The share of solar power generation with battery storage has reached 16% by 2026. This figure, compared to 2% in 2017, reflects significant changes in the approach of solar energy developers.
Increasing Trend of Battery Storage
According to the provided data, announced plans to add solar capacity in the last quarter of this year indicate that the share of solar capacity along with battery storage may reach 19% by 2026. This trend is expected to continue in the long term, with projections suggesting that this share will exceed 30% in the plans presented for 2027 and 2028.
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Optimal Energy Production Management
When operators co-locate battery storage with solar energy, they have the ability to direct solar power output to the grid or to the battery depending on wholesale prices. Wholesale prices in areas with high solar energy participation typically decrease when the share of solar energy is high and increase during low periods. Power plants with co-located solar energy and battery storage can optimize their combined output of generating resources to enhance their value under changing price conditions.
These changes in the energy industry reflect fundamental shifts in how energy resources are managed. Southwestern states in the United States, with higher-than-average ratios of solar capacity to their total generation capacity, also have higher levels of co-located solar and battery capacity. As of September, 13% of the total energy generation capacity in the United States comes from solar energy, with 18% of this share co-located with battery storage.
Specifically, the share of solar energy generation co-located with battery capacity in California, Arizona, New Mexico, and Nevada is more than double the national average. These developments could lead to increased efficiency and reduced energy costs in the future.
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