Occidental Power 888.497.6527 or 415.681.8861


Providing Solar Installations in the San Francisco Bay Area since 1989



Our Solar Power Partners

We work with international, American and local companies who help make our solar installations successful. Learn more about how our partnership them provides us with the materials and tools that supply our solar electric and thermal systems.


Heliodyne Solar Hot Water

For 30 years, SunPower® has led the way with record-setting technologies and innovative solar solutions, and our cutting-edge approach to sustainability is renowned for its positive impact on the environment and our communities. No other solar company offers such a complete package.

SunPower commercial dealers are qualified and professional solar installers for commercial projects:

  • Trained to the highest standards
  • We inspect our dealers’ work to ensure that the highest quality
  • Reliably deliver systems designed to produce more solar electricity for the life of the system

For more information, visit www.us.sunpower.com.

German Solar

GermanSolar USA is a leading manufacturer of high performance photovoltaic modules, and we’ve expanded to multiple areas including USA. Our production control at the production facilities has the highest priority. We focus on producing modules with excellent yields and high durability.

For more information, visit http://www.germansolarusa.com.


As a leading global specialist for photovoltaic system technology, SMA is setting the standards today for the decentralized and renewable energy supply of tomorrow. More than 3,000 SMA employees in 20 countries have devoted themselves to this task. Our innovative solutions for all photovoltaic applications and our unsurpassed service offer our customers worldwide greater independence in meeting their energy needs.

For more information, visit www.sma-america.com

SolarEdge invented an intelligent inverter solution that revolutionized the way power is harvested and managed in a solar photovoltaic (PV) system. The SolarEdge direct current (DC) optimized inverter system maximizes power generation at the individual PV module level while lowering the cost of energy produced by the solar PV system.

For more information, visit www.solaredge.com.

Heliodyne Solar Hot Water

Heliodyne®, established in 1976, has acquired a solid reputation of engineering and manufacturing quality solar water heating equipment for both residential and commercial applications.

For more information, visit www.heliodyne.com.


Sonnen believes clean, affordable, and reliable energy for all is one of the greatest challenges of our time. With 16,000 sonnenBatterie systems installed worldwide, sonnen is a proven global leader in inte lligent energy management solutions that provide greater energy control for residential and commercial customers through increased solar self -consumption, reduced peak energy usage and reliable backup power during outages – contributing to a cleaner and more reliable energy future. sonnen has won several awards for its energy innovations and sonnenBatterie products, including the including Fast Company’s Top 10 Most Innovative Companies in Energy.

For more information, visit www.sonnen-batterie.com.

Tecogen - Advanced Modular CHP Systems

Tecogen Tecogen is a next-generation manufacturer of natural-gas-fueled, engine-driven, combined heat and power (CHP) products that aim to reduce energy costs, reduce greenhouse gas emissions, and alleviate congestion on the national power grid.

For more information, visit www.tecogen.com

Tecogen - Advanced Modular CHP Systems

Excelsior Roofing Co., located in San Francisco, California, is the oldest and most experienced roofing company in San Francisco. We have provided our community with professional and reliable roofing services for more than 100 years! We are committed to offering homeowners and businesses the best quality, service and price for their roofing needs.

For more information, visit www.excelsiorroofing.com

Belvedere Solar Finance

Belvedere Solar Finance is a leading provider of solar financing for businesses, non-profits and government entities in California and other western states. We have funded almost $100 million in solar leases and loans since 2006. We provide leasing and financing for solar systems ranging in price from $100,000 to over $3.0 million with financing terms from five to ten years. We offer a variety of options including leases, financing agreements and tax-exempt financing. 

For more information, visit www.belvederesolarfinance.com.