 9.7 Jacking, Page 46 IPTC Specification: It shall be possible to safely jack up the bus, at curb weight, with a common 10-inch high hand jack, a 10-ton floor jack, or an inflatable air bag type jack at the discretion of IPTC when a tire or dual set is completely flat and the bus is on a level, hard surface, without crawling under any portion of the bus. Proterra wishes to clarify that a common 10-inch high hand jack would not work due to ground clearance. However, a 10-ton floor jack would work. Would this satisfy your requirement? 15) Attachment A: Technical Specifications, 11.1 Floor Height, Page 47 IPTC Specification: Height of the floor above the street shall be 15 inches +/ inches, measured at the centerline of each door. Proterra requests approval of our Catalyst electric buses. The floor height above the ground of the Catalyst electric transit buses, measured at the centerline of the doorway is 16 at the front door and 17 at the rear door. One of the major benefits of the Proterra Catalyst vehicle is the placement of the battery packs under the floor and between the wheels. Having the batteries located in this location allows for the following benefits: Lower center of gravity, better handling

7 Page 7 of 82 Increased safety No HV batteries inside the passenger compartment Batteries are lower than the side impact height for automobiles However, as a result, the step height and floor height are slightly taller than average vehicles at nominal ride height. The buses are still capable of full kneel functionality. 16) Attachment A: Technical Specifications, 11.2 Floor Strength, Page 48 IPTC Specification: At GVW, the floor will have an elastic deflection of no more than 0.06-inch from the normal plane. Proterra requests approval of the APTA Standard Bus Procurement Guidelines language as follows: At GVWR, the floor shall have an elastic deflection of no more than 0.60 in. from the normal plane 17) Attachment A: Technical Specifications, 11.3 Floor Edges, Page 48 IPTC Specification: The floor shall be essentially a continuous flat plane. The floor will run up the sidewall for minimum of 3. All edges must be sealed as a waterproof protection. Proterra requests approval of our floor design, which stops at the wall. All edges are sealed with calking on the joint from floor to wall and are water resistant. 18) Attachment A: Technical Specifications, 11.4 Floor Protection, Page 48 IPTC Specification: Flooring is to be a continuous run material with one or less joints. Please clarify this requirement. Due to the nature of the flooring material, there is no way to accomplish this with one continuous piece. Is a weld considered to be a joint? IPTC Response: this is referring to rubber flooring which is a continuous run until the rear step up. 19) Attachment A: Technical Specifications, 13.1 Wheel Housing Construction, Page 49

8 Page 8 of 82 IPTC Specification: Wheel housings shall be constructed of corrosion-resistant, fire resistant 14 gauge 304-type stainless steel. Proterra requests approval of our 40 Catalyst, which is manufactured using a composite monocoque body structure, including the wheel housings. 20) Attachment A: Technical Specifications, 14.2 Exterior, Page 50 IPTC Specification: The rear compartment door will have another access door incorporated into it for battery charging plug in access. Request approval of our standard design with the charging plug access on the rear curb-side of the bus. 21) Attachment A: Technical Specifications, 14.2 Exterior, Page 50 IPTC Specification: Doors with top hinges shall have safety props stored behind the door or on the doorframe. Request approval of our standard design, which incorporates gas shocks which hold the doors open without the need for safety props. 22) Attachment A: Technical Specifications, 14.2 Exterior, Page 50 IPTC Specification: A counterbalance or spring system should operate large doors but, if not practicable, a powered-assist device may be used, provided it is equipped with an emergency system to open the doors manually in less than 30 seconds. Request approval of our standard door design, which do not include a counterbalance system but are easily operated by one person. 23) Attachment A: Technical Specifications, 15.1 Door Placement, Page 50 IPTC Specification: The vehicle shall have 2 passenger doors, each no less than 40 inches in width.

