Case Study: Silicon Valley Smart Home OutBack Grid/Hybrid Power System Installation with Energy Storage

Transcription

1 Case Study: Silicon Valley Smart Home OutBack Grid/Hybrid Power System Installation with Energy Storage Overview Nestled next to Palo Alto and Stanford University, the phrase high tech thoroughly understates lifestyle expectations in Menlo Park, California. It was with the center of this hub for green living and home technology as a backdrop that aspiring home builder Brent Brown laid out his ambitious plans for a more intelligent home even by local standards. Brent envisioned a new home for himself and his family (which includes 4 children) that would get as close to net-zero living as possible in a dense suburban setting. His goals were clear: He wanted secure and independent living along with the ability to save on energy costs. And he wanted to achieve it with as strong a cultural fit as possible in a neighborhood where trying out any and all new, cool and viable technologies is viewed as part of daily living. With over 300 days of sunshine available annually, Brent s alternative energy research started and ended at solar electricity, which, he observed, had come a long way and was more affordable and cost-effective than ever. System Specifications Location: Silicon Valley, California Components: 8kW Radian Series Inverter/ Charger, (12) EnergyCell RE Batteries for 16kWh capacity housed in an IBR-3 and OPTICS RE System Monitoring and Control Today, most homes have the potential to become their own power producers, and when interconnected with the grid the sun is an awesome source of power! With OutBack Power s technology I can take full advantage of it. Brent Brown Homeowner Above all, Brent wanted off-grid capability in the suburbs for a very pragmatic as well as an economic reason. After all, even the smartest home conceivable, loaded with all the latest in control, lighting HVAC, networking and entertainment technology, is helpless without a source of power. Without off-grid capability, when the grid is down you have to leave all your solar electricity up on the roof that was very eye opening for me when I did my research noted Brent. With a hybrid system, for a few dollars more you have an insurance policy against storms and third-party disruptions, which otherwise are a real concern. With electricity production on-site to run your home, you create independence.

2 Objectives Ensure secure, independent living and back-up a fully equipped smart home Reduce electricity bills in a high-cost area Make a strong innovative technology statement with a practical, cost-effective solar installation benefiting from both California s SGIP program as well as NSHP program (New Solar Home Partnership) Solution After finalizing on OutBack Power as the best source for critical hybrid system components, Brent teamed with Jason Andrade at West Coast Sustainables for design and implementation. One condition was minimizing the systems visible rooftop profile from the road, and with multiple roof lines and angles defining the striking 8,000+ square foot residence, Jason chose an AC-coupled approach using rooftop microinverters to extract the maximum output possible from the 24 individual panels without resorting to tilting. The rooftop inverters interface through an 8kW OutBack Radian 8048A Grid/Hybrid inverter/charger, which, according to Jason, provides a supersmooth transition along with adding energy storage capability to the system, using OutBack batteries. The battery complement of three strings of OutBack 200RE EnergyCell batteries is housed in the OutBack UL-listed 3-shelf Integrated Battery Rack (IBR-3) commented Jason, I love the rack, it s very clean! As Jason explains the system design, it is back-up primarily, to take full advantage of the California Self-Generating Incentive Program (SGIP) rebate 16kWh provides half the required rating. It took a bit of paperwork since this was our first SGIP application, but it all went well. And we also designed for system expansion, with a provision to add between 6-8 more panels based on the energy produced over during the first year, so as to stay in California Tier 1 pricing. This was with an eye toward future needs. The home includes two electric vehicle (EV)charging stations, but Brent does not own an EV yet as he said, this is great reason to get one! Another future load will be an irrigation well, with drilling just started, contributing to the home s urban independence technology theme. In order to accurately monitor system performance, production and health, Jason and Brent are taking advantage of OPTICS RE system monitoring and control which is now a standard feature in new OutBack solutions. Explained Jason, OPTICS RE is both a valuable homeowner feature plus really aids the installer. Our company is in Redding, which is a nine hour round trip, so being able to dial-in for troubleshooting and preventative maintenance is invaluable. Homeowner Brent Brown agreed, adding I really like interacting with OPTICS RE; in fact I probably use it too often! It s great, it gives me a more granular view of the system s performance; I especially like watching for demand load spikes in consumption. Brent s sense of satisfaction extends to the rest of the system: You don t notice it, it basically maintains itself. It is not timeconsuming, the home just kind of operates. I couldn t be happier. Address: 330 Vernon St. 164 Roseville, CA Phone: anewenergyrevolution@gmail.com Website: energyexpertsolutions.com/shop

