MEMBER PROSPECTUS
THE DEFINITIVE VOICE OF ENERGY STORAGE SHAPE THE MARKET
DEMONSTRATE LEADERSHIP ACCESS EXPERTS
NETWORK WITH MARKET MAKERS SUPPORT DEPLOYMENT
THE LARGEST ENERGY STORAGE ASSOCIATION TRANSFORMING CALIFORNIA AND THE WEST California’s energy storage market will continue to grow rapidly as California strives to meet its ambitious climate goals.
ABOUT CESA
The mission of CESA is to advocate for energy storage as a key resource to achieve a more affordable, efficient, reliable, safe and sustainable electric power system for all Californians.
OUR APPROACH TO ENERGY STORAGE MARKET TRANSFORMATION
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CESA is technology and business model neutral, advancing all forms of energy storage
CESA supports and actively promotes a competitive and transparent marketplace
CESA supports collaborative engagement with all stakeholders and energy storage champions
MARKET DEVELOPMENT BENEFITS
BUSINESS DEVELOPMENT BENEFITS
• Shape policy through organized working groups
• Receive personal introductions to other CESA members
• Access industry experts
• Receive real-time notices of Requests for Proposals
• Educate and influence key stakeholders • Receive market intelligence via policy update calls, webinars, and events
• Save money through avoided regulatory costs
• Join exclusive CESA networking events
• Elevate your brand awareness as an industry leader
• Access CESA’s Member Newsletter for timely policy updates, market insights, and engagement opportunities
LEARN MORE About Business and Market Development Benefits 2
CALIFORNIA ENERGY STORAGE ALLIANCE
CESA MEMBERS ARE LEADERS ACROSS THE ENERGY STORAGE ECOSYSTEM BOARD OF DIRECTORS
GENERAL MEMBERS Ameresco Avantus CATL Customized Energy Solutions EDF Renewables ENGIE North America esVolta FlexGen Fluence
ForeFront Power Form Energy IOWN Energy LG Energy Solution Longroad Energy MN8 Energy New Leaf Energy Nexamp
Prologis Energy RWE Clean Energy Southern Power Stoel Rives Strata Clean Energy Sumitomo Electric Industries Sunrun
The Hiller Companies Trina Storage VC Renewables Vesper Energy Wilson Sonsini
e-Zinc Fourth Power
Gridmatic H2
Nostromo Energy Redeux Energy
AFFILIATE MEMBERS Allen Matkins
START-UP MEMBERS Eddy Energy EnerSmart Storage
ASSOCIATE MEMBERS
MEMBER PROSPECTUS
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SHAPE POLICY OUTCOMES
IMPACT YOUR BOTTOM LINE CESA DELIVERS TOP-TIER STAKEHOLDER ENGAGEMENT To execute our mission, CESA ensures that member interests are represented and appropriately considered in the key forums shaping California’s electric grid:
California Energy Commission
California Independent System Operator
California Legislature
California Public Utilities Commission
Federal Energy Regulatory Commission
CESA channels member expertise and priorities into regulatory advocacy through its Working Groups: The SAFETY & PERMITTING WORKING GROUP convenes CESA members and stakeholders to advance best practices for energy storage safety, system design and siting and permitting. The group tracks updates to fire codes, safety standards, and research developments, while coordinating industry input into regulatory and code-development processes. Its work helps ensure safe deployment of storage technologies while supporting continued market growth. The group also tracks and engages in land use and permitting topics related to storage, including local ordinance development and zoning code updates. The CALIFORNIA INDEPENDENT SYSTEM OPERATOR (CAISO) WORKING GROUP engages in wholesale market design and operational rules that shape how energy storage is dispatched and compensated across the Western grid. Members collaborate to improve market modeling of storage operations, ensure markets reflect real-time opportunity costs, and address issues such as uplift payments, hybrid participation, and state-of-charge management.
The RESOURCE ADEQUACY (RA) WORKING GROUP focuses on California’s capacity planning framework and policies that determine how storage resources contribute to grid reliability. Members engage on reforms to capacity accreditation, resource availability rules, and procurement structures at both CAISO and CPUC. Key topics include hybrid capacity methodologies, hourly capacity frameworks, and long-duration storage accreditation, all of which directly influence the value and role of storage in meeting reliability requirements.
