Increase in Co-located Battery Storage with Utility-Scale Solar Generation

Increase in Co-located Battery Storage with Utility-Scale Solar Generation

As of September 2026, the share of new utility-scale solar capacity that is co-located with battery storage has surged to over 16%. This marks a dramatic increase from just 2% in 2017, according to data reported to the Energy Information Administration (EIA) by solar operators. This trend reflects a significant shift in how solar energy is being harnessed and stored, indicating a growing recognition of the importance of energy storage in enhancing the reliability and efficiency of renewable energy sources.

What Changed

The rise in co-located battery storage with solar generation is a notable development in the renewable energy sector. Utility-scale solar developers are increasingly integrating battery storage solutions with new solar photovoltaic installations. This shift is driven by the need for more reliable energy sources, particularly as the demand for renewable energy continues to grow. The data indicates that as of September 2026, more than one-sixth of new utility-scale solar capacity added this year is now paired with operable battery storage.

Why It Matters for Buyers/Owners

For electric vehicle (EV) buyers and owners, this trend has several implications:

• Reliability of Charging: The increased availability of co-located battery storage may enhance the reliability of energy sources for EV charging, particularly during peak demand periods when grid energy can be more expensive or less reliable.
• Cost Efficiency: As battery storage becomes more integrated with solar generation, it could lead to lower energy costs for EV owners, especially if stored energy can be used during high-demand times when prices spike.
• Sustainability: The combination of solar and battery storage promotes a more sustainable energy ecosystem, which aligns with the goals of many EV owners who prioritize renewable energy sources.

Key Details from Source Material

According to CleanTechnica, the data showing this increase in co-located battery storage comes from operators reporting to the EIA. The trend suggests that utility-scale solar developers are recognizing the benefits of integrating battery storage with solar installations, which can help manage energy supply and demand more effectively. This integration is crucial for maximizing the potential of renewable energy and ensuring that it can meet the needs of consumers, including those who rely on electric vehicles.

What to Watch Next

As this trend continues to evolve, it will be important to monitor how the integration of solar and battery storage affects energy policies and incentives in the coming years. Additionally, the impact on energy costs for EV owners and the overall accessibility of charging infrastructure will be critical areas to watch. Future developments in technology and policy could further influence the relationship between solar energy, battery storage, and electric vehicle charging, shaping the landscape of renewable energy for years to come.