"CESA membership not only provides us with extensive market and regulatory intelligence, but also helps us significantly with market development in California.  We also value our access to CESA's broad network of stakeholders.

Erica He, VP of Strategic Business Development, Sumitomo Electric USA

Board Members

Board Members represent the highest tier of CESA membership. Each organization at the Board Member level is expected to guide decision-making and set the regulatory/legislative agenda within CESA, designate a representative from the organization to attend Board meetings, and represent the energy storage industry as leaders in California.

Founded in 2009, 8minutenergy Renewables is the nation's largest independent developer of solar PV projects. To date, 8minutenergy has nearly 5.5 GW under development in North America, been awarded 1.5 GW in power purchase agreements, and is developing some of the largest solar plants in the world, including the 800 MW Mount Signal Solar Farm in California. 8minutenergy has an unmatched ability to produce affordable clean energy and to deliver strong financial returns on utility-scale solar projects. 

Advanced Microgrid Solutions (AMS) installs advanced energy storage systems in buildings to lower energy costs for consumers and provide clean, instant load reduction to electric utilities. AMS is committed to building a more efficient, more resilient electric grid.

AltaGas, a Canadian corporation, is a North American diversified energy infrastructure business with a focus on owning and operating assets to provide clean and affordable energy to its customers. In August 2016, AltaGas signed a 10-year agreement with Southern California Edison (SCE) to build, own, and operate a 20-MW energy storage system at its Pomona facility. This is among the largest battery storage projects in North America.

Demand Energy, a wholly owned subsidiary of Enel Green Power North America, Inc., has developed a best-in-class Distributed Energy Network Optimization System (DEN.OSä) that maximizes the economic returns of behind-the-meter storage systems alone, or in combination with distributed generation (DG). The company provides a turnkey solution (hardware, software and services) that ties together modeling, design and simulation with installation and operational monitoring, control, and financial optimization, to deploy storage-plus-DG systems at speed and scale. The DEN.OS software platform was designed as a scalable end-to-end solution that delivers differentiated value across the entire project life cycle, able to support utility-side, behind-the-meter and microgrid projects.

East Penn Manufacturing Company, a privately-held company founded in 1946, operates one of the largest single-site, lead-acid battery manufacturing facilities in the world. The company produces high quality batteries and battery accessories for the automotive, commercial, marine, industrial, stationary, and specialty markets. East Penn manufactures the Deka UltraBattery® at its state-of-the-art facility in Lyon Station, PA.

Ecoult delivers complete energy storage solutions and modules powered by the breakthrough Deka UltraBattery® technology – a hybrid lead-acid energy storage device containing both an Ultracapacitor and a battery in a common electrolyte. Ecoult’s solutions manage intermittencies, smooth power and shift energy in a safe, reliable and environmentally sound way – the energy storage of choice for grid ancillary services, wind and solar farms, remote microgrids, dual purpose and diesel microgrid efficiency applications. 

Fluence Energy, a Siemens and AES company, is a global energy storage technology solutions and services company that combines the agility of a technology company with the expertise, vision, and financial backing of two industry powerhouses. Established in 2018, as the successor to industry pioneers AES Energy Storage and Siemens energy storage, Fluence's goal is to create a more sustainable future by transforming the way we power our world. The company offers proven energy storage technology solutions designed to address the diverse needs and challenges of customers in a rapidly transforming energy landscape, providing design, delivery and integration in over 160 countries. Fluence works closely with customers during every step of their journey and provides advisory, financing, and project lifecycle services. To date, Fluence's teams have deployed or been awarded a market-leading 56 projects with a total capacity of 485 MW in 15 countries.

LG Chem, founded in 1947, is a worldwide leading manufacturer of Li-Ion and Li-Ion Polymer batteries. LG Chem has an established global footprint, including a strong U.S. presence, and its Li-Ion batteries have been selected by major manufacturers and OEMs worldwide for consumer electronics, electric vehicle, and utility grid storage applications.

Lockheed Martin provides safe, cost-effective, bankable, and intelligent energy storage systems for applications from behind-the-meter C&I to wholesale interconnected storage.  Our turn-key product offerings for the commercial energy storage sector utilize a range of chemistries to deliver least-cost, best-fit solutions to meet our customers’ energy storage needs.  Lockheed Martin is also developing a high-performance low-cost flow battery, based on a proprietary chemistry, that is tailored for long-duration energy storage applications.

