Preliminary engineering is the early-stage design and analysis that moves a solar or storage project from concept toward construction. At Pure Power it covers preliminary site and array layouts, interconnection and utility coordination, energy modeling, and the studies developers need to de-risk a project before committing to full design. It gives you the technical foundation to pursue interconnection approval, financing, and permitting with confidence.

Typical deliverables include preliminary site and array layouts optimized for capacity and constructability, single-line diagrams and technical exhibits for utility interconnection applications, FAA-compliant glint and glare analysis, and PVsyst energy models with production estimates. These are prepared to support interconnection, permitting, and financing. Pure Power is known throughout the industry for detailed, easy-to-understand drawings that help avoid procurement mistakes and installation errors later.

A glint and glare analysis evaluates whether sunlight reflecting off solar panels could affect nearby roads, homes, or air traffic. It's frequently required for permitting and is especially important for projects near airports, where FAA compliance is necessary. Pure Power performs FAA-compliant glint and glare studies as part of preliminary engineering to support visual impact evaluation and approvals.

PVsyst energy modeling simulates how much electricity a solar project will generate over its lifetime, accounting for site conditions, equipment, and system losses. Accurate production estimates matter because lenders and investors rely on them to underwrite a project. Pure Power provides PVsyst modeling, loss analysis, and third-party model review to support project development and financing decisions.

Pure Power provides preliminary engineering for commercial and industrial (C&I) solar, utility-scale solar, community solar and ground-mounted systems, solar carports, battery energy storage systems (BESS), microgrids, and repowering projects. With 130+ in-house engineers and more than 3,400 completed solar and storage designs, the team supports projects nationwide from concept through construction.

The Engineer ofRecord is the licensed engineering firm that takes professional responsibility for a project's design,producing and stamping the construction documents used for permitting and building. As EOR, PurePower delivers comprehensive site surveys, power system analysis, precise calculations, and code-compliant, constructible drawing sets. This is the party that stands behind the engineering when a solaror storage project goes to permitting, utility review, and construction.

EOR services include accurate field site surveys, utility-grade power system studies, system optimization, and detailed construction drawing sets developed for permitting, utility review, and construction. The drawings are code-compliant, value-engineered, and risk-mitigated, with clear coordination across disciplines. Pure Power is known throughout the industry for drawings that non-engineer clients and installers can easily understand, which helps avoid procurement mistakes and installation errors.

Site surveys collect the field data that design decisions are built on, helping identify constraints early and reduce risk during permitting and construction. Catching site issues up front prevents costly redesigns and change orders later. Pure Power performs site surveys as a core part of its EOR service to ground the design in real conditions.

Pure Power provides utility-grade power system studies including load flow, short circuit, protection, and dynamic analysis. These studies support interconnection and grid compliance, ensuring the system will operate safely and meet utility requirements. They're a key part of producing an approvable, buildable design.

Pure Power serves as EOR for commercial and industrial (C&I) solar, utility-scale solar, community solar, solar carports, battery energy storage systems (BESS), microgrids, and repowering projects. With 3,400+ completed designs of 100kW and larger, 17,000+ total project touchpoints, and 130+ in-house engineers, the firm brings deep experience to projects of nearly any scale.

System design is the engineering that turns a project concept into a precise, buildable plan — determining the optimal sizing and placement of PV modules, inverters, and batteries, then documenting it in code-compliant drawings. Pure Power's system design covers site surveys, calculations, power system studies, and constructible drawing sets coordinated across electrical, structural, and civil scopes. The goal is a design that performs as modeled, passes review, and installs cleanly.

Correct sizing balances energy production, equipment cost, site constraints, and interconnection limits — for example, choosing the right module count, inverter capacity, and DC-to-AC ratio, plus battery capacity for storage projects. Pure Power specializes in accurately determining the optimal sizing and placement of PV modules, inverters, and batteries so the system delivers the most value without over- or under-building. This optimization directly affects both project economics and long-term performance.