9 Page 9 of 82 Request approval of clear door width s as follows: Front Door: 32.2 Rear Door: ) Attachment A: Technical Specifications, 15.2 Door Mechanism, Page 50 IPTC Specification: The front door shall be operated by a single pneumatic differential type operator, having integral controls for the adjustment of door closing speed, cushioning upon door opening to prevent slamming, and door closing speed, a CLASS series with proximity switches manufactured by Bode Corporation or approved equal. The front door shall be a slide-glide type. Request approval of our standard Ventura inward-swinging pneumatic doors, which have two pneumatic differential operators (one for each panel) as described in Exhibit C. Additionally, request approval of our CLASS equivalent infrared system and clarification whether this is required on both doors (front and rear) or just the rear door. Exhibit C Ventura Doors.pdf 25) Attachment A: Technical Specifications, 15.4 Operator s Door Control Devices, Page 51 IPTC Specification: The driver shall control the passenger doors through a five-position control device with a removable handle, as manufactured by Bode Corporation or approved equal. The control device shall incorporate a three-way mechanically operated pneumatic valve to operate the front entrance doors and a switch, the closure of which provides circuit completion, to enable, or open the doors. Request approval of door control via push buttons on the side console, one for each door. The Proterra push button controls offer the same functionality as the door-control handle while also being far more ergonomic. if works with technical specs of BODE 26) Attachment A: Technical Specifications, 15.4 Operator s Door Control Devices, Page 51

10 Page 10 of 82 IPTC Specification: With the master run switch set to the RUN position, and with the door in the open or unlocked position, a light shall be illuminated on the front dash reading Open Door, so that the operator will know that the rear door is open or unlocked. Request approval for a graphic of a door that is illuminated on the front dash, rather than text reading Open Door. 27) Attachment A: Technical Specifications, 16.1 Lighting Specifications, Page 52 IPTC Specification: A description and diagram of a contractor s exterior lighting configuration(s) shall be submitted with the approved equal process. Request approval of the Catalyst exterior lighting configuration as detailed in Exhibit D. Exhibit D Proterra Standard Exterior Lig 28) Attachment A: Technical Specifications, 16.1 Lighting Specifications, Page 52 IPTC Specification: Turn signal lights shall be provided on both sides of the bus recessed to provide no protrusion from the side of the body. Request approval of the Catalyst turn signal lights which protrude approximately ½ from the side of the body. Please see Exhibit D for additional detail. Exhibit D Proterra Standard Exterior Lig 29) Attachment A: Technical Specifications, 16.1 Lighting Specifications, Page 52 Additional turn signal lights to be installed on both curb and street side adjacent to the front and rear wheelhouse panels installed approximately 40 inches from ground level. Request approval of the standard Catalyst turn signal lights which are located approximately 54 inches above ground level at ride height. Please see Exhibit D for additional detail.

11 Page 11 of 82 Exhibit D Proterra Standard Exterior Lig 30) Attachment A: Technical Specifications, 16.1 Lighting Specifications, Page 52 IPTC Specification: All exterior lights, will be digital, LED Request approval of the standard Catalyst reverse lights which are incandescent. All other exterior lights are LED. Please see Exhibit D for additional detail. Exhibit D Proterra Standard Exterior Lig 31) Attachment A: Technical Specifications, 16.3 Passenger Interior Lighting IPTC Specification: An overhead Dinex IO Controls LED lighting system or approved equal shall provide general illumination in the passenger compartment and shall be controlled independent of the run switch. Request approval for Proterra s standard Hadley XD Overhead system with integrated LED lighting as described in as described in Exhibit E. Exhibit E Hadley Interior Lighting.pdf 32) Attachment A: Technical Specifications, 16.3 Passenger Interior Lighting, Page 52 IPTC Specification: The driver s area shall have a light to provide general illumination and it shall illuminate the half of the steering wheel nearest the driver to a level of 10 to 15-foot candles. Request approval for our interior lighting, which illuminates the driver area to a level of 5-foot candles, which provides minimum glare to the windshield and clearer visibility for the driver.

12 Page 12 of 82 33) Attachment A: Technical Specifications, 16.3 Passenger Interior Lighting, Page 52 IPTC Specification: The floor surface in the vestibule shall be illuminated to no less than 4-foot candles with the front door open and to no less than 2-foot candles when the front door is closed. Request approval of our design which results on 0-foot candles when the door is closed. We comply 4-foot candles with the front door open, but the design is to minimize windshield glare when the door is closed. 34) Attachment A: Technical Specifications, 17.2 Hand Controls, Page 53 IPTC Specification: All switch markings will be wear proof, non-fading, capable of being seen with 2lums of light or less and legible for the life of the bus. Proterra wishes to clarify that our switch markings are designed to be legible for the life of the bus as required but we cannot guarantee that they will be wear proof or non-fading for the life of the bus. 35) Attachment A: Technical Specifications, 17.3 Instrumentation, Page 54 IPTC Specification: Speedometer, air pressure gauge(s), battery temperature, voltmeter, and certain indicator lights shall be located on the front cowl immediately ahead of the steering wheel. Proterra requests approval of our design which monitors the high-voltage battery temperature and triggers an alarm for the driver if the batteries rise above normal temperatures. We do not include a battery temperature monitor on the dash. 36) Attachment A: Technical Specifications, 17.3 Instrumentation, Page 54 IPTC Specification: The steering wheel spokes or rim shall not obstruct the driver s vision of the instruments when the steering wheel is in the straight-ahead position. Proterra wishes to clarify that the driver s vision is not obstructed in most situations but it is possible that certain combinations of a driver s height and seating position may cause certain instruments to be at least partially obscured. IPTC Response: understood

