Clearway Energy Completes 320-MW Storage Project Complementing Existing Solar Arrays

Why It Matters

The addition of large‑scale battery storage bolsters grid reliability and enables higher penetration of renewable energy in the Intermountain West, positioning Clearway as a key player in the utility‑scale storage market.

Key Takeaways

• 320 MW Honeycomb Energy Center adds 1,280 MWh storage capacity
• Four 80‑MW battery units co‑located with Clearway solar farms
• 20‑year power purchase agreements signed with PacifiCorp
• $60 million in taxes and 150 construction jobs created

Pulse Analysis

Utility‑scale battery storage is rapidly moving from niche projects to a cornerstone of grid modernization, and Clearway Energy’s Honeycomb Energy Center exemplifies that shift. At 320 MW, the facility ranks among the largest single‑site storage deployments in the United States, delivering 1,280 MWh of dispatchable power. By situating the batteries directly beside existing solar arrays, Clearway reduces transmission losses and creates a seamless solar‑plus‑storage hub that can absorb excess generation during sunny periods and release it when demand spikes, a model that utilities across the country are beginning to emulate.

The strategic 20‑year power purchase agreements with PacifiCorp lock in revenue streams for the project while providing the utility with a reliable, flexible resource to balance its portfolio. This arrangement helps PacifiCorp meet its renewable integration targets without compromising reliability, especially during Utah’s winter peaks. Beyond grid benefits, the development injects significant economic activity into the region—$60 million in tax revenue earmarked for schools and public services and 150 construction jobs at peak, with a dozen permanent positions sustaining local employment. Clearway’s $150,000 donation to a tiny‑home village further underscores the company’s community‑focused approach.

Honeycomb’s launch signals broader market confidence in large‑scale storage as a catalyst for deeper renewable penetration. Investors are increasingly allocating capital to projects that combine solar and storage, recognizing the dual revenue potential from energy arbitrage and ancillary services. Policymakers are also taking note, as the demonstrated reliability of such hybrid assets informs future regulatory frameworks and incentive structures. As more utilities adopt similar long‑term contracts, the economics of battery storage will continue to improve, accelerating the transition to a resilient, low‑carbon grid nationwide.