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Sequoia Engineering & Design Associates, Inc. (SEDA) is a full-service, multi-discipline engineering and design firm specializing in:


  • Solar photovoltaic (PV) and battery energy storage systems (BESS) 

  • Electrical and mechanical engineering

  • Instrumentation and controls

  • Successful completion of critical projects for industrial, oil and gas, utility, independent power producers, enewable energy, and institutional sector clients.

Our mission is to develop long-term partnerships with our clients, build upon the dynamic foundations of the worldwide energy industry, and contribute to an increasingly prosperous and sustainable society.



We specialize in solar photovoltaic and battery energy storage systems (BESS) and excel in providing comprehensive solutions that harness the power of renewable energy for sustainable development. Our services optimize energy production, ensure reliable storage to achieve our clients’ sustainability goals, and maximize cost-effectiveness and resilience.


Substation Design &
Power Delivery

You can count on us to run design studies, design substations and develop solutions
for practical or difficult substation issues you face today.

Image by ThisisEngineering RAEng
Blueprint Design

Instrumentation, Controls
& Electrical Engineering

With over 30 years of experience in providing new and innovative approaches to automation and control, we are your partner in understanding your needs and developing solutions to meet them. From concept to commissioning, we are committed to developing, designing, and engineering your controls needs.

We offer full-service engineering and design services, including planning and scoping studies, detail design, construction and commissioning support, and power and industrial systems controls.  Our team includes licensed engineers in all major disciplines.

Engineering & Design


Geothermal Engineering

Project Management

& Project Engineering

We treat project management as a critical process to achieve competitive advantages through effective utilization of modern planning and control techniques.

We offer expertise in power and controls systems of sustainable natural heat sources that exist within the Earth and using them to produce energy for electrical power.

Strategic Consulting,

Research & Development

We help clients define the “big picture” and then clarify the front-end and development strategies for successful project execution.


Sustainable Energy


  • Renewable

  • Reliability

  • Energy Storage

Pipes and Pressure

Oil & Gas

  • Bulk Fuel Distribution

  • Storage

  • Gas Distribution and Transmission

Fixing Electricity Lines

Power & Infrastructure

  • Transmission & Distribution

  • Substation Design

  • Instrumentation

  • Power Systems


Misty Slopes


Our commitment to creating a sustainable future

Sequoia’s commitment to sustainability is for the protection of the environment, the people in our communities, and our natural resources.  We strive to meet and exceed the environmental targets set by governing authorities in California, and every location in which we work.


We apply our experience and innovations in engineering, proven design processes, and knowledge of sustainable construction practices to develop, engineer, and design projects that support the environment, and those who are affected by our projects.


Head Office

2125 Oak Grove Road, Suite 300

Walnut Creek, CA 94598

Tel: 925-891-4183


We’re always interested in hearing from professionals who would like to know more about careers at Sequoia.


Please send your resume and cover letter to

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