13 Page 13 of 82 37) Attachment A: Technical Specifications, 17.3 Instrumentation, Page 54 IPTC Specification: The on-board monitoring system will be configurable and able to communicate too virtually any interface that can be adopted by the customer. Proterra wishes to clarify that the on-board monitoring system is not configurable by the customer due to safety and design considerations but if IPTC has specific criteria in mind, we would be willing to discuss and determine the feasibility. Additionally, there is no conceivable way to provide assurance that the system could be able to communicate with interfaces that are unknown. 38) Attachment A: Technical Specifications, 17.3 Instrumentation, Page 54 All systems need to be capable to integrate with the Dines G-3 systems or equivalent for centralized reporting, error trapping, documentation, and capable of wireless communication. Request approval for Continental Multiplex system, which is standard on all Catalyst vehicles. Additional information provided herewith in Exhibit F. 39) Attachment A: Technical Specifications, 17.4 Driver s Switches and Controls, Page 55 IPTC Specification: Fast Idle Switch Request that this requirement be removed as not applicable to electric buses. IPTC Response: agreed 40) Attachment A: Technical Specifications, 17.4 Driver s Switches and Controls, Page 55 IPTC Specification: Diagnostic Light Panel Switch(es) Request approval to eliminate this switch as our standard design includes an automatic diagnostic test that runs every time the vehicle is switched on, which eliminates the need for a separate switch. IPTC Response: accepted

14 Page 14 of 82 41) Attachment A: Technical Specifications, 18.1 Trim Panels, Page 56 IPTC Specification: Interior side-trim panels and driver s barrier shall be melamine material. Request approval for Kydex interior panels, which are standard in all Catalyst electric buses. Additional information is provided herewith in Exhibit G. Exhibit G KYDEX T Technical Data Sheet IPTC Response: accepted 42) Attachment A: Technical Specifications, 18.2 Headlining, Page 56 IPTC Specification: Ceiling panels shall be 1/10-inch thick melamine. Request approval for Kydex interior panels, which are standard in all Catalyst electric buses. Additional information is provided herewith in Exhibit G. Exhibit G KYDEX T Technical Data Sheet 43) Attachment A: Technical Specifications, 18.2 Headlining, Page 56 IPTC Specification: Noise deadening material added to achieve required decibel levels mentioned later in this document. Request approval of Proterra s standard design which does not include noise deadening material other than the Kydex panels. Please note that the Composite Body of Proterra s Catalyst bus structure provides the additional benefit of reducing sound levels. 44) Attachment A: Technical Specifications, 18.5 Articulating Joint Insulating Materials, Page 56 IPTC Specification: The vehicle shall be equipped with insulating materials lining the articulation joint. Request that this section be removed as not applicable to 40 buses.

15 Page 15 of 82 IPTC Response: agreed 45) Attachment A: Technical Specifications, 21.3 Loading Ramp System, Page 58 IPTC Specification: A loading ramp system, latest model Lift-U Dual Mode LU18 (6:1 Slope) or approved equal shall provide ingress and egress quickly, safely, and comfortably for a passenger in a mobility air from the street level or curb via the front door. Request approval for the Lift-U LU-11 ramp. The body design of our 40 Catalyst precludes the installation of an LU ) Attachment A: Technical Specifications, 22.3 Outside Rearview Mirrors, Page 60 IPTC Specification: Operations and adjustments of the mirrors shall be from a single switch, selectable for curb and roadside. Request approval for our standard design which uses two switches, one for each mirror. 47) Attachment A: Technical Specifications, 22.3 Outside Rearview Mirrors, Page 60 IPTC Specification: To avoid striking waiting passengers, both mirrors shall be high mounted, and no portion shall be less than 87.5 inches from the roadway surface. Street side mirror shall be a low mount and curb side mirror shall be a high mount. Request approval for our curb-side mirror installation which is 80 from the roadway surface. Additionally, Proterra wishes to clarify that the first referenced sentence conflicts with the second and Proterra proposes our standard low mount street-side mirror. 48) Attachment A: Technical Specifications, 24.1 Propulsion System Controller, Page 64 IPTC Specification: The Propulsion System Controller (PSC) regulates energy flow throughout all system components in order to provide motive performance and accessory loads, as applicable, while maintaining critical system parameters (e.g., voltages, currents, temperatures, etc.) within specified operating ranges.