LS Power, founded in 1990, is an independent power company with offices in New York, New Jersey, Missouri and California. LS Power is a developer, owner, operator and investor in power generation and electric transmission infrastructure throughout the United States. Since its inception, LS Power has developed, constructed, managed or acquired more than 28,000 MW of competitive power generation and 470 miles of transmission infrastructure, for which it has raised over $27 billion in debt and equity financing. In the Western US, LS Power has successfully developed, constructed and is now operating two large scale Solar Photo Voltaic projects, Centinela Solar Energy (170 MW) and Arlington Valley Solar Energy (125 MW).

Magnum CAES is a developer of a compressed air energy storage project at the Western Energy Hub. This project will be one of three CAES facilities in operation worldwide, and will store renewable generation that will produce reliable, clean, and dispatchable electricity. 

NextEra Energy Resources is the competitive energy subsidiary of NextEra Energy, Inc., a Fortune 200 company and one of the nation’s largest clean energy providers. NextEra Energy Resources is primarily awholesale power generator, operating power plants and selling the output to utilities, retail electricity providers,power cooperatives, municipal electric providers and large industrial companies. NextEra Energy Resources has a portfolio of facilities, totaling more than 16,700 net megawatts of generatingcapacity in the United States and Canada. Approximately 95 percent of NextEra Energy Resources’ electricity is derived from clean or renewable sources, including wind, solar, hydro, natural gas and nuclear energy.

NEXTrackera Flex company, advances the power plant of the future with solar tracker and energy storage innovations to increase performance and reduce costs for solar power plants. As the #1 tracker supplier worldwide with over 11 GW of trackers sold, NEXTracker is globally recognized for delivering advanced and reliable PV solutions for hundreds of projects accross five continents. Headquartered in the San Francisco Bay Area, the Company has offices in India, Europe, China, Latin America, and Austrialia. For more information, visit: and following the Company on Twitter @NEXTracker. 

Founded in 1911, SNC-Lavalin is a global fully integrated professional services and project management company and a major player in the ownership of infrastructure. From offices around the world, SCN-Lavalin's employees are proud to build what matters. Our teams provides comprehensive end-to-end project solutions - including capital investment, consulting, design, engineering, custruction, sustaining capital and operations and maintenance - to clients in oil and gas, mining and metallurgy, infrastructure and power. On July 3, 2017, SNC-Lavalin acquired Atkins, one of the world's more respected design, engineering and project management consultancies. 

SolarCity is a national leader in clean energy services, making clean energy available to homeowners, businesses, schools, non-profits and government organizations at a lower cost than they pay for energy generated by burning fossil fuels like coal, oil and natural gas. SolarCity installs systems to the highest engineering standards while making the switch simple for customers. SolarCity has revolutionized the way energy is delivered by giving customers a cleaner, more affordable alternative to their monthly utility bill.

Southwest Generation is a growing, privately held, independent power producer based in Denver, CO. On behalf of its owners and partners, Southwest Generation develops, owns, and operates utility-scale generation that is competitive, flexible, and clean. Its platform currently consists of 900 MW of generation in California, Colorado, and New Mexico. Southwest Generation's flexible power generation helps keep electricity flowing reliably to homes and businesses across the Southwest. 

Wellhead Electric, with its affiliates, develops, owns and operates nine power generation facilities.  WPower, Wellhead’s women-owned business affiliate, currently owns one of the operating projects and two to-be-built solar projects.  Over 400 MW from Wellhead-affiliated projects currently are providing California’s electrical system with flexible reliable sources of energy that support the grid and the transition to a cleaner energy future.  Wellhead is also developing solar and storage projects critical to achieving the cleaner energy grid.  Since starting business in 1982, Wellhead has developed over 20 generating projects.


General Members

General Members are critical to the growth of CESA. These members are less involved in the overall steering and decision-making duties of CESA, but recognize the need for strong advocacy in renewable energy storage management.

American Honda Motor Company is a North American subsidiary of Honda Motor Company. The company combines product sales, service, and coordination functions of Honda in North America, and is responsible for distribution, marketing, and sales of Handa and Acura brand automobiles, Honda power sports products, and Honda power equipment products. 

BrightSource Energy designs, develops, and deploys solar thermal technology to produce high-value electricity and steam for power, petroleum, and industrial-process markets worldwide. Combining energy storage with concentrating solar thermal power transforms solar energy into a flexible, dispatchable resource. Deployed at utility scale, it enables power generators to deliver clean energy, reliably and cost-competitively.

Brookfield Renewable operates over 200 hydropower facilities and 11 wind farms, totaling approximately 6,000 megawatts of installed capacity. Its portfolio is diversified across 12 power markets in Canada, the United States and Brazil and generates enough electricity from renewable resources to power more than three million homes on average each year.

