Under goal established by Executive Order 13693, titled "Planning for Federal Sustainability in the Next Decade," federal agencies have until 2025 to get at least 30% of their electricity via renewable sources. Developed by NREL as a starting point, REopt Renewable Energy Optimization tool is an energy-planning platform that shows agencies which renewable energy projects make the most economic or technical sense for a building or site, and helps them prioritize how to meet energy targets.