3 Radian Series A-SERIES 60HZ, 120/240V INVERTER/CHARGERS Three Reasons to Choose the Radian Series Inverter/Charger Series from OutBack Power: 1. ENGINEERED FOR RELIABILITY Extensive quality and reliability testing, including Highly Accelerated Life Testing (HALT) 15 years of experience manufacturing products for faultintolerant, mission-critical applications Standard 5 year warranty (extended 10 year warranty available) Field upgradeable software 2. DESIGNED FOR FLEXIBILITY Modular, stackable: up to nine units can be combined for three-phase operation and ten in parallel, single-phase operation Compliant with California Rule 21 and Hawaii 14H grid support requirements Seven different programmable operational modes, with generator assist Advanced Battery Charging (ABC) programmability accommodates traditional and advanced chemistry batteries GridZero operating mode minimizes grid dependence in areas where incentives are changing and utility sell-back is limited 8000 and 4000VA of continuous power with dual AC inputs and peak operating efficiency of 96% Off-grid and grid-tied functionality in one unit Integrates both grid and generator with dual inputs Power Flow GS8048A/GS4048A PV Source Optional GS Load Center (GSLC) OutBack FLEXpower Radian Typical System Integration (w/ Radian Inverter/Charger): 3. EASY-TO-INSTALL AND MAINTAIN System configures quickly with smart programming wizards Pre-wired GS load center (GSLC) option allows for quick, easy installation Complete balance-of-system components available Field-serviceable modular design and global technical support Monitor, command and control from any internet-connected device with OPTICS RE Grid Generator Main Panel Load Sub Panel FLEXpower Radian Energy Storage OUTBACK POWER MASTERS OF THE OFF-GRID. FIRST CHOICE FOR THE NEW GRID. MAKE THE POWER FLEXpower Integrated Systems Inverter/Chargers & Charge Controllers STORE THE ENERGY EnergyCell RE, GH, NC and OPzV Batteries Battery Enclosures and Racking MANAGE THE SYSTEM OPTICS RE System Monitoring and Control MATE3 System Display and Communications 1