16 Page 16 of 82 Proterra requests approval of our system design, which does not use a Propulsion System Controller (PSC). We utilize a powertrain controller to manage the traction motor and transmission, an ESM to interface to the batteries, a charge controller for charging, and a vehicle controller to integrate the systems all together. The vehicle controller manages all power flow and ancillary load management. 49) Attachment A: Technical Specifications, 24.1 Propulsion System Controller, Page 64 IPTC Specification: Software capable of adaptive learning such that the bus is optimized per duty cycle on the fly to consider, route, day of week and time of day. The objective is to maintain the bus s level of expected performance, and minimize the cost of electricity from our utility used for charging the batteries. If the proposed PSC controller does not have the capability to perform adaptive learning, the Offeror must perform parameter tuning to help optimize the efficiency of the vehicle to the given route. Proterra requests approval of our system design, which does not use adaptive learning. Our vehicles have been calibrated across over 4,000,000 miles of service in all sorts of operating environments to optimize efficiency and reliability. 50) Attachment A: Technical Specifications, 24.1 Propulsion System Controller, Page 64 IPTC Specification: The ability to execute a limp home instruction so that the bus is able to return to the depot from the furthest point on the route without charge assistance or towing. Proterra wishes to clarify that our system design does have a limp home mode, but it is still subject to battery limits and we can t override mechanical/electrical failure. IPTC Response: accepted 51) Attachment A: Technical Specifications, 24.1 Propulsion System Controller, Page 64 IPTC Specification: A wireless means of communication with the charging stations. Proterra wishes to clarify that wireless communication is not part of charge station communications unless the system is overhead. All of our other chargers adhere to the J1772 CCS communications standard which uses GreenPhy Power Line Communication (PLC).

17 Page 17 of 82 52) Attachment A: Technical Specifications, 24.1 Propulsion System Controller, Page 64 IPTC Specification: The PSC is assumed to include the necessary sensor inputs at strategic locations, such as, temperature, current, voltage, pressure, etc. so the entire array of devices are monitored in real time. This feature shall be able to execute commands for the self-preservation of component life, health, reliability and safety. The on-board diagnostic system shall trigger a visual and audible alarm to the operator when the motor controller detects a malfunction and the protection systems are activated. Proterra requests approval of our system design, which does not use a PSC but does follow J1939 diagnostics and displays where applicable. 53) Attachment A: Technical Specifications, 24.1 Propulsion System Controller, Page 64 IPTC Specification: The PSC shall have an interlock that prevents engagement when the charger is connected to the traction battery. It shall be equipped with an electronically controlled management system, compatible with multiplex wiring systems and either 12- or 24-volt electrical systems. Proterra requests approval of our system design: Our powertrain controller prevents traction when the interlock or the parking brake is set. The vehicle controller sets the brake interlock anytime the charger is connected, and the parking brake is not set. This prevents traction anytime a charger is connected. The multiplex system is a 12/24V system. IPTC Response: will need to see diagram 54) Attachment A: Technical Specifications, 25.5 Battery System Sizing, Page 67 IPTC Specification: The battery must be capable of a rate of charge that allows charging from zero state of charge to 100% state of charge in under four hours. Proterra requests approval for allowing up to 9 hours to charge from zero state of charge to 100%. The charge time is directly impacted by the amount of available onboard storage. IPTC s stated requirement for maximizing range dictates that we propose the maximum amount of on-board energy storage.

