Solar-Plus-Storage Market Size Worth USD 68.89 Billion by 2034 | CAGR: 23.4%

The global Solar-Plus-Storage Market size is expected to reach USD 68.89 billion by 2034, according to a new study by Polaris Market Research. The report “Solar-Plus-Storage Market Share, Size, Trends, & Industry Analysis Report By Installation Type, By Grid Connection, By Storage Technology, By Coupling Architecture, By Usable Discharge Duration, and By Region; Market Forecast, 2026–2034” offers a detailed assessment of market size, segment performance, regional trends, and the competitive landscape.

The global Solar-Plus-Storage Market, valued at USD 10.35 billion in 2025, is projected to register a CAGR of 23.4% from 2026 to 2034. Growing use of long-term power purchase agreements that require firm renewable supply is encouraging utilities, independent power producers, and commercial buyers to specify batteries within new solar projects.

Recent project activity across Europe and Australia also reflects the shift toward integrated solar and battery supply. In October 2026, Canadian Solar's e-STORAGE signed an agreement to supply and commission a 100 MW/200 MWh battery energy storage system for OX2's Muswellbrook solar-plus-storage site in Australia. The agreement highlights the growing role of established solar manufacturers in supplying battery systems for hybrid projects. In October 2026, Zelestra and EDP agreed two new hybrid power purchase agreements in Spain, adding 181 MWdc of solar capacity and 462 MWh of battery storage to their existing partnership. The agreements indicate that utilities and power producers are increasingly contracting solar and storage as a combined source of renewable electricity.

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Project financing for co-located solar and battery assets is also gaining traction in mature markets. In October 2026, OnPath Energy reached financial close on the Common Farm Solar Park in the UK, its first co-located project, which combines a 49 MW solar farm with a 50 MW/100 MWh battery energy storage system. The financing separates the offtake arrangements for the solar and storage assets, which illustrates how developers are structuring hybrid projects to secure debt funding. In September 2026, JA Solar launched the JA Roadshow 2026 in Europe, showcasing integrated solar and energy storage solutions at various locations across the region.

Top of FormSolar-Plus-Storage Market Report Highlights

Utility-scale installations dominated the market in 2025 with a 77.00%share, as utilities and independent power producers increasingly pair batteries with new solar plants to meet firm-capacity commitments under long-term power purchase agreements.
The commercial and industrial segment is anticipated to register the fastest growth, at a CAGR of 29.40% from 2026 to 2034, as businesses install batteries to lower electricity bills and protect operations from price volatility and supply interruptions.
Lithium iron phosphate (LFP) batteries led the storage technology segment in 2025, as a mature manufacturing base and a lower cost per kilowatt-hour have made the chemistry the preferred choice for new hybrid projects.
Flow batteries are expected to expand at a notable pace during the forecast period, as their long operating life and minimal capacity fade make them attractive for projects planning multi-hour storage.
DC-coupled systems dominated the coupling architecture segment in 2025, as developers of new plants favor a single integrated design that lowers balance-of-system costs and simplifies commissioning.
AC-coupled systems are anticipated to grow steadily, as the large installed base of rooftop and commercial solar systems offers a ready opportunity for battery retrofits.
The 2 to under 4 hours segment held the largest share of the usable discharge duration segment in 2025, as it offers a balanced trade-off between upfront investment and the ability to supply evening peak demand.
The 4 to under 8 hours segment is expected to grow at the fastest pace, because rising solar penetration is widening the gap between midday generation and late-evening demand that shorter-duration systems cannot cover.
Asia Pacific dominated the global market in 2025 with a 64.50% share, supported by national renewable energy targets and the presence of leading module, battery cell, and inverter manufacturers in the region.
North America is expected to register the fastest regional growth during the forecast period, as rising grid reliability concerns and growing electricity demand encourage utilities, developers, and households to add batteries to solar.
Key players in the market include BYD Company Limited, Canadian Solar Inc., Enphase Energy, Inc., Fluence Energy, Inc., Huawei Technologies Co., Ltd., LONGi Green Energy Technology Co., Ltd., SMA Solar Technology AG, SolarEdge Technologies, Inc., Sungrow Power Supply Co., Ltd., and Tesla, Inc.

Solar-Plus-Storage Market report based on installation type, grid connection, storage technology, coupling architecture, usable discharge duration, and region:

By Installation Type Outlook (Revenue, USD Billion, 2021–2034)

Utility Scale
Commercial and Industrial
Residential

By Grid Connection Outlook (Revenue, USD Billion, 2021–2034)

Grid Connected
Off Grid

By Storage Technology Outlook (Revenue, USD Billion, 2021–2034)

Lithium Iron Phosphate
Other Lithium Ion
Flow Battery
Other

By Coupling Architecture Outlook (Revenue, USD Billion, 2021–2034)

DC Coupled
AC Coupled

By Usable Discharge Duration Outlook (Revenue, USD Billion, 2021–2034)

Under 2 Hours
2 to Under 4 Hours
4 to Under 8 Hours
8 Hours or More

By Regional Outlook (Revenue, USD Billion, 2021–2034)

North America

US
Canada

Europe

Germany
UK
France
Italy
Spain
Netherlands
Rest of Europe

Asia Pacific

China
India
Japan
South Korea
Australia
Rest of Asia Pacific

Latin America

Brazil
Mexico
Chile
Rest of Latin America

Middle East & Africa

UAE
Saudi Arabia
Israel
South Africa
Rest of Middle East & Africa