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.

  • Full System Design Engineering Drawings
  • C&I, Microgrid, PV and Energy Storage Systems
  • Electrical & Structural Drawings
  • Equipment Specification Support
  • Engineer of Record Services
  • Codes & Standards Consulting
  • Power Studies & Analysis
  • Engineering Site Audit or Oversight
  • Electrical Feasibility Assessment
  • Multi-year Financial Modeling
  • System Energy Dispatch
  • System Architecture & Sizing

Electrical Expertise

Renewable energy engineer inspects solar tracking equipment beneath ground-mounted panels

The renewable energy industry has a limited supply of experts well-versed in codes, standards, and best practices. Expertise and risk are inversely proportional. The more expertise you have, the more you can drive down risk. 

Engineering Value

Engineers monitor battery energy storage system using touchscreen control panel

Subject-matter expertise creates opportunities to add value throughout project design—especially for unique energy storage and microgrid systems. We find innovative solutions to complex engineering problems.

Microgrid Feasibility Studies

Mayfield Renewables engineers review technical Mayfield Renewables engineers review technical drawings during clean energy project planning drawings during clean energy project planning

Microgrids offer a compelling solution for communities and businesses to reduce electricity costs, improve resiliency, and meet sustainability goals. Our feasibility studies help you determine what’s actually possible from a financial, electrical, and site-based perspective.

Technical Articles & Case Studies

  • Aerial view of a solar panel array powering a building surrounded by trees

    Case Study

    A Community-Driven Island Microgrid

    Powered 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.

    Read on: A Community-Driven Island Microgrid
  • Mayfield Updates

    How Developers Can Navigate the New Energy Storage Landscape

    At RE+ Northeast 2026 in Boston (February 3–5), Elexity and GridVest Energy participated in a "Live! Dispatches from the Energy Transition" session. The discussion focused on strategies for developers to navigate the evolving energy storage landscape, specifically addressing the integration…

    Read on: How Developers Can Navigate the New Energy Storage Landscape
  • Close-up of bundled red and black electrical cables secured with zip ties; text reads, "What's the latest on UL 3741?" and Mayfield Renewables branding appears in the corner.
    Codes and Standards

    What’s the latest on UL 3741?

    UL 3741 is a safety standard titled Photovoltaic Hazard Control that was first released in 2020 and updated in October 2025. The standard was developed for PV installations required to meet the National Electrical Code (NEC) section 690.12, Rapid Shutdown…

    Read on: What’s the latest on UL 3741?