ENERGY SAFETY SUSTAINABILITY

ENERGY SAFETY SUSTAINABILITY

ESSTALION was created to develop the safest and most efficient, reliable and utility-friendly energy storage systems. Choose ESSTALION because: We know utilities and utilities need a better solution Safety is our number one priority and we have the expertise to deliver And because energy is our business Why ESSTALION for power grids INHERENT SAFETY (no thermal runaway) LONG LIFE UNDER TOUGH CONDITIONS (100% DOD @ 1C AT different temperatures) FAST CHARGING/ DISCHARGING TIME (efficiently charges and discharges battery) FULLY USABLE CAPACITY (less capacity to support same power) ECOLOGICAL AND ECONOMICAL (no rare metals, better TCO with long life, recycable)

POWERFUL FEATURES Scalable energy storage 1.2 MWh Nominal capacity (per energy storage container) 15,000 cycles or 20 years Number of cycles (70% remaining capacity) 89.2% Round trip efficiency (including transformer, PCS and energy storage) BUILT TO MEET INDUSTRY STANDARDS, INCLUDING THE IEEE 1547 AND NEW UL 9540 ESS STANDARD KEY BENEFITS Safety (no thermal runaway) Performance Specific Energy Specific Power Cycle Life (life span) Cost 1

NETWORK SOLUTIONS Matching client needs with proven solutions ESSTALION ESSTALION ESSTALION ESSTALION GENERATION Modular onsite electric supply capacity Electric energy time-shift (arbitrage) TRANSMISSION Transmission upgrade deferral Transmission congestion relief ANCILLARY SERVICES Frequency regulation Spinning, non-spinning and supplemental reserves Voltage support Black start Other related uses DISTRIBUTION Distribution upgrade deferral Voltage support

ESSTALION SCHEMATICS ESS CONTAINER BATTERY MODULES BATTERY RACKS CTRL PANEL CONVERSION PLATFORM POWER AUXILIARY SERVICES CONTAINER ENERGY STORAGE SUBSYSTEM MODULE ENERGY STORAGE MODULE BMU BATTERY MANAGEMENT UNIT FOR IJ1101M BMU-HUB BATTERY MANAGEMENT UNIT HUB FOR IJ8101C Nominal capacity: 2.1 kwh Nominal voltage: 51.2 V Maximum discharge current: 50 A Cell: LFP Depth of discharge: 100% Operating voltage: 300 ~ 1,000 V Operating current: 0 ~ 100 A Detects abnormal mode and stops system Can connect module to up to 64 units Communication to host Information management of BMU LCD and push-button switch to confirm information Can connect BMU to up to 64 units 3

ENERGY & POWER PERFORMANCE Efficiency by battery design Battery LI-ION technologies POWER + LiFePO 4 (olivines) LIQUID ELECTROLYTES Li 4 Ti 5 0 12 ENERGY + LiFePO 4 (olivines) LIQUID ELECTROLYTES NATURAL GRAPHITE CATHODE ELECTROLYTE ANODE FAST CHARGE < 10 MINUTES LOW COST AND FAST CHARGE 1 HOUR 4C (15 min) New application (quick charge) LTO POWER Frequency regulation Renewable (rap control) >10 cyc/day ESSTALION products have two battery chemistries that solve two different problems: LFP solves the energy storage problem and LTO solves the power and rapid charge problem. CHARGE RATE 1C (1h) LFP ENERGY Peak shaving 1/4C (4h) Renewable (time shift) 1 cyc/day Primary reserve <1 cyc/day 1/4C (4h) 1C (1h) 4C (15 min) DISCHARGE RATE 4

ESS SCALABILITY ESSTALION provides scalability to meet current and future customer needs. It also offers utilities flexibility to alter the configuration as requirements change. EN 1 1.2 EN 1 2.4 Energy Storage 1.2 MWh 2.4 MWh Power Rating 1.2 MW 2.4 MW Footprint 98 m 2 229 m 2 Ambient Temperature -40 C to +55 C DC Voltage Range 750 to 1,000 V DC

HEALTH & SAFETY At the heart of our design A key consideration in the design, production and operation of ESSTALION is health and safety. For example, our patented LFP technology [Li (Lithium), Fe (Iron), PO 4 (Phosphate)], structure traps the oxygen, thus nullifying the risk of thermal runaway and combustion. Unlike competing products, no rare metals such as nickel or cobalt are used. Pure, thermally stable and uninflammable iron is our basic substrate. LFP OTHERS Li Fe O Li Others O P OVERCHARGE OVERCHARGE NO THERMAL RUNAWAY THERMAL RUNAWAY 6

THERMAL STABILITY LFP OTHERS 8 7 6 5 4 HEAT FLOW [W/g] 3 2 1 0-1 150 200 225 265 290 340 TEMPERATURE [ C]

CLEAN POWER Sustainability principles applied 2 TO 3 TIMES MORE CYCLES AND A MUCH BETTER CALENDAR LIFE THAN THE COMPETITION... AT FULL DOD 15,000 cycles ESSTALION storage modules continue to operate efficiently for the equivalent of 15,000 charge/discharge cycles, retaining 70% of their capacity even at this stage. This remarkable statistic points to not only important economic benefits, but to environmental advantages as well (i.e. module disposal). 20-year calendar life Whether you want to do peak shaving application at full charge or discharge two times per day, ESSTALION will last 20 years without the need to change your system. For those who use the system as a backup for reserve application or for transmission or distribution deferral at low cycle, the system will still be usable and maintain its capacity after 20 years. 99% recyclable Thanks to our patent pending innovative recycling process, we are able to recover and reuse 99% of all active battery materials, a key environmental benefit. The system s inherent design and function promotes many environmental benefits, including the use of materials with low or no toxicity and minimizing end-of-life handling. We also avoid the use of limited raw materials, helping mitigate resource scarcity. 8

STABLE FOR DAILY USE UNDER VARIOUS AMBIENT TEMPERATURES 110% 100% 20 years DISCHARGE CAPACITY RETENTION 90% 80% 70% 60% 50% 40% 30% 20% 10% 0% 1C CHARGE 1C DISCHARGE CYCLE DATA (SOC 0 100% FULL CYCLING) 23 C 70% @ 15,000 cycles 0 2,000 4,000 6,000 8,000 10,000 12,000 14,000 16,000 NUMBER OF CYCLES

CREDIBLE PARTNERS Trust in experience and innovation Customers can have confidence that, with ESSTALION, they are working with a partner that has unmatched technical capabilities and utility experience. Our system was developed initially through a joint venture between Hydro-Québec s research institute one of the largest and finest facilities in the World and Sony, a world-leading innovator in batteries. Together, Hydro-Québec and Sony hold thousands of patents that underpin our global energy infrastructure. ESSTALION will continue to build on this legacy with a sharp focus on continuous research and development in energy storage technologies. ESSTALION, building Energy Storage Systems that drive Energy, Safety and Sustainability. Contact: E-mail : ess.systems@esstalion.com Tel : 1 450-925-1200 Esstalion 1804 boul. Lionel-Boulet, Varennes QC Canada J3X 1S1 2016G1502A