Plus Power | 13,108 followers on LinkedIn. Plus Power develops battery energy storage systems that enable a more efficient and reliable electrical grid. | The Plus Power team, led by seasoned executives from the renewables and energy storage industry, is accelerating the deployment of transmission-connected battery storage throughout the United States. Based in Houston, San Francisco and New York, Plus Power operates at the nexus of energy, technology and finance. Plus works with electric utility companies to provide capacity, energy, and ancillary services from energy storage projects that can reduce operating costs and provide benefits to rate-payers.