4 Radian A-Series SPECIFICATIONS 08/2017 Models: GS8048A GS4048A Instantaneous Power (100ms) 16970VA 8500VA Surge Power (5 sec) 12000VA 6000VA Peak Power (30 min) 9000VA 4500VA Continuous Power Rating 25 C) 8000VA 4000VA Nominal DC Input Voltage 48VDC 48VDC AC Output Voltage (selectable) 120/240VAC ( VAC) 120/240VAC ( VAC) AC Output Frequency (selectable) 60Hz (50Hz) 60Hz (50Hz) Continuous AC Output Current 25 C) 240VAC 16.7AAC Idle Power Invert mode, no load: 34W Search: 10W Invert mode, no load: 34W Search: 10W Typical Efficiency 93% 93% CEC Weighted Efficiency 92.5% 92.5% Total Harmonic Distortion Typical: <2% Maximum: <5% Typical: <2% Maximum: <5% Output Voltage Regulation ±2% ±2% AC Input Voltage Range (MATE3 Adjustable) L1-N or L2-N: 85 to 140VAC L1-N or L2-N: 85 to 140VAC AC Input Frequency 60Hz: 54 to 50Hz: 45 to 55Hz Grid-Interactive Voltage Range L1-N or L2-N: 85 to 140VAC L1-N or L2-N: 108 to 132VAC Grid-Interactive Frequency Range 59.3 to 60.5Hz 59.3 to 60.5Hz Maximum AC Input Current 240VAC 240VAC Maximum Utility Interactive Current 30A 15A Continuous Battery Charge Output 115ADC 57.5ADC Advanced Battery Charging Flooded, gel, AGM, lithium-ion and flow chemistry Flooded, gel, AGM, lithium-ion and flow chemistry DC Input Voltage Range 40 to 64VDC 40 to 64VDC Accessory Ports Remote temperature sensor (included), MATE3 and HUB communications Remote temperature sensor (included), MATE3 and HUB communications Warranty Standard 5 year, extended 10 year available Standard 5 year, extended 10 year available Weight (lb/kg) Unit: 125 / 56.7 Shipping: 140 / 63.5 Unit: 82 / 37.2 Shipping: 94 / 42.6 Dimensions H x W x L (in/cm) Unit: 28 x 16 x 8.7 / 71.1 x 40.6 x 22.1 Shipping: 34.5 x 21 x 14.5 / 87.6 x 53.3 x 36.8 Unit: 28 x 16 x 8.7 / 71.1 x 40.6 x 22.1 Shipping: 34.5 x 21 x 14.5 / 87.6 x 53.3 x 36.8 Temperature Range Rated: -20 to 50 C Maximum: -40 to 60 C Rated: -20 to 50 C Maximum: -40 to 60 C Listings/Certifications ETL listed to UL 1741 SA, CE, CSA C22.2 No , UL 778 Annex F, IEC ETL, RoHS compliant per directive 2011/65/EU, FCC Class B, IEEE , EN , EN , EN , EN Non-Volatile Memory Yes Yes Field Upgradeable Firmware Yes Yes Chassis Type Vented Vented ETL listed to UL 1741 SA, CE, CSA C22.2 No , UL 778 Annex F, IEC ETL, RoHS compliant per directive 2011/65/EU, FCC Class B, IEEE , EN , EN , EN , EN Radian GS8048A Power Factor Chart Radian GS8048A Power Rating Chart Radian GS8048A Efficiency Rating Chart Power Factor kVA 8.0kW 8.0kVA 6.8kW Industry-Standard Non-Industry Standard Power (VA) VA 12000VA 9000VA 8000VA 100ms 5 sec 30 min continuous Efficiency 100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0% 93% (Typical) 2kVA 4kVA 6kVA 8kVA 92.5% (CEC) Power Rating Notes Inverters that specify power in VA but do not use the unity standard Power Factor (PF) could have misleading power specifications. Volt-Amps (VA) is a total inverter output, while Watts (W) represent the power consumed by the electrical loads. PF, which varies by types of loads, is the ratio of W to VA, and the difference between the two is power in the circuit that does no useful work. At 1.0PF (unity), all power is used. This is the industry-standard used by OutBack Power. Instantaneous Power Rating Most stringent, massive load start GS8048A: 16970VA Surge Power Rating Less stringent load start GS8048A: 12000VA Peak Power Rating Frequent heavy duty load requirements GS8048A: 9000VA Continuous Power Rating Sustained real world load requirements GS8048A: 8000VA INVERTING SELLING Typical Efficiency Rating Real world efficiency with variable loads GS8048A: 93% CEC Efficiency Rating Most stringent US rating GS8048A: 92.5% 2

5 EnergyCell RE High Capacity Series 2V VRLA AGM BATTERY Three Reasons to Choose the EnergyCell RE Series from OutBack Power: 1. PURPOSE-BUILT Designed for off-grid or grid-tied battery backup residential and light commercial applications 1,800 50% depth of discharge Space-saving 4x6 standard 48V system configuration Battery frame design allows for maximum heat dissipation 100% out of box initial battery capacity 2. EASY-TO-INSTALL AND MAINTAIN VRLA-AGM technology means 99% gas recombination efficient, no periodic watering of cells, no re-torquing of terminal connections, and no equalization charge under standard operating conditions. Steel module design, cells factory installed in permanent steel modules with 1 or 2 cells per can, allows for ease of replacement Standard top termination, optional side termination Clear flame retardant front safety shields allow for easy visual inspection without removal of cells Flame-retardant battery jars for increased safety OPTICS RE connectivity means real-time access to critical battery performance data Batteries and power electronics can be installed in the same area * 3. SINGLE-BRAND SYSTEM SOLUTION Optimized to work seamlessly with OutBack power conversion equipment Ease of ordering with SystemEdge package configurations to learn more visit Single point of contact for all technical system inquiries Quality and reliability from OutBack Power assures customers receive the best technologies for renewable energy systems in the market today OutBack EnergyCell RE High Capacity Series Typical System Integration: Power Flow Grid Generator Main Panel Load Sub Panel PV Source FLEXpower TWO Energy Storage OUTBACK POWER MASTERS OF THE OFF-GRID. FIRST CHOICE FOR THE NEW GRID. MAKE THE POWER FLEXpower Integrated Systems Inverter/Chargers & Charge Controllers STORE THE ENERGY EnergyCell RE, GH, NC and OPzV Batteries Battery Enclosures and Racking MANAGE THE SYSTEM OPTICS RE System Monitoring and Control MATE3 System Display and Communications 1

