Utility-Scale | Transmission Scale | Solar and BESS Engineering Services
Pure Power Engineering is the definitive choice for comprehensive engineering solutions, catering to both pre- and post-interconnection applications across utility-scale solar power and energy storage projects. Our seasoned team of engineers and project managers has successfully spearheaded thousands of significant solar and storage initiatives, providing expertise in grid-tied systems, cost-effective battery banks, and optimized energy storage systems. Whether assessing the ideal number of batteries or designing a seamless battery system, we are recognized as the industry's subject matter experts, ensuring that every project is both efficient and resilient.

We have completed permit drawing sets for 3,400+ solar and energy storage projects between 100 kW - 500 MW!
Boasting more than 14 years of industry leadership and a robust team of over 130 in-house engineers, 58+ project managers and professional engineers, we possess the deep experience and technical prowess required to deliver superior engineering solutions. Our commitment is to enhance generation revenue for commercial solar systems while minimizing costs and empowering our clients to expedite the completion of solar and storage projects. This approach accelerates project timelines and significantly boosts profitability, facilitating scalable growth for our clients in the renewable energy domain.
Featured Articles
Messenger Wire Systems for Ground-Mount Solar —How to Get Them Right
Messenger wire systems have become the preferred choice for wire management in large-scale ground-mount solar projects. ...
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How Coordination Between Electrical, Civil, and Racking Determines Utility-Scale Solar Project Success
Well-executed utility-scale solar projects follow a specific pattern, allowing for completion on time and without ...
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Design Recommendations for Central Inverters in Utility-Scale Solar Projects
When designing utility-scale solar energy projects, optimizing central inverters is a crucial aspect that project ...
Read MoreTransmission Services at a Glance
Development Engineering – Optimization / 10%
Early-stage engineering focused on feasibility, system optimization, interconnection strategy, and risk identification to inform investment and project viability.
Project Engineering – 30% · 60% · 90% · IFC
Progressive engineering delivering coordinated civil, structural, electrical, and power engineering designs from preliminary layouts through Issued for Construction documentation.
Project Permitting
Electrical, structural and power engineering support for AHJ and utility permitting, including interconnection documentation, detailed comment responses, design revisions, and coordination through final approvals.
Site Improvement – Construction Phase
Construction-phase engineering support for site civil and infrastructure improvements, addressing field conditions, design clarifications, and constructability issues.
Plant Construction – Construction Phase
Ongoing electrical and power engineering support during plant construction, including RFIs, field coordination, design updates, protection system reviews, and resolution of complex technical issues.
Testing (Construction Phase)
Power engineering-led testing and commissioning support, including protection settings validation, system performance testing, utility witness testing, documentation review, and readiness for energization and turnover.
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Highlighted Projects
ESCALANTE PREWITT, NEW MEXICO
Pure Power provided electrical engineering services for the award winning Escalante 238 MWDC utility-scale PV plant project in New Mexico. Our contributions spanned a wide range of electrical engineering services, including analyses of power systems, assessments of cable thermal properties, evaluations of short circuits, analyses of load flow and reactive power, assessments of grounding, analysis of arc-flash, and PVsyst modeling.
Project At a Glance:
- AC Size – Nameplate: 226.8 MWAC
- AC Size – POI Limit: 200 MWAC
- DC Size: 238 MWp
- Utility: Tri-State
- Scope of Services: Electrical & Owner's Engineering
ASPEN FRANKLIN COUNTY, PA
Pure Power delivered electrical engineering services for the 131.5 MWDC Aspen utility-scale project. Our role encompassed a broad spectrum of electrical engineering tasks, including electrical design, development of stringing plans, creation of one-line diagrams, DC feeder schedules, details on grounding and trenching, equipment elevation specifics, and a variety of power system studies.
Project At a Glance:
- AC Size - Nameplate: 118.8 MWAC
- DC Size - POI Limit: 100 MWAC
- DC Size: 131.5 MWp
- Utility: Mid-Atlantic (PJM)
- Scope of Services: Electrical Engineering
BELL TEXAS
Pure Power provided electrical engineering services for the 123 MWDC Bell utility-scale project. Our role encompassed a broad spectrum of electrical engineering tasks, including electrical design, stringing plans, one-line diagrams, DC feeder schedules, details on grounding and trenching, equipment elevation specifics, and a variety of power system studies.
Project At a Glance:
- Solar AC Size - Nameplate: 113 MWAC
- Solar AC Size - POI Nameplate: 113 MWAC
- Storage - AC Size - Nameplate: 121 MWAC
- Storage DC Size: 123 MWDC
- Solar DC Size: 123 MWDC
- Utility: Oncor
- Scope of Services: Electrical Engineering
STAGECOACH MACON COUNTY, GA
We provided a comprehensive suite of electrical, structural, and owner's engineering services for the monumental 100 MWDC Stagecoach utility-scale solar endeavor. PPE executed a wide range of services for this project, demonstrating versatility and skill. From crafting the electrical site plan and detailing PV module connections to designing the inverter foundation, performing power system studies, and facilitating utility coordination, Pure Power's contributions were pivotal in bringing this project from development to completion.
Project At a Glance:
- AC Size - Nameplate: 90 MWAC
- AC Size - POI Limit: 80 MWAC
- DC Size: 100 MWp
- Utility: Southern Company
- Scope of Services: Electrical, Structural & Owner's Engineering
Engineering Services
Preliminary Engineering
Project design, technical studies, reports, infrastructure analysis, and drawings to evaluate feasibility and advance projects from concept to construction.
Engineer of Record & Design
Site surveys and studies, PV, inverter, and battery sizing, calculations, and code-compliant drawing sets for solar and storage systems.
Structural Engineering
Existing structure analysis, new structural design, equipment foundations, structural support solutions, utility pole design, and reinforcement strategies.
Power Engineering
Pre- and post-interconnection power engineering services, including system modeling, protection design, utility coordination, and grid compliance support.
Owner’s Engineering
Technical risk management, due diligence, performance validation, quality reviews, energy modeling, design evaluation, and project 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
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..
