The Solar + Storage Engineering Firm That Designed 8.6 GW and Counting
We support developers and EPCs with interconnection, design, and permitting, backed by 17,000+ projects and 8.6+ GW of engineering experience.
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Engineering That Powers Fortune 500 Portfolios, Rooftops, Carports and Ground Mounts
From Amazon and Costco to Macy’s and IKEA - we deliver C&I solar + storage designs that pass AHJ review the first time. 3,400+ designs across 50 states.
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Community Solar Engineering, Built for Scale and Speed
Installer-ready designs across the country’s most active community solar markets. We handle interconnection, structural, and EOR - so you can break ground faster.
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Award Winning Utility-Scale EOR for Solar, Storage, and Hybrid Projects
Project-of-the-year-winning utility-scale designs. Full spectrum EOR, civil, structural, and electrical engineering - all under one roof.
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Making Distributed Storage Work in Your State
Energy storage can be the “Swiss-army knife” of the electricity grid. Reports for more than a decade have demonstrated ...
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The Most Common Carport Electrical Design Mistakes and How EPCs Can Eliminate Them
Solar carports may look deceptively familiar to rooftop or ground mount projects: steel, modules, inverters, conduits. ...
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Simplify the Complex - Rethinking Standardization for Modern Solar Projects
Owners & developers want long-term performance. EPCs want to get steel in the ground and pass inspections. Between ...
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Distributed Generation - C&I
Engineering for commercial and industrial solar and BESS projects, supporting permitting, utility coordination, and design from development through construction.
Transmission - Utility-Scale
Engineering for utility-scale solar + BESS projects, supporting interconnection, system studies, utility coordination, and design through development and execution.
Ground Mounts
Engineering services for utility-scale and commercial ground-mounted solar systems, addressing grading, foundations, interconnection, and constructability.
Rooftops
Engineering solutions for rooftop solar projects, including structural evaluation, electrical design, code compliance, and constructible permit sets.
Carports
Integrated engineering for solar carports, combining structural, civil, and electrical design to deliver durable, code-compliant parking solutions.
Battery Energy Storage Systems
Engineering services for standalone and solar-paired battery energy storage systems, including system sizing, electrical design, interconnection, and code compliance.
Microgrids & Repowering
Engineering support for microgrids and repowering projects, optimizing system upgrades, integrations, performance, and long-term asset value.
Preliminary Engineering
Project design, studies, reports, infrastructure analysis, technical support, and drawings to advance projects from concept to construction.
Structural Engineering
Existing structure analysis, new structural design, equipment foundations, structural support solutions, utility pole design, and reinforcement strategies.
Interconnection Engineering
Utility planning, PSCAD/PSS®E studies, interconnection documentation, and utility coordination services supporting project approvals and grid compliance.
Engineer of Record
Site surveys, power system analysis, calculations, and detailed construction drawings for solar and storage projects, optimizing PV, inverter, and battery design.
Power Engineering
Pre- and post-interconnection studies, interconnection planning, protection design, utility coordination, and grid compliance services.
Electrical Engineering
Site Surveys, electrical system design, one-line diagrams, calculations, construction documents, and power system feasibility support.
Solar + Storage System Design
Glint and Glare Studies, optimal PV/inverter/battery sizing, precise calculations, and code-compliant, risk-reduced design and drawing sets.
Owner’s Engineering
Technical risk management, due diligence, performance validation, quality reviews, PVSYST/energy modeling, design and equipment evaluations, and support.
Civil Engineering
Civil and electrical design reviews, discipline coordination, conflict resolution, value engineering, and civil guidance supporting integrated project delivery.
Value Engineering Tips See More
Energy storage can be the “Swiss-army knife” of the electricity grid. Reports for more than a decade have demonstrated the value storage can provide. But now that states have moved from piloting energy storage to adopting it at scale, there is a..
Solar carports may look deceptively familiar to rooftop or ground mount projects: steel, modules, inverters, conduits. But not so fast! Treating carports that way is one of the most direct paths to rework, delays, and uncomfortable conversations..
Owners & developers want long-term performance. EPCs want to get steel in the ground and pass inspections.Between those two priorities lies the real challenge: how much of your project should be standardized, and when does customization pay off?
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The 2026 edition of the National Electrical Code (NEC) introduces a wide range of updates that affect how solar PV systems are designed, installed, and inspected. While many revisions are editorial or structural, several changes have real..
Eric Sieckmann
Penn Renewables
Hartman Hoel
Sunpeak
Peter Misthos
Nautilus Solar Energy, LLC