Key technical factors must be considered before moving forward. We will determine your project’s feasibility from an engineer’s perspective.

Design & Engineering

A carefully engineered design is critical to a successful project. We are the top Solar PV & Battery Energy Storage industry experts.

Production Modeling & Verification

Our experienced team provides customized modeling and production verification for many scenarios.

Consulting & Independent Engineer (IE) Services

We will review and advise to ensure a code compliant design aligned with best industry standards, adding value and confidence to your project.

On-site Inspection Services

Our team of code compliance experts provides on-site inspections during construction, at project completion, and beyond.

Solar PV Design & Quality Assurance Company

SEIPS provides PV and energy storage project engineering and quality assurance services during every stage of the project development life cycle from concept to commissioning and beyond. 

We pride ourselves in offering the very best quality assurance (QA) for the solar industry. Our solar PV engineering services include in-house licensed electrical, civil, and structural engineers. We offer performance testing, capacity modeling, QA inspections during and after construction, and evaluation services of existing systems.

Interesting Stats About SEI Professional Services


Over 550 Years of Collective Solar Energy Industry Experience


Over 1000 Megawatts of Solar PV Designed, Installed, Commissioned, or Maintained


Over Four Dozen Solar Professional Team Members Employed


Ranked 39th overall, 34th in utility-scale projects, 4th within Colorado, and 9th in the subcategory of Solar + Storage in the Solar Power World Top 500 Contractors List for 2021

Our Team: Solar PV and Energy Storage Experts

The SEI Professional Services (SEIPS) team includes the solar industry’s top PV system designers, engineers, and technicians. Our team has over 550 years of combined solar PV and energy storage industry experience. We are uniquely positioned to offer leading-edge knowledge of solar PV and energy storage equipment, electrical codes, and standards. 

The types of solar PV design and quality assurance services offered will be tailored to meet the specific needs of your project. Solar engineering services are offered where we are licensed to operate and that list continues to grow rapidly.

SEIPS Case Studies

Our case studies showcase the challenges and successes of select SEIPS projects and how we provide world class technical services and solutions to the solar industry.

SEIPS Tech Tips

We provide SEIPS Tech Tips in order to keep driving the solar industry forward. Knowledge is power. Learn from our 550 years of combined experience.

Contact SEIPS

Please contact us with your project specifications so we can give you a tailored proposal for design, operations, feasibility, commissioning or consultation.

Tech Tips & Case Studies

Read some of our articles below with insider tips and studies.

Leadership Team