Code-compliant means the design meets the applicable electrical, structural, and safety codes required for permitting and construction, while value-engineered means it achieves those requirements at the lowest reasonable cost and risk. Pure Power produces code-compliant, value-engineered, and risk-reduced drawing sets. Together these reduce change orders, procurement mistakes, and rework during construction.

Yes. Pure Power develops constructible drawing sets with coordination across electrical, structural, and civil scopes, so the disciplines align rather than conflict in the field. This coordination is what prevents the costly clashes that arise when scopes are engineered in isolation. It results in a single, cohesive set of documents for permitting, utility review, and construction.

Pure Power provides system design for commercial and industrial (C&I) distributed generation, utility-scale solar and battery energy storage, ground-mounted systems, rooftop installations, solar carports, and microgrid and repowering projects. Backed by 130+ in-house engineers and 3,400+ completed full designs of 100kW and larger, the firm handles projects across the distributed generation and utility-scale sectors.

Structural engineering makes sure a roof, ground-mount, or equipment support can safely carry the loads a solar or storage system adds. Pure Power's structural services include rooftop structure review, new solar and storage structure design, electrical equipment foundation design, utility pole design, and reinforcement solutions. The team draws on over 70 years of collective structural experience, and will conduct site surveys and analysis when existing project data isn't sufficient.

A structural review determines whether your roof can handle the added weight and forces of a solar system, and identifies any modifications needed. Pure Power performs on-site rooftop evaluations to confirm solar feasibility, assess racking compatibility, and facilitate approval from the Authority Having Jurisdiction (AHJ) or a third-party reviewer. If the structure isn't ready as-is, the team can design reinforcements to make it work.

Yes. Pure Power designs foundations for pads, skids, transformers, switchgear, and other ground-mounted equipment, using solutions such as concrete pads and steel piles to support a range of loads. The firm also handles utility pole design with poles, guy wires, and anchors engineered for extreme loading conditions. These foundations keep critical electrical equipment stable and code-compliant over the life of the project.

Structures deemed unfeasible can often still host solar with the right reinforcement. Pure Power develops reinforcement solutions that address load constraints, code requirements, and third-party review, enabling solar on structures that initially couldn't accommodate it. This can turn a "no" into a buildable project without starting over.

Pure Power provides structural engineering for commercial and industrial rooftop systems, utility-scale ground-mounted installations, solar carports, battery energy storage systems, and community solar projects. With 130+ in-house engineers, including 58+ experienced project managers and professional engineers, the firm can turn around complex structural work quickly.

Civil engineering covers the land, site, and water aspects of getting a solar or storage project built — from site feasibility through construction completion. Pure Power's civil services span site feasibility and due diligence, conceptual site planning, stormwater and drainage design, land use permitting, and construction administration. It's the discipline that makes the ground ready and the site plan approvable, nationwide.

Pure Power performs hydraulic and hydrologic analyses that model how water moves across a site, then designs stormwater management systems for detention, treatment, and conveyance. Quantifying drainage behavior up front prevents erosion, flooding, and permit problems later. This work is essential for ground-mounted and utility-scale projects where large areas change how a site sheds water.

Yes. Pure Power provides land use permitting design with engineered, construction-ready plans, plus permit support that includes agency coordination and submissions. This helps move a project through the approval process with authorities and reduces back-and-forth delays. The team also produces detailed civil construction documents and specifications for the build.

Yes. Pure Power offers construction administration, including submittal review, handling Requests for Information (RFIs), and site coordination oversight during the building phases. Staying involved through construction keeps the built work aligned with the engineered plans. It also gives contractors a responsive engineering point of contact when questions arise in the field.

Pure Power provides civil engineering for commercial and industrial (C&I) solar, utility-scale solar, community solar, solar carports, battery energy storage systems (BESS), microgrids, and repowering projects. With 130+ in-house engineers including 58+ Professional Engineers and Project Managers specialized in renewable energy, the firm supports civil scopes on projects across the country.