18 Page 18 of 82 55) Attachment A: Technical Specifications, 25.5 Battery System Sizing, Page 67 IPTC Specification: The battery must be capable of a rate of charge that allows charging to extend the range by 30 miles within 5 minutes, including any time needed to engage and disengage the charging equipment. Request clarification of this requirement. As all charging will take place in the depot with no current plans for on-route charging, we would like additional information clarification of how IPTC intends for this to be executed. Is IPTC looking for overhead fast-charging to be done in the depot? IPTC Response: no, depot charging for split shift routes 56) Attachment A: Technical Specifications, 26.1 Changing Infrastructure, Page 67 IPTC Specification: These general requirements apply to all charging stations that may be delivered under the Contract. The Offeror shall provide Charging Equipment, Charger Interface and the control and data systems needed to recharge the bus propulsion system batteries. The subject equipment deliverables shall begin downstream of the electric service meter, and shall include the main service panel, sub-panels, step/down transformers, all circuit breakers and disconnect switches. The Offeror shall provide all Charging Equipment and Charger Interface design requirements, specifications and engineering drawings to the City to enable Charging Station site design, permitting, and construction. Is bidder required to provide chargers and infrastructure beyond the meter or just the Charging Equipment and Charger Interface design requirements, specifications and engineering drawings to enable the agency to execute the work independent of this RFP? Due to the amount work required to prepare an accurate infrastructure quote, Proterra respectfully requests an accelerated response to this question. Additionally, Proterra requests that the City to provide site drawings and utility contact information in addition to allowing a site-visit to enable prospective proponents the ability to review the space and site conditions. IPTC Response: just bus charging equipment. IPTC will add all other equipment. 57) Attachment A: Technical Specifications, 26.1 Changing Infrastructure, Page 67 IPTC Specification: The subject equipment deliverables shall begin downstream of the electric service meter Please clarify that IPTC will handle any required service upgrades as different solutions will require different power levels to allow charging in under 4-hours. Higher available on-board energy

19 Page 19 of 82 storage to maximize range as well as stated charging requirements (time limitations) will also require higher infrastructure costs. IPTC Response: Bus will need to be fully charged within 4 hours to meet service. 58) Attachment A: Technical Specifications, 26.1 Changing Infrastructure, Page 67 IPTC Specification: The chargers shall be equipped with an E-Mon Class 3200 submeter (or approved equal) that: measures and displays kwh consumed and real-time load in KW within 1% accuracy, is capable of RS-485 communications and, records kwh and kvarh delivered, kwh and kvarh received. Please clarify whether IPTC is requesting that each individual charger be equipped with the referenced submeter; or whether one charger would be required to cover all chargers. IPTC Response: each bus 59) Attachment A: Technical Specifications, 26.1 Changing Infrastructure, Page 68 IPTC Specification: Conductive cabling connecting depot and convenience chargers to the bus shall be of seventeen-foot (max) length and shall connect to a receptacle at the rear of the bus, center. Proterra requests approval for the charging port to be located on the curb-side rear of the bus rather than the rear, center. Additionally, Proterra wishes to clarify that the length of the cable may need to be adjusted based on the final configuration of the depot charging layout, especially as IPTC s electric bus fleet expands. 60) Attachment A: Technical Specifications, 26.1 Changing Infrastructure, Page 68 IPTC Specification: A single bus mounted receptacle shall serve both the depot charging stations and the On-Route charging stations. Addendum #1 clarified that IPTC is requiring all charging to be completed at the headquarters (depot). Although IPTC also stated inductive On-Route charging will be required in the future, Proterra wishes to clarify that on-route charging (conductive) is typically accomplished using overhead pantograph charging rather than plug-in charging. Would IPTC consider a solution using overhead charging which would accommodate depot charging as well as future on-route charging (conductive)? Please note that an overhead system

20 Page 20 of 82 would be much more ideal for the power levels needed for on-route as well as in-depot charging given the requirements for charge rates and high volume of onboard energy. IPTC Response: inductive only. 61) Attachment A: Technical Specifications, 26.1 Changing Infrastructure, Page 68 IPTC Specification: The bus mounted receptacle shall be of simple and ergonomic design, of not more than 25 pounds (plug and cord), not more than two plugs. Please clarify the intent of this requirement. Does IPTC mean that the plug and entire cord not exceed 25 pounds? (The sentence also mentions the receptacle). IPTC Response: the male end and cord should not be more than 25#'s 62) Attachment A: Technical Specifications, 26.1 Changing Infrastructure, Page 68 IPTC Specification: The depot chargers shall be capable of discharging the on-board energy storage system to facilitate making repairs the preferred means of discharge shall be to return the power to the utility grid. Please clarify whether IPTC would consider having the discharge feature on one or two chargers at a lower power level than is required for a 4-hour charge. Alternatively, would IPTC consider this feature being provided on the bus without the use of a charger (this would not return the power to the grid). 63) Attachment A: Technical Specifications, 26.4 Wireless Communication System, Page 68 IPTC Specification: The Charging Stations shall be equipped with a wireless communication system to transmit information on each charge event, including, but not limited to bus ID, charger status, faults, beginning SOC, charge amount, ending SOC, charge duration, energy consumption at the Mains Supply, energy consumption at the charge interface, max power, ambient temperature, etc. Can the proposer meet the data transmission requirement through industry standard communication interfaces? SAE J1772CCS is the prevailing national charge standard used by many OEMS. This protocol uses power line communication instead of wireless communication to communicate between the charger and the vehicle. IPTC Response: this is for depot monitoring over Wi-Fi.