Con Edison Development develops, owns and operates renewable energy and energy infrastructure projects and currently has over 400 MW of projects operating in California, Massachusetts, New Jersey, Rhode Island, and Pennsylvania. The company is an unregulated subsidiary of Consolidated Edison, Inc.

Customized Energy Solutions (CES) is committed to promoting economic development through the advancement of transparent, efficient, and nondiscriminatory wholesale and retail energy markets.  CES supports clients by delivering scalable hosted software platforms to provide end-to-end management and optimization of assets creating profitable participation in the national energy markets today and into the future.

Doosan GridTech delivers control system software and power system engineering services that help utilities integrate distributed energy resources into their grid.

Eagle Crest Energy is developing an advanced technology, 1300 MW closed-loop pumped storage project at a brownfield iron mine site in Southeastern California (Riverside County). The Eagle Mountain project is ideally located to support increased renewable development in Southern California.

EDF Renewable Energy is a leading U.S. independent power producer with more than 25 years of expertise in the renewable industry, covering all range of services from project development, management to operations and maintenance.  EDF Renewable Energy specializes in wind and solar photovoltaic with presence in other segments of the renewable energy market: biogas, biomass, hydro, marine energy and energy storage solutions.  The company develops, constructs, operates and manages renewable energy projects throughout the United States for its own accord as well as for third parties.  EDF Renewable Energy’s portfolio consists of 4 gigawatts of developed projects with 1.9 gigawatts of installed capacity. EDF Renewable Energy is the U.S. subsidiary of EDF Energies Nouvelles. EDF Energies Nouvelles is the renewable energy arm of the EDF group, the leading electricity company in the world.

Founded in 1886, GAF is the leading roofing manufacturer in North America. As a member of the Standard Industries family of companies, GAF is part of the largest roofing and waterproofing business in the world. The company's products include a comprehensive portfolio of roofing and waterproofing solutions for residential and commercial properties as well as for civil engineering applications. The full GAF portfolio of solutions is supported by an extensive national network of factory-certified contractors. GAF continues to be the leader in quality and offers comprehensive warranty protection on its products and systems. The company's success is driven by a commitment to empowering its people to deliver advanced quality and purposeful innovation. 

Green Charge Networks has been designing and deploying commercial energy storage since 2009, with systems installed throughout the United States. Backed by ENGIE, the largest independent power producer in the world, Green Charge’s mission is to use energy storage to power the world efficiently and sustainably. Our team is comprised of top energy storage industry experts, who provide performance-based solutions to optimize the value of energy for our customers. Our ecosystem of solar, EV charging, and energy efficiency partners allows our customers to combine energy storage and renewables easily and economically. Delivering all these capabilities with the least possible risk is the Green Charge Power Efficiency Agreement—a shared-savings model that puts the power of energy storage in customers’ hands with no capital outlay.


Greensmith systems control distributed energy storage and its many applications, including renewable integration, EV charging, and ancillary services. With twenty systems installed since 2008, Greensmith is a rapidly growing leader in utility and end-user solutions. Greensmith specializes in battery operating systems and software to deploy modular battery systems with flexibility and control. These systems support multiple battery manufacturers, enabling Greensmith to remain "battery agnostic" and responsive to a changing battery market.

Johnson Controls is a global diversified technology and industrial leader serving customers in more than 150 countries. Our 170,000 employees create quality products, services and solutions to optimize energy and operational efficiencies of buildings; lead-acid automotive batteries; advanced batteries for hybrid/electric vehicles and stationary applications; and interior systems for automobiles.

Lendlease is a leading international property and infrastructure group with operations in Australia, Asia, Europe, and the Americas. Our integrated approach means we harness the expertise in infrastructure, design, development, investments and management to deliver a project from conception to completion. 

Mercedes-Benz Energy offers innovative energy storage solutions for homes, companies, and utilities to manage resources more efficiently and sustainably. Using durable lithium-ion batteries produced in Germany, Mercedes-Benz Energy storage systems can optimize solar consumption, reduce expensive peak electric loads, provide backup power, and offer a variety of grid services. Based on the same automotive-grade battery technology used in Mercedes-Benz electric and plug-in hybrid vehicles, our storage solutions meet the highest standards of quality, reliability, and safety..

National Grid is one of the largest investor-owned energy companies in the world, covering Massachusetts, New York, Rhode Island, and the UK. The company develops and installs energy storage systems in the US and the UK. 

NEC Energy Solutions, formerly A123, is an industry leader in advanced energy storage, with more than 110MW operating on the grid all worldwide.  It develops and manufactures smart energy storage solutions for electric grid, backup power and lead-acid replacement applications with system integration expertise focusing on high performance, efficiency, safety and reliability.  