The INTEGRATED RESOURCE PLANS (IRP) WORKING GROUP engages in California’s long-term planning process to ensure energy storage capabilities are accurately reflected in system modeling and procurement decisions. Members review modeling assumptions, resource valuation methods, and planning scenarios that determine least-cost portfolios for meeting reliability, emissions, and clean energy goals. This work helps ensure that storage resources are appropriately considered and valued in future grid planning and procurement strategies.
The DISTRIBUTED ENERGY RESOURCES (DER) WORKING GROUP advocates for policies and programs that expand deployment and compensation opportunities for distribution-connected storage, spanning both front-of-meter and behind-the-meter systems. The group works to improve interconnection processes and strengthen demand response frameworks. It also pursues funding for distributed energy programs and works to reduce unnecessary regulatory burdens on distributed storage resources. The LEGISLATIVE WORKING GROUP (BOARD MEMBERS ONLY) enables CESA Board Members to guide the organization’s legislative strategy and policy priorities. Working with CESA staff and Sacramento lobbyists, the group evaluates proposed legislation, develops advocacy strategies, and educates policymakers about the value of energy storage in supporting California’s reliability and clean energy goals. 4
CALIFORNIA ENERGY STORAGE ALLIANCE
PLUG INTO OUR INDUSTRY
CONNECT WITH THE CESA NETWORK CESA provides the conduit to foster meaningful networking and business development opportunities in the storage industry. Join CESA to build relationships with our 60 members, and connect with key energy storage buyers such as IOUs, CCAs, Munis, and more.
2027 CESA EVENTS CALENDAR MARKET DEVELOPMENT FORUM & CESA MEMBER MEETING
Fall 2027 | Location TBD This two day event provides cutting-edge sessions, real-world insights, and meaningful networking that will help shape CA’s energy future.
LOBBY DAY
Spring 2027 Sacramento, CA
SPRING SOCIAL & NETWORKING EVENT Spring 2027 Location TBD
EDUCATIONAL WEBINARS
CESA EXPANDED ITS REACH DIGITAL IMPACT
• Hosted LDES and BESS Safety Webinars • 5,400+ Monthly Newsletter Recipients • 4,700+ LinkedIn Followers
CESA IN THE NEWS
Ongoing - Online
BOARD OF DIRECTORS RETREAT
Fall 2027 Location TBD
Find More Events On Our Website
CESA staff connect with industry leaders at the 2026 CalCCA Annual Conference.
GAIN BRAND RECOGNITION THROUGH EVENT SPONSORSHIPS
MEMBER PROSPECTUS
CESA’s Scott Murtishaw joins Governor Gavin Newsom and state energy leaders as California surpasses battery storage expectations.
Contact the CESA Marketing Team To Learn About Opportunities
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MEMBERSHIP BENEFITS
AFFILIATE GENERAL & START UP
ADVOCACY & MARKET DEVELOPMENT
BOARD
Contribute to the CESA Political Action Committee to support energy storage champions Provide input on CESA regulatory scope through annual Policy Priority Survey Join CESA Working Groups to shape market outcomes at the CPUC, CAISO, CEC, CA Legislature, and FERC* Direct CESA’s strategic growth, scope, and organizational governance through Board Meetings and Annual Planning Retreat Join the Legislative Working Group to direct CESA’s legislative advocacy *Start Up and Affiliate members have limited access to working groups as shown on pg. 8.