21 Page 21 of 82 64) Attachment A: Technical Specifications, 27 Power Plant and Battery Cooling Systems, Page 69 IPTC Specification: The cooling system shall have an ambient capacity of at least 120 F with water as coolant at 5,000 feet above sea level operation Proterra requests approval of our cooling system, which uses 50/50 water ethylene glycol as coolant. IPTC Response: if it meets the stated spec's, yes. 65) Attachment A: Technical Specifications, 27 Power Plant and Battery Cooling Systems, Page 69 IPTC Specification: Thermal management shall be continuously monitored during all periods of charge and discharge with appropriate safety interlocks installed to react to adverse conditions as stated in SAE-J1772. Proterra wishes to clarify that we monitor the battery thermal management system, but ultimately the response to a failure is based on the thermal needs of the battery. We do not automatically stop charge if the thermal system has a problem. We do stop charging if the batteries are outside of their operating limits. 66) Attachment A: Technical Specifications, 27 Power Plant and Battery Cooling Systems, Page 69 IPTC Specification: In the event of a failure of the battery thermal management system while charging, the charge system shall be disabled, and a visual alert shall be activated on the dashboard, the reset of which shall require the deliberate action of maintenance personnel. Proterra wishes to clarify that, as stated above, the thermal system is not the protection, rather the battery temperature is. This also doesn t latch and require deliberate action of maintenance personnel. Although this is often a popular thought, as it may seem logical, history has proved otherwise. Warm/cold condition is not a true indication of failure and requiring maintenance interaction has been frowned upon, unless it is truly needed. 67) Attachment A: Technical Specifications, 27 Power Plant and Battery Cooling Systems, Page 69

22 Page 22 of 82 IPTC Specification: In the event of a failure of the battery thermal management system during bus operation, an audible and visual alert shall be activated on the dashboard, the reset of which shall require the deliberate action of maintenance personnel. Proterra wishes to clarify that we do present audible (chirp to indicate a new failure) and a visual indication to the driver on failures that they need to respond to. However, these do not always need deliberate action to clear, but in general indicate a failure which requires repair so the repair is the deliberate action. 68) Attachment A: Technical Specifications, 27 Power Plant and Battery Cooling Systems, Page 69 IPTC Specification: In the event of a fire onboard a bus, thermal management fans shall be automatically turned off. Proterra wishes to clarify that our standard design does not incorporate a fire detection system and the specification provided does not required a fire detection system. If IPTC adds this as a requirement, Proterra wishes to clarify that our response is to indicate a severe issue to the driver and then to allow them to make the decision as to how to proceed. IPTC Response: do the fans turn off if there is a fire? 69) Attachment A: Technical Specifications, 27.1 Traction Motors Cooling, Page 70 IPTC Specification: The cooling system will provide all necessary cooling to the traction motors. Motor temperature sensors shall be easily accessible for replacement. Proterra wishes to clarify that the motor temperature sensors built into the permanent magnet motors and are designed to last the life of the motor and are not designed for quick replacement. Note: With over 4,000,000 service miles on our buses, we are not aware of any previous failures of these components. 70) Attachment A: Technical Specifications, 27.1 Traction Motors Cooling, Page 70 IPTC Specification: Motor temperature sensors shall not disable the bus at any time. Proterra wishes to clarify that motor temperature sensors will not shut down the bus but a high enough motor temperature will de-rate the motor up to 100%.

