Briefing on Dark Sky Energy Center

Dark Sky Energy Center is a 7 MW battery storage facility in California, owned by San Diego Gas & Electric Co., which began operations in 2025 with a CapEx of $1361/kW.

Overview

• Dark Sky Energy Center is an operating plant.

• It has been operating since 2025.

• The plant is located in California.

• The parent company is Sempra Energy, and the EIA operator and owner is San Diego Gas & Electric Co.

Fleet Details

• The plant has a capacity of 7 MW.

• It consists of 1 generator.

• The primary technology used is Batteries.

Grid Integration

• The plant is connected to the CAISO (California) ISO.

• It is part of the WECC NERC region.

• The Balancing Authority is California Independent System Operator.

Financial Profile

• The Capital Expenditure (CapEx) is $1361/kW (Source: eia_agg_cost).

The Dark Sky Energy Center represents a recent investment in battery storage technology within California, owned and operated by San Diego Gas & Electric Co. Its integration into the CAISO grid highlights a strategic focus on enhancing grid reliability and renewable energy support in the region.