Horse Heaven Solar is a significant photovoltaic solar energy project located in Prosser, Washington, within the Bonneville Power Administration power control area. With a capacity of 300 megawatts, this unregulated facility is operated and owned by Scout Clean Energy, a subsidiary of Brookfield Corporation. The project harnesses solar energy as its primary fuel source, contributing to the growing demand for renewable energy solutions. While the expected online year for the project has not been specified, its strategic positioning and robust backing by Brookfield Corporation underscore its potential impact on the renewable energy landscape.