23 Page 23 of 82 IPTC Response: OK 71) Attachment A: Technical Specifications, 28 Retarder, Page 70 IPTC Specification: The powertrain shall be equipped with a retarder designed to extend brake lining service life. The retarder shall be adjustable within the limits of the powertrain and activated when the accelerator pedal has been released. IPTC will work with the OEM/drive system manufacturer to determine retarder performance settings. Proterra wishes to clarify that our propulsion system includes regenerative braking but not a conventional retarder. When the driver takes a foot off of the accelerator, the vehicle slows and the motor runs in reverse, directing energy to the batteries to charge. Additionally, application of the brake pedal increases the regenerative braking while also applying service brakes. Braking maintenance is reduced because drivers engage the brake pedal far less--significantly extending the lifespan of the braking system s parts. Note: The regenerative braking is optimized and not adjustable. IPTC Response: OK 72) Attachment A: Technical Specifications, 28.2 Regenerative Brake Management, Page 70 IPTC Specification: Any time the bus is coasting or slowing down the brake lights shall turn on, with or without regenerative braking engaged. Proterra requests approval for the brake lights to be activated by either application of the service brake or when the regenerative braking is engaged. 73) Attachment A: Technical Specifications, 31.1 Spring and Shock Absorbers, Page 71 IPTC Specification: Front axle shall be a fixed solid beam axle as manufactured by Arvin Meritor or approved equal. Request approval for Proterra s Catalyst electric transit buses which incorporate a heavy-duty Independent Front Suspension (IFS) using ZF components. Benefits include: a smaller turning radius, better ride quality, improved vehicle handling, higher roll stiffness, and less load on road surface by reducing unsprung masses.

24 Page 24 of 82 74) Attachment A: Technical Specifications, 31.1 Spring and Shock Absorbers, Page 71 IPTC Specification: The suspension system shall permit a minimum wheel travel of 3.5 inches in jounce and 3 inches in rebound KONI or equivalent. Request approval of Proterra s standard Sachs shock absorbers, which are inherent to the design of the Catalyst suspension system and are supplied by ZF. 75) Attachment A: Technical Specifications, 31.2 Kneeling, Page 71 IPTC Specification: A driver actuated kneeling device shall lower the bus during loading or unloading operations, regardless of load to a maximum floor height of 10.6 inches measured at the longitudinal centerline of the front door. Request approval of a knelt height of 12.5 measured at the centerline of the front door. 76) Attachment A: Technical Specifications, 32.2 Steering Column, Page 72 IPTC Specification: The steering column shall be a tilt/telescopic unit, Douglas model 929, or approved equivalent Proterra requests approval of our standard Douglas model IPTC Response: diagram needed before approval 77) Attachment A: Technical Specifications, 33.1 Service Brakes, Page 72 IPTC Specification: IPTC requires (S) Cam actuated brakes with automatic Haldex slack adjusters or approved equal. Request approval of 4-wheel Disc brakes with optional traction control. Note: The proposed service brake system does not incorporate slack adjusters. 78) Attachment A: Technical Specifications, 33.4 Air System, Page 73 IPTC Specification: The air compressor shall be a Wabco or approved equal. The bus air system shall operate all accessories and the braking system with reserve capacity. The engine driven air

25 Page 25 of 82 compressor shall be sized to charge the air system from 40 psi to the governor cutoff pressure in less than 3 minutes while not exceeding the engine s rated speed. Request approval of our standard Hydrovane air compressor, as described in Exhibit H. Proterra s proposed compressor was sized to maximize performance and vehicle efficiency and can charge the air system from 40psi to governor cut-off in less than 4 minutes. EXHIBIT H Air Compressor.pdf 79) Attachment A: Technical Specifications, 33.4 Air System, Page 73 IPTC Specification: Nylon tubing shall be installed in accordance with the following color-coding standard. Green: Indicates primary brakes and supply Red: Indicated secondary brakes Brown: Indicated parking brakes Black: Indicated accessories Proterra requests approval of the following additions to the provided chart, which have been added to assist troubleshooting in the field: Orange: Street side air bags Blue: Curbside air bags Yellow: Air bag solenoid input air & transmission air 80) Attachment A: Technical Specifications, 33.4 Air System, Page 73 IPTC Specification: Provision shall be made to apply shop air to the bus air system using a standard tire inflation type. This valve shall be conveniently located in the engine compartment and shall include a 3/8 FIP fitting ahead of the tire inflation valve. Proterra requests approval of our standard design which incorporates Our standard setup is to have a tire inflation fitting (schraeder valve) for each air bag or set of air bags. All 4 of these are located behind the street side rear panel. We also have a male quick disconnect fitting located next to these valves and one located at the front of the bus behind the bumper, both of which can be used to fill the air tanks.

