chapter offers procurement information for projects that include an energy storage component. . They include connecting the solar system to both an electrical system and building, understanding procurement options, and finding the most cost-effective solutions. Procurement Specifications Templates for On-Site Solar Photovoltaic: For Use in Developing Federal Solicitations [PDF] Considerations. . Photovoltaic Plant and Battery Energy Storage System Integration at NREL's Flatirons Campus NREL is a national laboratory of the U. Built for reliability, this approach promises end-to-end safety throughout its lifecycle, covering manufacturing. . The Federal Energy Management Program's (FEMP) Distributed Energy and Energy Procurement initiative helps federal agencies accomplish their missions through investment in lasting and reliable energy-generation projects and purchases. For more than 30 years, FEMP has helped federal agencies with. .