Solar Company Oceanside CA

About CleanTech Energy Solutions 

Local. Experienced. Trusted.

CleanTech Energy Solutions has been helping San Diego County homeowners and businesses lower their electricity costs with solar since 2007. From our headquarters in Oceanside, CA, we design and install solar electric systems, battery storage, and solar water & pool heating for residential, commercial, and multi-family properties. 

A True Local Solar Company

Unlike many solar companies, we never outsource our installations. Our experienced in-house team handles every step, ensuring consistent workmanship, accountability, and long-term support long after your system is installed.

Experience You Can Trust

With 18+ years in business, an A+ rating with the Better Business Bureau, and five nominations for the BBB Torch Award for Ethics, CleanTech Energy Solutions has earned a reputation for honest advice, quality installations, and reliable service.

 Proudly Serving North County & San Diego

We work with homeowners and businesses throughout Oceanside, Carlsbad, Encinitas, San Marcos, Vista, Escondido, and across San Diego County.

CleanTech Energy Solutions — helping you take control of your energy costs with reliable solar solutions. 

Light green grid pattern with diamond shapes at intersection points.
Two people give thumbs up next to a solar panel inverter on a wall.

Our History in the California Solar Market

California has led the nation in solar adoption for decades. Policies, incentives, and regulatory programs have shifted multiple times, from early rebate driven markets to the current Net Energy Metering structures that prioritize self consumption and energy storage.



Cleantech Energy Solutions Inc entered the San Diego solar market in 2007 during a period of significant growth. Since then, we have navigated multiple program transitions, utility changes, and building code updates. Our experience allows us to design systems that comply with current standards while anticipating future regulatory trends.


We understand how California utility rate plans, time of use billing, and evolving interconnection requirements affect system performance. This insight allows us to guide clients toward informed decisions rather than short term solutions.

An In-House Team From Start to Finish

  1. Consultation First - Every project begins with a detailed consultation. We take the time to understand your energy usage patterns, financial goals, and property characteristics. We do not apply a one size fits all approach. Instead, we design systems around your specific needs.
  2. Detailed Site Evaluation - Accurate system design requires accurate data. We utilize drone surveys to capture precise roof measurements and shading conditions. This technology improves planning accuracy, supports permitting documentation, and reduces installation surprises.
  3. In-House Project Management - Our in-house team manages the process from design and permitting through installation and interconnection. By maintaining control of each stage, we ensure consistency, accountability, and compliance with California building and electrical codes.
  4. Long Term Service Commitment - We do not disappear after installation. Solar systems require monitoring, maintenance, and occasional service. We specialize in ongoing system support, including performance diagnostics, inverter replacement, and troubleshooting for systems originally installed by other contractors.

What Sets Cleantech Energy Solutions Inc Apart

Deep Industry Roots

With experience dating back to 1984, our leadership brings decades of hands on knowledge to every project. This foundation supports sound engineering decisions and practical system design.

Strong Local Presence

As a solar contractor based in Oceanside, we understand local permitting offices, inspection processes, and utility interconnection standards throughout San Diego County. Our familiarity with regional requirements streamlines projects and reduces delays.

Focus on Sensible Energy Solutions

We believe solar and energy storage should make financial and operational sense. We do not oversize systems or promote unnecessary upgrades. Instead, we provide honest assessments and transparent recommendations aligned with your objectives.

Comprehensive Service Capabilities

Many solar companies focus solely on new installations. We provide a broader range of services, including:

  • Solar panel installation
  • Energy storage and battery integration
  • Solar repair and system diagnostics
  • Solar panel maintenance
  • Temporary removal and reinstallation for roof work
  • Solar water heating systems
  • Solar pool heating systems

Our Commitment to California Compliance

California solar projects must meet strict regulatory standards. Electrical codes, fire setback requirements, structural engineering guidelines, and utility interconnection rules all play a role in system approval.



Our team stays current with state and local requirements to ensure that each installation meets code and passes inspection efficiently. We design systems with long term compliance in mind, especially as Net Energy Metering policies continue to evolve.


Energy storage integration requires additional technical precision. Proper battery configuration, load management planning, and backup circuit design are essential to maximizing performance and maintaining safety.

Serving Oceanside and San Diego County

Cleantech Energy Solutions Inc proudly serves homeowners and businesses in Oceanside and surrounding communities throughout San Diego County. Our local presence allows us to respond quickly to service needs and maintain strong relationships within the community.



We operate Monday through Friday from 8 am to 5 pm. During those hours, our team is available to answer questions, schedule consultations, and provide support for existing systems.

Light green grid pattern with diamond shapes at intersection points.
Solar water heater on a red-tiled roof, with mountains and trees in the background. Sunny day.
Solar panels installed on the red-tiled roofs of an apartment complex. Bright sunny day.
Solar thermal panels on rooftop with house and ocean view in background.

Our Vision for the Future

The solar industry continues to evolve. Grid modernization, energy storage growth, and updated state policies are shaping the future of energy in California. Cleantech Energy Solutions Inc remains committed to adapting responsibly and guiding our clients through these changes.



We believe the future of solar is not just about generation. It is about intelligent system design, storage integration, and long term reliability. By combining decades of experience with modern tools such as drone based site analysis, we continue to refine our approach and deliver dependable results.

Frequently Asked Questions

  • How long has Cleantech Energy Solutions Inc been operating?

    We have served the San Diego solar market since 2007, with industry roots dating back to 1984.

  • Do you handle both installation and repair?

    Yes. We provide new system installation, energy storage integration, repair, maintenance, and temporary removal for roof work.

  • Are you familiar with current California solar programs?

    Yes. We design systems based on current Net Energy Metering structures and California utility rate plans to ensure compliance and optimal performance.

  • Do you outsource installations?

    No. Our in house team manages design, permitting, installation, and service.

Contact Cleantech Energy Solutions Inc

If you are looking for a trusted solar company in Oceanside CA with deep industry experience and a strong understanding of California solar programs, we are ready to help.