NGK Insulators, Ltd. is a Japanese company that primarily produces insulators but also produces its worldwidely-known sodium-sulfur (NaS) batteries developed in cooperation with TEPCO for grid storage applications in in Japan and the United States.NGK's battery systems can be used for both peak shaving, load leveling, emissions reductions, and as emergency power supplies.

NICE America Research, Inc. was established in 2016 as a subsidiary of the National Institute of Clean and Low-Carbon Energy (NICE), an R&D institute affiliated with the Shenhua Group. Located in the Silicon Valley, NICE America Research will promote the implementation of clean energy development strategy, including energy storage. 

NRG Energy is leading a customer-driven change in the U.S. energy industry by delivering cleaner and smarter energy choices, while building on the strength of the nation’s largest and most diverse competitive power portfolio. A Fortune 500 company, we create value through reliable and efficient conventional generation while driving innovation in solar and renewable power, electric vehicle ecosystems, carbon capture technology and customer-centric energy solutions. Our retail electricity providers – Reliant, Green Mountain Energy, Energy Plus and NRG Residential Solutions – serve more than 2 million residential and commercial customers throughout the country.

Parker Hannifin and its Global Energy Grid Tie Division has a broad installed base of energy storage technology, including grid tie inverters and complete outdoor PCS solutions and battery containers, using Parker precision cooling. With annual sales exceeding $13 billion in FY2012, Parker Hannifin is the world’s leading diversified manufacturer of motion and control technologies and systems.

Range Energy Storage Systems LLC offers California utilities low-cost, long-duration energy storage with the operating capabilities they need to integrate high quanitites of renewables. Range plans to construct, own, and operate a 160-320 MW compressed air energy storage (CAES) facility at the site of the soon-to-be-retired Internountain coal plant (IPP). The project will be developed and managed by the company's co-owners, Sammons Enterprises, Inc. and Duke-American Transmission Company, LLC (DATC).

Recurrent Energy is one of North America’s largest solar project developers. Since the company’s founding in 2006, Recurrent Energy has developed and sold more than 520 MWac of solar PV projects, won more than 1.1 GWac of power purchase agreements, and secured more than $4B of project debt and equity financing. Recurrent Energy is currently developing utility-scale solar PV projects across North America in key solar markets, including California and Texas, with a solar project pipeline exceeding 3.3 GWac.

RES (Renewable Energy Systems) is a fully-integrated renewable energy company that develops, constructs, owns, and operates projects across North America, Europe, and Australia. Globally, RES has constructed or has under construction more than 12,000 MW of wind, solar, and storage projects. RES operates across the entire value chain except as battery & PCS OEM in delivering optimized, turnkey storage and solar+storage solutions to utilities.

Sharp Labs, headquartered in Camas, WA, is a cornerstone of Sharp Corporation's global research and development network where fundamental and applied research feeds Sharp's vast appetite for technologies that not only are innovative, elegant and practical - but that by design improve the quality of life for people throughout the world.

Stem provides Intelligent Energy Storage Systems that reduce power costs, increase operational efficiencies, maximize renewable generation value and reduce greenhouse gas emissions.

Sumitomo Electric Company, since its founding in 1897, has developed and delivered many new technologies and products through innovative R&D activities based on the prowess of its engineering and production capabilities in electric wires and power cables. The Sumitomo Electric Group provides superb products and services in five core business segments: "Automotive", "Information & Communications", "Electronics", "Electric Wire & Cable, Energy" and "Industrial Materials".

Sunrun is the largest dedicated residential solar company in the United States that pioneered the use of solar as a service for residential customers. In March 2016, Sunrun launched its BrightBox product, its first solar energy storage offering for homeowners.

Viridity Energy is an Ormat company that defines the next generation of demand response and energy management. Viridity's extensive power market and facilities management experience, coupled with breakthrough technology, expands the value of the energy assets for its customers. Viridity's management team has unsurpassed experience managing wholesale power markets, green power markets, and operating facilities on the customer side of the meter.

Younicos is a global leader for intelligent storage and grid solutions based on battery technology. Our clients benefit from our technical expertise, commercial know-how and in-depth experience based on nearly 100 megawatts installed in more than 20 energy storage projects worldwide.


Series A Members

Series A Members are critical to the growth of CESA and represent the future of the energy storage industry. These members are less involved in the overall steering and decision-making duties of CESA, but recognize the need for strong advocacy in renewable energy storage management.