MARKET & REGULATORY INTELLIGENCE FOR CALIFORNIA, FEDERAL, INTERNATIONAL Receive timely notice on public Requests for Proposals (RFP) and other procurement opportunities Receive comprehensive market and industry updates through our Monthly Policy Update Attend educational webinars on relevant topics Receive advance (pre-public) notification of upcoming Requests for Proposals, when possible
BUSINESS DEVELOPMENT & NETWORKING Build important relationships through exclusive CESA events, meetings, and policy working groups Receive discounts to partner events Enjoy custom introductions to key industry stakeholders, as appropriate Represent CESA in key face-to-face meetings with utility and government decision makers
ACCESS CESA INDUSTRY EXPERTS Interface with CESA experts through routine communications and working groups Receive additional personalized attention regarding CESA policy issues from CESA leadership
BRAND PROMOTION AS ENERGY STORAGE THOUGHT LEADER New members receive announcement of membership on social media and Monthly Policy Update Receive brand visibility at CESA events and through CESA marketing materials, website, and regulatory filings Leadership recognition on all CESA marketing and events platforms (MDF, webinars, website, social media)
MONETARY SAVINGS Save on regulatory activity costs through avoided governmental affairs and in-house legal staff expenses Share costs to pursue your policy priorities through standing working groups or CESA Special Projects
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CALIFORNIA ENERGY STORAGE ALLIANCE
ADVOCACY THAT YIELDS RESULTS
GROW CESA helped secure a 6 GW procurement order without a proposed 50% cap on energy storage, preserving storage’s ability to compete for California’s future capacity needs. The order also establishes a 1,500 MW long-duration energy storage procurement requirement by 2032
CESA continues to advocate for procurement frameworks that recognize the reliability and clean energy value storage provides.
SHAPE
DELIVER CESA turns sustained policy engagement into tangible results for its members. Recent successes include establishment of a long-duration storage accreditation framework, adoption of distributed storage program guidelines incorporating CESA recommendations, and progress toward removing unfair battery penalties. These results reflect years of consistent engagement with the CPUC, CAISO, CEC, Legislature, and local policymakers.
CESA is helping shape the market rules that determine how storage is modeled, dispatched, and compensated. Sustained advocacy helped secure CAISO’s commitment to model battery physical limits and advance fairer default energy bids, market power mitigation, and congestion hedging rules. CESA also continues to advocate for reforms that appropriately value storage’s contribution to grid reliability.
ADVOCATE
CESA staff and members with Le-Quyen Nguyen, Deputy Executive Director for Energy and Climate Policy, CPUC, during 2026 Lobby Day.
CESA actively represents the storage industry before the Legislature, state agencies, and local governments. In 2026, CESA tracked 32 pieces of legislation and expanded coalition advocacy with allied clean energy organizations. CESA also engaged with communities across California to promote reasonable safety and permitting policies, helping advance workable local ordinances and oppose unnecessary moratoriums.
MEMBER PROSPECTUS
California Energy Commissioner Noemí Gallardo speaks at CESA’s 2026 Market Development Forum alongside other energy leaders. 7
POWER UP YOUR INFLUENCE IN 2027
Support CESA through Annual Memberships MEMBERSHIP CATEGORY
ANNUAL MEMBERSHIP DUES
ACCESS TO SAFETY WORKING GROUP
ACCESS TO ADDITIONAL WORKING GROUPS
Board of Directors
$63,000
Included
Included
$26,000
Included
Included
$21,000
Included
Included
$11,000
Included
Limited
$5,000
Included
Limited
General - Large
($100M+ annual revenue)*
General - Medium
(<$100M annual revenue)
Affiliate**
(EPC or standards/testing or any orgs with <$15M annual revenue.)
Start Up
(<$40M raised, if applicable, and <$2M annual revenue.)
GET IN TOUCH To Discuss Membership Options: info@storagealliance.org *For CESA membership purposes, annual revenues are revenues earned in the United States from electricity generation and storage related business activity. **EPC, battery management, market analysis, BESS component manufacturer, battery standards/testing, and other specialized consultant organizations are categorically eligible for Affiliate membership. Any organization earning <$15M in annual revenue is also eligible. Please note that for the 2027 membership year, 10% of your total dues may not be deductible as a business expense due to the extent CESA engages in lobbying activities.
JOIN THE BOARD OF DIRECTORS CESA Board membership is the most effective way to expand your influence and access key information impacting your energy storage business. EXCLUSIVE BENEFITS INCLUDE:
• Directly Shape CESA Priorities • Receive breaking news on legislation and contribute to CESA’s legislative strategy • Custom Introductions to Business Prospects • Invitation to Annual Board Strategic Planning Retreat • Attend Exclusive Meetings with California’s Energy Leaders
CONTACT US About the Board of Directors 8
CALIFORNIA ENERGY STORAGE ALLIANCE