6 EnergyCell RE High Capacity SPECIFICATIONS 10/2017 EnergyCell Models: 800RE 1100RE 1300RE 1600RE 2000RE 2200RE 2700RE Nominal Voltage Per Cell 2V 2V 2V 2V 2V 2V 2V Nominal Voltage Per System 24VDC / 48VDC 24VDC / 48VDC 24VDC / 48VDC 24VDC / 48VDC 24VDC / 48VDC 24VDC / 48VDC 24VDC / 48VDC Cycle Life (50% DOD, 1.75VPC) Absorb Voltage (25 C) VDC 55.6VDC 55.6VDC 55.6VDC 55.6VDC 55.6VDC 55.6VDC Absorb Time 2 2hrs 2hrs 2hrs 2hrs 2hrs 2hrs 2hrs Float Voltage (25 C) 1 54VDC 54VDC 54VDC 54VDC 54VDC 54VDC 54VDC Float Time = absorb time = absorb time = absorb time = absorb time = absorb time = absorb time = absorb time Equalize Voltage 2.32VDC 2.32VDC 2.32VDC 2.32VDC 2.32VDC 2.32VDC 2.32VDC Re-Bulk Voltage 3 24VDC / 48VDC 24VDC / 48VDC 24VDC / 48VDC 24VDC / 48VDC 24VDC / 48VDC 24VDC / 48VDC 24VDC / 48VDC Re-Float Voltage VDC / 25VDC / 50VDC 12.5VDC / 25VDC / 50VDC 12.5VDC / 25VDC / 50VDC 12.5VDC / 25VDC / 50VDC 12.5VDC / 25VDC / 50VDC 12.5VDC / 25VDC / 50VDC 12.5VDC / 25VDC / 50VDC Maximum Charge Current (Per Battery) A 212.5A 250A 300A 375A 400A 500A Operating Temperature Range (w/temperature Compensation) -4 to 122 F (-20 to 50 C) -4 to 122 F (-20 to 50 C) -4 to 122 F (-20 to 50 C) -4 to 122 F (-20 to 50 C) -4 to 122 F (-20 to 50 C) -4 to 122 F (-20 to 50 C) -4 to 122 F (-20 to 50 C) Optimal Operating Temperature Range 68 to 86 F (20 to 30 C) 68 to 86 F (20 to 30 C) 68 to 86 F (20 to 30 C) 68 to 86 F (20 to 30 C) 68 to 86 F (20 to 30 C) 68 to 86 F (20 to 30 C) 68 to 86 F (20 to 30 C) Temp-Comp Factor (Charging) Self-Discharge Time 6 25 C 6 25 C 6 25 C 6 25 C 6 25 C 6 25 C 6 25 C Terminal Type M8 bolt, lock, flat washer M8 bolt, lock, flat washer M8 bolt, lock, flat washer M8 bolt, lock, flat washer M8 bolt, lock, flat washer M8 bolt, lock, flat washer M8 bolt, lock, flat washer Terminal Hardware Initial Torque 88in-lbs 88in-lbs 88in-lbs 88in-lbs 88in-lbs 88in-lbs 88in-lbs Weight (lb/kg) 2262 / / / / / / / V System Dimensions H x D x W (in/cm) x 23.5 x / 110 x x x 23.5 x / x x x x / x x x x / x x x x / x x x x / x x Warranty 5 3 years 3 years 3 years 3 years 3 years 3 years 3 years x x / x x V Standard System Configuration ** 6w x 4h 4w x 6h 3w x 8h 3w x 8h 4w x 6h 3w x 8h 4w x 6h 1 2 If using both inverter and charge controller, set the charge controller to 0.4V higher (0.2V for 24V systems) to give the charge controller charging priority. Will always be 2 hours if charge rate is 10% of battery bank amp-hours. For higher or lower charge 3 rates, use the formula AR (CR x 0.5) = absorb time where AR = amp-hours remaining after absorb voltage is first reached (10% of battery bank Ah) and Cr = amp-hours of current charge. Default values for 12/24/48V systems. May need to be adjusted for site application. 4 Batteries to be installed with 0.5in (12.7mm) spacing minimum and free air ventilation. 5 6 See OutBack EnergyCell warranty document for full details. Equalize in the following conditions if float voltage of any cell is less than 2.17VPC or ** the float voltage range after 6 months is outside the ±0.08V of nominal setting. 24hrs after current stabilization, (3hrs without charge), at ambient temperatures from 70 to 90 F (21 to 32 C). Other configurations available with longer lead times. Ask your OutBack distributor for details. 2V Ampere Hour Capacity to 1.75 Volts Per Cell at 77 F (25 C) Discharge in Hours: EnergyCell 800RE EnergyCell 1100RE EnergyCell 1300RE EnergyCell 1600RE EnergyCell 2000RE EnergyCell 2200RE EnergyCell 2700RE * Consult local and regional electrical code for proper installation of energy storage requirements. 2