Able Grid Energy Solutions is a utility-scale energy storage developer backed by leading energy investors. In partnership with utilities, communities, technology providers, and financing partners, Able Grid is developing low-cost energy storage assets that advance a low-carbon future. 

Amber Kinetics, Inc. was founded in anticipation of the enormous worldwide demand for competitively priced, safe, environmentally sustainable, multi-hour energy storage. Our mission is to accelerate global adoption of energy storage by commercializing our advanced, cost-disruptive flywheel technology to provide a lower cost and higher performing alternative to fossil fuel generation.

Brenmiller Energy, based on its unique storage technology, provides sustainable energy solutions. Our unique integrated design minimizes equipment cost and offers a cost-competitive storage media, significantly reducing storage prices compared to other alternatives. The company was founded in 2012 by Avi Brenmiller, former CEO of Siemens CSP and Solel.

Bright Energy Storage Technologies is commercializing novel energy storage and generation technologies. Their technology offers attractive economics for meeting requirements of a wide range of retail and wholesale grid-connected applications across a broad power- and duration range.

ElectrIQ Power is a Palo Alto, CA-based energy management company developing hardware and software technologies for the cleantech space. ElectrIQ's all-in-one energy storage and energy management solution features a powerful user dashboard, advanced-realtime analytics and operational flexibility that helps homes and building owners control energy usage, save money, and optimize onsite renewables.

eMotorWerks provides valuable grid management services - such as demand response, frequency regulation, peak shaving, local load balancing, and many others - that help utilities and ISOs better manage the grid volatility and prepare for and fully leverage accelerating EV adoption. Low manufacturing and operating costs of our company's networked assets support high ROI and short payback periods on initial capital investments.

Energport is a group of vibrant, enthusiastic, and talented engineers with extensive experience in energy storage system design and development. Energport is a company composed of individuals from different backgrounds, but strives for a shared goal to bring the world a more resilient, efficient, and cleaner energy future with its state-of-the-art energy storage systems.

Energy Storage Systems, Inc. (ESS) has developed and markets a cost-effictive energy storage system that combines an abundant and non-toxic iron electrolyte with our patented flow cell design. The resulting combination of high performance with low cost makes it ideally suited for commercial and utility-scale renewables integration, demand management and backup power.

Geli provides software and business solutions to design, connect, and operate energy storage and microgrid systems. Geli’s suite of products, including Geli ESyst, Geli EOS, & Geli GENI, enable developers, OEMs, financiers, and project owners to deploy bankable energy storage systems that deliver energy resiliency, customer savings, and investor returns.

Gridscape Solutions is a software and service company that specializes in designing and developing a broad range of smart energy solutions for utilities, manufacturers and other enterprises. Our core competency is to leverage the right technological innovations and provide leadership to design, manage and implement turnkey energy solutions for our worldwide clients. Our solutions not only bring operational efficiency and savings to our customers but also create new sources of revenue.

Gridtential Energy is developing an advanced lead-acid battery that utilizes semiconductor tools & manufacturing techniques to improve performance and reduce cost.

IE Softworks Cold Battery technology turns consumer and commercial refrigeration devices into aggregated cost effective thermal storage batteries for peak load shifting. We do this at 1/10th the cost of traditional grid battery energy storage to help meet and exceed AB2514 mandates. Our patented control algorithm can repeatedly and consistently shift 16,500 MWh of peak energy demand each day in California with no intervention or impact to the end user. Our unique demand management solution will allow utilities to reduce asset investment to meet peak reliability requirements, participate in demand response services as an aggregate service provider, reduce energy acquisition costs and provide an incentive for customers to move to time of use tariffs.

Iteros is a San Diego-based company on a mission to enable a smarter, more reliable, more sustainable energy grid by providing energy management software that makes it easier to integrate, operate, and manage technologies like renewable energy resources and energy storage. Our comprehensive platform allows our users to qualify and size energy projects, rapidly commission equipment and apply complex controls, and manage one installation site ot their entire portfolio through customizable dashboards and reporting.

Sovereign Energy Storage, LLC is an independent developer of renewable energy and energy storage projects for utility-scale applications. The team specializes in project origination, financial modeling, technical due diligence, contract negotiations, and project financing with a focus on opportunities in the Western United States.

STOREME, Inc. specializes in software integration for companies working with the California Independent System Operator (CAISO), facilitating real time notifications, to compliance, to end of month settlements, and processes in between.

Swell Energy is a Venice, CA-based company specializing in the marketing, sales, installation, and financing of intelligent home energy storage solutions. Smart home batteries from Swell empower homeowners to ensure clean, secure, and affordable power for their homes.