Power Engineering for Solar & Energy Storage Projects
Our team, composed of seasoned engineers and project managers, boasts extensive experience managing thousands of large-scale and utility-scale solar and storage projects, earning them recognition as industry-leading subject matter experts. Furthermore, our Power Engineers offer specialized support to PPE's engineering projects and teams, conducting power system studies, designing protection systems, and engineering for microgrids. With PPE, you gain access to unparalleled expertise, energy solutions and support, ensuring your projects are successful and innovatively advanced.
Pre & Post Interconnection Application Services
Interconnection Studies
Load flow, short circuit, dynamic, and protection studies supporting solar and storage interconnection, grid compliance, and utility approval.
Interconnection Planning
Utility interconnection planning, PSCAD and PSS®E study scoping, queue strategy, network impact coordination, cost estimates, and documentation support.
Utility Coordination
Utility submissions, technical documentation, PSSE and PSCAD modeling, impact study support, utility meetings, and drawing revisions through approval.
Power System Studies
Load flow, reactive power, short circuit, cable ampacity, arc flash, grounding, lightning risk assessment, and equipment evaluation power system studies.
Protection System
Protection coordination studies, SEL relay RDB file generation, control and wiring schematics, and testing procedures for solar and storage projects.
Microgrids
Preliminary design, full engineering, interconnection, protection systems, power studies, DER integration, load management, and commissioning support.
Featured Articles
The Power of Interconnection Planning - Why Solar Developers Need PSCAD, PSS®E, and ASPEN Expertise
Interconnection queues are more congested than ever, and the path to approval is increasingly opaque. Developers are ...
Read More
Intro to Relays #2 - ANSI/IEEE Relay Numbers
Protective Relays are an advanced area of electrical engineering and contracting that can be intimidating, but they ...
Read More
Intro to Relays #1 - What are Relays, CTs & PTs?
Protective Relays are an advanced area of electrical engineering and contracting that can be intimidating, but they ...
Read MoreAreas of Expertise
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.
Videos
Smarter Solar Design with SAM Simulations | Solar + Storage Engineering
Why Developers & EPCs Need to Prioritize Power Studies for All Solar + Storage Projects
Unrivaled Experience & Knowledge
- Over 3,400 full designs (100kW & larger) completed & submitted for permits, plus other involvement in over 17,000 DG and Utility Scale project touchpoints.
- Essentially all this experience is still with the company, thanks to high retention rates for engineers & project managers.
- We only design solar + storage systems and understand it at a deep level that a jack-of-all-trades firm can't match.
- This experience allows us to solve complex engineering challenges and identify unforeseen risks in design & construction so clients can maximize the performance and profits of their solar + storage system.

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Large In-House Team for Fast Turnaround
- 130+ in house engineers, including 58+ highly experienced project managers and professional engineers.
- Fast response time to questions from skilled project managers that understand time is money.
This brings the following benefits:
- High bandwidth enables fast turnaround time on the most challenging projects and largest portfolios.
- We can accommodate our clients' aggressive schedules.
- Minimal use of subs, so we can expedite the work as needed.
- In-house cross functional engineering teams allow us to provide clients with a broader suite of services.
Trusted by Leading Developers & EPCs
Eric Sieckmann
Hartman Hoel
Peter Misthos
High Quality Drawings & Reports
We are known throughout the industry for our detailed, easy to understand construction drawings for our non-engineer clients and installers.
This brings the following benefits for clients:
- ProcurementAvoids mistakes when ordering materials.
- PermitsFaster approval by the AHJ
- InstallersAvoid Errors or bad practices during installation

Value Engineering Tips See More
6 Practical Insights for Standalone Battery Energy Storage System (BESS) Design
Driven by grid stability & reliability needs and by the integration of renewables, Standalone BESS (battery energy storage systems) are moving from pilot to mainstream. But anyone who has tried to develop or engineer one, especially in dense, highly..
The Power of Interconnection Planning - Why Solar Developers Need PSCAD, PSS®E, and ASPEN Expertise
Interconnection queues are more congested than ever, and the path to approval is increasingly opaque. Developers are spending serious money on land control, studies, and legal work, only to hit delays when grid studies surface surprises late in the..
In the public eye, there is hardly a conversation about utility-scale solar without addressing the fear of losing valuable farmland. Debates with community involvement tend to be polarized. Developers see open fields as ideal for solar, while..
U.S. distributed energy resources (DER) capacity is expected to increase by 217 GW by 2028, according to a Wood Mackenzie Report. A staggering number, even to the seasoned solar industry professional. One of the challenges is connecting the massive..