7 Integrated Battery Racks Comprehensive Battery Enclosure Solution with Cell Interconnect Ideal for Use with OutBack Radian, FLEXpower and FLEXcoupled Systems Fast Installation Supports Multiple 48V Strings of OutBack EnergyCell RE, GH and Nano-Carbon Batteries Overcurrent Protection on Each Battery String Provides Added Safety and Flexibility Well-Ventilated for Increased Battery Safety and Longevity Protective Terminal Covers Space-Saving Design with Smaller Footprint IBR-2 IBR-3 Designed to Meet UL1741 With the PV energy storage market expected to reach nearly $30 billion USD by 2017 * and interest growing for smarter grid-interactive and AC-coupled systems, the demand for more versatile, flexible and cost-effective battery-bank deployment solutions for commercial and residential systems is increasing as a result. OutBack Power has responded with a line of preassembled battery racks designed to meet the needs of system integrators and installers and provide the best of both worlds: OutBack quality in a more easily specified and installed package. The innovative OutBack Integrated Battery Rack system is a comprehensive battery enclosure which includes all cell interconnects, cabling, and series string over current protection and disconnects. All electrical connections are made at the factory and ship fully assembled with the exception of the batteries, which can be quickly added and connected on the job site, making the Integrated Battery Rack uniquely easy to specify, order and install. Unlike typical steel racks or sheet-metal enclosures, the OutBack design is crafted of powder coated aluminum, resulting in a cleaner appearance able to withstand the most challenging environments while weighing less than 90 pounds. The 2-shelf IBR-2 is sized to fit under an OutBack Radian inverter/charger to reduce system component clutter and make the best use of installation space. Clear covers on the racks permit visual inspection of internal components while providing additional protection for the batteries and electrical connections. * IHS Research 2013 report, The Potential for Energy Storage in the PV Industry OutBack reserves the right to make changes to the products and information contained in this document without notice. Copyright OutBack Power. All Rights Reserved. OutBack is a registered trademark of The Alpha Group.

8 Integrated Battery Rack Specifications 03/2016 Models: IBR IBR Dimensions H x W x D (in/cm) 33 x 27 x 24.5 / 83.8 x 68.6 x x 27 x 24.5 / x 68.6 x 62.2 Weight w/out Batteries (lb/kg) 60 / / 40.4 Physical Characteristics inch thick aluminum enclosure with FLEXware silver finish; plated copper bus bars and clear protective covers. Ships fully assembled (except for batteries) String Overcurrent Protection 175ADC 175ADC Gauge of Conductors 1/0 AWG 1/0 AWG Capacity Up to 8 EnergyCell batteries Up to 12 EnergyCell batteries Nominal System Voltage 48VDC 48VDC Supported Batteries * EnergyCell 200RE, EnergyCell 170RE, EnergyCell 200GH, EnergyCell 220GH, EnergyCell 200NC and EnergyCell 170NC * Batteries are sold separately

9 Access your solar energy system anytime, anywhere. It s a powerful advantage the ability to see the electricity you produce and consume. To monitor and control your renewable energy system with the touch of a button from any internet connected device anywhere in the world. Real-time status and hands-on control of your power flow and energy storage. Track individual system performance or manage a network of dispersed systems. OpticsRE from OutBack Power. OutBack OpticsRE Features: See your energy use and production Access your system from any internet connected device Remote control access of your system Easily verify system performance and health Smart grid ready Simple insight into complex data via historical graphs Notifications and alerts sent via Protect your solar energy investment Save up to 30% on energy bills Stay connected with your green lifestyle Solar Heating & Air Experts 330 Vernon St. 164 Roseville, CA anewenergyrevolution@gmail.com energyexpertsolutions.com/shop