Welcome To Allterra: Energy on a Human Scale

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How Allterra’s Approach to Solar Power Is Different

At Allterra Solar, we pride ourselves on doing what’s best for our clients in Santa Cruz County and throughout the Central Coast region. As a referral-based solar installation company, our reputation and customer service is what keeps us growing. In our 15th year in business, our dedicated installers, technical support team, and design consultants have made us the local leader in solar. Our transparent design and build process and open communication with our clients helps us provide the best service possible. The team at Allterra Solar has the experience and knowledge to maximize your system’s performance and return on investment. With thousands of successful installations under our belt, Allterra has developed an industry leading product and service offering that delivers high quality and peace of mind.

Educational Approach

The professional staff at Allterra communicates the facts and nuances of solar power. We believe the best option for most homeowners is to own their own solar system. When the veil is lifted on solar power installation and $0 down rental options like Power Purchase Agreements (PPAs) and leases, the numbers speak for themselves. We’ll walk you through the options and  numbers to help find you the best solar solution for your home.

Professional Engineering

Our team of experienced engineers design your solar power system from scratch to ensure that we find the best approach for your home or business. Once the optimum design is complete, we match clients who need financing to the program that will yield the most savings and best return on investment for their solar power installation. Allterra’s technical team has the industry experience and knowledge to address any problem and maximize your system’s performance.

Quality Service

We want you to evaluate our track record in the solar industry. You’ll see the reviews and client testimonials all say the same thing: Allterra Solar does great work. We encourage those considering solar installation to research the equipment we use and warranties that provide peace of mind for 25 years. grow. Allterra’s dedicated service team is the local leader for providing technical support and maintenance for owners of solar PV systems, including the City of Santa Cruz.

Why Should You Choose Allterra?

Award Winning Customer Service

From day one, Allterra's goal is to provide you the best customer experience. We make going solar easy & enjoyable.

Next Day Service Guarantee

We offer an industry leading Next-Day Service Guarantee that provides peace of mind to our customers. If there is an issue with your system, we'll be out the next day to fix it.


We stand behind our work and the equipment we install. Our workmanship warranty covers system construction, including mounting the solar to your roof, and our equipment manufacturers provide industry best warranty coverage, including parts and solar panel performance.

Our Service Area

Allterra services the greater Central Coast and South Bay Area. We perform solar install projects as far south as Monterey County, as far north as Half Moon Bay, and in Santa Clara County. See a Map of Our Installations

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It has been a pleasure to work with all of you through the extensive process of tearing off the old roofs, having the old electric panels torn out, having the new roof installed and the panels installed, having everything inspected, and finally having the gutters installed. Through all of this you have (each team and each + every individual) been thoughtful and professional. This has been an enjoyable experience. We are very happy with it all. Thank you!

Diane C.

Santa Cruz, CA

Thank you for the great service we received during the installation of our solar system. Each person was professional and friendly and we know we made the right decision using your company. We will be pleased to recommend your company to anyone. Again, thank you.

S. Family

Santa Cruz, CA

Thank you so much for making this process so painless. Without exception, everyone I talked with or met during the installation of our solar panels was polite professional and just generally a pleasure to work with. Now we are excited to watch these solar panels make energy! Thank you again.

Hope T.

Salinas, CA

Recent News

Community Events

Santa Cruz Community Farmers’ Markets
Wednesday – Downtown SC, Saturday – Westside, Sunday – Live Oak

SCCFM’s family of five farmers’ markets showcases the best in regional organic produce, pasture-raised meats, eggs and dairy, sustainably-harvested seafoods and artisan-made goods. Purchasing your food through the area’s farmers’ markets ensures that you are getting the freshest, healthiest and tastiest foods while supporting local jobs, increasing local spending and promoting the region’s strong farming tradition. What’s good for you is good for your community. Learn More…

Solar Sundays
11am – 2pm @ New Leaf Community Markets

Bring your PG&E bill and questions about solar energy to New Leaf Half Moon Bay, Capitola, or West Side Santa Cruz and one of Allterra’s friendly and knowledgeable representatives will be available to provide answers.

Ready For a Competitive Quote?

We will discuss your home, energy needs, future goals, and any concerns about solar you may have in a quick interview process. We’ll evaluate a few designs, verify the most advantageous way to go solar, and a consultant will explain solar options with you at your home for free.

Typically, our clients appreciate our recommendation of purchasing solar equipment, receiving the IRS Tax Credit, and moving to a Time of Use Rate Schedule where you bank electricity credits by day and buy cheap energy by night.