26 Page 26 of 82 81) Attachment A: Technical Specifications, 33.4 Air System, Page 73 Air for the compressor shall be filtered through the main engine, air cleaner system Proterra requests approval of our standard dryer intake filter. Please note that electric buses do not have a main engine air cleaner system. 82) Attachment A: Technical Specifications, 36.1 Electrical Supply Wiring and Terminals, Page 75 IPTC Specification: A multiplex electrical system, provided by Dinex I/O Controls is required, or it s approved equal. Request approval for Continental Multiplex system which is standard on all Catalyst vehicles. Additional information provided herewith in Exhibit F. Exhibit F Continental Multiple 83) Attachment A: Technical Specifications, 36.1 Electrical Supply Wiring and Terminals, Page 75 IPTC Specification: Please specify a UPS for the on-board radio, video, and GPS systems to be installed in the cabinet behind the driver. Request approval for the radio, video and GPS systems to connect to the bus power rather than a UPS. An additional power supply is not needed with an electric vehicle. 84) Attachment A: Technical Specifications, 37.1 Capacity and Performance, Page 76 IPTC Specification: System shall be programmable by IPTC s technician and set at 65 degrees airconditioning and 80 degrees heating and in the reheat mode. Proterra wishes to clarify that set points are controlled and set through the bus software and are programable only via the Proterra service tool. Due to the energy consumption required for reheat (22.5kW), we do not have provision for reheat.

27 Page 27 of 82 85) Attachment A: Technical Specifications, 37.1 Capacity and Performance, Page 76 IPTC Specification: Engine temperature shall be within the normal operating range at the time of startup of the cool down test and the engine speed shall be limited to fast idle that may be activated by a driver controlled device. The bus shall be parked in direct sunlight with ambient temperature at 100 degrees F and humidity less than 60 percent. Please note that many of these testing parameters are not applicable or feasible with electric buses. There are no engines and there is no fast idle. Due to the need to maximize efficiency and range, it is recommended that the buses are preconditioned (cooled down or heated up, prior to leaving the depot), when still plugged in. The challenges associated with idling conventionally powered buses do not apply to electric buses. 86) Attachment A: Technical Specifications, 38.1 Fare Collection, Page 78 IPTC Specification: A 20-amp, 12-volt, DC, protected circuit shall be available to power the fare box. This power service shall include a grounded lead with both wires enclosed in a flexible conduit. Note: This section should probably be numbered 38.7 as it follows 38.6; also 38.1 was used previously for radios. Request approval for our standard design which uses split loom rather than flexible conduit. 87) Attachment A: Technical Specifications, 39.2 Manuals, Page 79 IPTC Specification: All Service and Parts Manuals furnished for the buses shall also be supplied in a PDF format on CD-ROM disks to allow the information to be loaded into IPTC s Materials Management Information System. A total of six (6) CD-ROM sets will be supplied upon delivery of first bus. Request delivery of electronic manuals through a customer-specific website allowing unlimited, free download of the latest revision of all documents rather than CD-ROM.

28 Page 28 of 82 88) Section 17.4 Driver s Switches and Controls, Page 54 Questions/clarification or approved equal: New Flyer requests acknowledgement that a Fast-Idle Switch is not required on the New Flyer electric bus. IPTC Response: agreed 89) Section 26.1 Charging Infrastructure, Page 67 Questions/clarification or approved equal: New Flyer requests clarification on the charging receptacle. New Flyer's design currently puts the depot charging receptacle in the rear curbside. Please note that the depot charging receptacle is separate from the rooftop system, which used for enroute charging. IPTC Response: must be in rear of bus 90) Section 26.2 Depot Charging Stations, Page 68 Questions/clarification or approved equal: New Flyer requests clarification on this section. Can IndyGo please elaborate what is required? IPTC Response: see above addendum answer 91) Section 7 Warranties, Page 40 Questions/clarification or approved equal: New Flyer requests approval to provide basic bus warranty that is warranted and guaranteed to be free from defects, and related defects, for two years or 100,000 miles - whichever occurs first - beginning on the date of acceptance of each bus. The warranty shall not apply to scheduled maintenance items, acts of nature, or normal consumables such as tires, belts, bulbs/tubes or items with progressive wear characteristics (bushings, wiper blades, friction surfaces). Please refer to the attached Consumables Excluded document for further details. IPTC Response: agreed 92) Section 7.1 Propulsion Systems and Major Sub Systems, Page 40 Questions/clarification or approved equal: New Flyer requests approval to provide the following 'whichever occurs first' warranties: Drive and Non- Drive Axles - 5 years / 300,000 miles MAN limited axle warranty. Please refer to the attached MAN warranty documents for coverage & exclusions. This is the maximum warranty available from the supplier Heat Pump / AC - 3 years / unlimited miles. This is the maximum warranty available from the supplier. Leaks (water from bus washer or rain) - 3 years / 150,000 miles. This is an industry standard.