Consulting Engineering
Strategic support for solar-plus-storage and microgrid projects
We've been in the industry for 25 years
Our solutions are rooted in deep expertise
We'll keep you ahead of the curve
Engineering Services
Designing systems that perform to expectations
As proven technical experts, we act as consultants on designing and engineering your system, whether it’s a commercial and industrial (C&I), microgrid, or small utility-scale project.
Project Design Engineering
- Full System Design Engineering Drawings
- C&I, Microgrid, PV and Energy Storage Systems
- Electrical & Structural Drawings
- Equipment Specification Support
Consulting Engineering
- Engineer of Record Services
- Codes & Standards Consulting
- Power Studies & Analysis
- Engineering Site Audit or Oversight
Microgrid Feasibility Studies
- Electrical Feasibility Assessment
- Multi-year Financial Modeling
- System Energy Dispatch
- System Architecture & Sizing
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Case Studies
A Community-Driven Island Microgrid
Cascadia Renewables
Learn more: A Community-Driven Island MicrogridPowered by a single undersea transmission line and accessible only by ferry or small plane, Orcas Island is uniquely vulnerable to disruption. In the event of an earthquake, wildfire, or severe weather, residents could be cut off from critical supplies and services for days.
The San Juan County Emergency Management (SJCEM) agency identified the Orcas Center as a facility that could function as a critical emergency support hub if reliable backup power could be installed. At the time, however, the Center had no energy resilience infrastructure. A prolonged outage would leave it dark and inaccessible just when the island needed it most.
Recognizing this gap, SJCEM began exploring options for a solar- and battery-based microgrid system that could keep essential services online during emergencies while reducing operating costs under normal conditions.
In other words, this island facility was interested in “islanding” from the grid.
We are very pleased with the excellent service provided by Mayfield Renewables. Their expertise in designing solar PV systems, solar plus storage microgrids, and assisting with microgrid feasibility studies has been invaluable to our projects. The team’s professionalism, attention to detail, and innovative solutions have consistently exceeded expectations and has aided many of our successful grant applications. Thanks to their dedication and technical expertise, we have successfully implemented efficient and reliable energy systems that are both sustainable and cost-effective
Jon Miller
Development Director, Renewables, McKinstry
I wanted to express our heartfelt gratitude for your invaluable support on our recent tribal community project application of the Office of Clean Energy Development (OCED). The technical expertise your team contributed through mayfield's feasibility study not only brought clarity and understanding to the project's approach but also significantly elevated its presentation and credibility on paper. Your dedication and professionalism were genuinely appreciated!
Tashina Duttle
COO & Managing Partner; Deerstone
We truly enjoy collaborating with Mayfield’s team because of their creativity and professionalism. The unique nature of our projects requires additional thoughtfulness, and Mayfield consistently delivers innovative, reliable designs that work seamlessly.
Keith Kueny
Energy and Resiliency Manager, Farmers Conservation Alliance
We’ve enjoyed working with Mayfield in every respect, and have done so for a long time because of the depth of knowledge they bring, their willingness to engage in conceptual design discussion, and their rapid turnaround when it’s time to do drawings. We routinely refer them to our partners because they’re not just an outsourced engineering firm; instead, they’re a reliable partner that can help avoid the many pitfalls of microgrid implementation. We’re looking forward to many successful projects with them in the very near future! Oh, and “Ask Mayfield Anything” videos are a great way to make a plane trip more productive!
Nate Mills
VP of Operations, American Microgrid Solutions
During the feasibility process for our community resilience center, the Mayfield team provided invaluable expertise and skills, and was patient and easy to work with. The quality of the feasibility study may have been the difference maker in our successful application for construction funding.
Bob Danko
Mt. Hood Towne Hall Association Board Member
Working with the Mayfield engineering team has been an awesome experience. Their team is professional, knowledgeable, and dedicated to quality. They communicate proactively and integrate seamlessly with our processes, ensuring our projects are completed on time and to the highest standards. We look forward to continuing our successful collaboration with Mayfield.
Austin Earley
Commercial Solar Design Manager, Baker Electric
Technical Articles & Case Studies
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Case Study
A Community-Driven Island Microgrid
Read on: A Community-Driven Island MicrogridPowered by a single undersea transmission line and accessible only by ferry or small plane, Orcas Island is uniquely vulnerable to disruption. In the event of an earthquake, wildfire, or severe weather, residents could be cut off from critical supplies and services for days.
The San Juan County Emergency Management (SJCEM) agency identified the Orcas Center as a facility that could function as a critical emergency support hub if reliable backup power could be installed. At the time, however, the Center had no energy resilience infrastructure. A prolonged outage would leave it dark and inaccessible just when the island needed it most.
Recognizing this gap, SJCEM began exploring options for a solar- and battery-based microgrid system that could keep essential services online during emergencies while reducing operating costs under normal conditions.
In other words, this island facility was interested in “islanding” from the grid.
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Codes and StandardsThe 6th Edition of UL 9540A is Here
Read on: The 6th Edition of UL 9540A is HereWhat & When Despite retaining the title, “Standard Method for Evaluating Thermal Runaway Fire Propagation in Battery Energy Storage Systems,” UL 9540A has gotten a makeover. In its sixth edition, this performance standard spells out the testing protocols for a…
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Codes and Standards
How to Size Equipment Grounding Conductors per NEC 250.122
Read on: How to Size Equipment Grounding Conductors per NEC 250.122Properly sized equipment grounding conductors (EGCs) ensure that fault currents are safely carried back to the source, minimizing the risk of equipment damage and electrical hazards. Getting the sizing right is crucial for reliable system performance and overall safety and…
