The preferred provider of PV (photovoltaic) energy solutions




Customer Testimonials


"Cobalt delivered the best contractor service I have ever experienced. Highly professional and reliable, a class act from start to finish. Mark Byington (the owner) gave me all the information about solar that I could ever want, and his crew (office and field) were competent, efficient, polite, clean, exceptionally communicative, and true to their word. They showed up exactly when they said they would, kept me informed every step of the way, cleaned up the job site every day before they left. Price was competitive, and they took care of all of the details (permits, inspections, rebate, etc.) I recommend them enthusiastically, and without reservation." - Ken, Hillsborough

"I liked their professionalism and timeliness. I have recommended their services to a few people, and everyone seems to be very happy with the services they have received." -Eric J., Mountain View

"They were incredibly competent, honest, and the job was of the highest quality." -Lauren D., Livermore

"They showed a lot of professionalism. They gave me all the information that I needed. I didn't have to deal with PG&E. They guided me through the whole process." -John E., Saratoga

"Was definitely impressed with this company. I have had a very good experience and they do a great job of cleaning up after themselves. I am very happy and pleased. They made this experience very quick and easy. The employees were very professional and they made us see all the financial benefits we could get from installing this system." -Mike, Woodside

"They were very thorough about everything. They made sure our questions were answered. They did exactly what they said they would do. The solar system is working better than we had expected." -Bobbie F., Burlingame

"They were fast, professional, and they did what they said they would do." -Claire R., Los Altos

"They were excellent, responsive, and thorough in their work. They explained things very well. They were very easy to get hold of." -Robert E., Los Altos Hills

"Cobalt Power and the installers did an excellent job installing our photovoltaic panels. They cleaned up after themselves every day and did everything they could to make the installation go smoothly. They kept me informed at every step. I'd highly recommend Mark Byington and Cobalt Power for solar installation. Mark is thorough and keeps on top of the details of each job, despite the current high demand for solar in this area and the volume of work that he has." - John, Redwood City

"Professional, courteous service and a high-quality installation." -Pat G., Palo Alto

"Mark worked with me during the initial phase of the project, and he was very patient with my detailed questions about the system. I was very pleased with the high quality of his work. Mark seemed to care about us." -John, Atherton

"I liked the professional way in which Mark went about the whole job. He analyzed where to put the panels, and I liked his honesty in which he answered all my questions. He gave me a huge amount of information about the system and how it works." -Ruth Y., Los Altos