Interconnection services get a solar or storage project approved to connect to the utility grid — preparing the technical documents, studies, and applications the utility requires. Pure Power provides PE-sealed diagrams, full utility application filing, and grid modeling to move projects through congested queues and shifting utility requirements. The goal is to clear interconnection review with fewer rejections and delays.

Applications commonly stall because of congested utility queues, changing utility requirements, or a single missing detail that gets the whole package kicked back. Pure Power addresses this with complete, PE-sealed technical packages and a completeness review before submission, so applications go in right the first time. The team also tracks fees and payment deadlines and supports resubmission if the utility requests changes.

Pure Power prepares PE-sealed one- and three-line diagrams stamped by licensed Professional Engineers, site plans built from preliminary layouts on Pure Power's titleblock, and the complete technical packages utilities require for evaluation. Two revisions are included — one on client feedback and one on the utility's response. These are the documents that make an application reviewable and approvable.

Pure Power builds the grid models utilities require for interconnection studies, including PSCAD models (with or without inverter) delivered as .PSC files, PSS®E equivalence models with dynamic (.dyr) files per Siemens standards, and ASPEN OneLiner models (.olr) at the project, equipment, or inverter level. Each model is scoped to the specific interconnection requirements of the project. This modeling supports network impact coordination and study review.

Yes. Pure Power handles full application preparation tailored to each utility's requirements, compiles and reviews the complete package, and submits it directly to the utility through the required method. The team also monitors interconnection fees and payment deadlines and supports the project through utility approval and any resubmission. It's an end-to-end interconnection filing service for C&I, utility-scale, community solar, BESS, microgrid, and repowering projects.

Power engineering is the specialized discipline that makes sure a solar or storage system connects to and operates safely on the grid — through power system studies, protection design, and interconnection support. Pure Power's power engineering team handles pre- and post-interconnection studies, protection systems, microgrid engineering, and utility coordination. It's the expertise that keeps a project compliant, safe, and approvable from the utility's perspective.

Pure Power conducts a full range of power system studies, including load flow, reactive power, short circuit, cable ampacity, arc flash, grounding, lightning risk assessment, and equipment evaluation. These analyses confirm the system will operate safely, meet utility requirements, and protect equipment and personnel. They support interconnection, grid compliance, and utility approval.

Protection design ensures the system detects and isolates faults quickly to keep people and equipment safe. Pure Power provides protection coordination studies, SEL relay RDB file generation, control and wiring schematics, and testing procedures. This delivers a complete, testable protection scheme ready for commissioning and utility acceptance.

Pre-interconnection studies — such as load flow, short circuit, dynamic, and protection studies — evaluate how a project will affect the grid before it's approved, supporting the utility application and queue process. Post-interconnection work carries the project through utility submissions, impact study support, meetings, and drawing revisions until approval. Pure Power supports both phases, including PSCAD and PSS®E modeling and queue strategy.

An arc flash study calculates the potential energy released during an electrical fault, which determines the safety measures and personal protective equipment required to work on the system. It's essential for worker safety and code compliance at solar and storage facilities. Pure Power includes arc flash analysis as part of its power system studies, alongside grounding, short circuit, and equipment evaluation.

Yes. For microgrids, Pure Power provides preliminary design, full engineering, interconnection, protection systems, power studies, DER (distributed energy resource) integration, load management, and commissioning support. For repowering, the firm supports system upgrades and integrations that optimize long-term asset performance — helping owners get more out of aging or underperforming projects. Both draw on the same power engineering expertise that keeps systems safe, compliant, and grid-ready.

Owner's Engineering (OE) is independent technical support that represents the interests of the people funding and owning a renewable energy project — not the contractor building it. Pure Power's OE division serves investors, owners, and financiers on commercial and utility-scale solar and storage projects, providing technical risk management and support throughout the project lifecycle. It gives owners an expert set of eyes to protect their investment from development through operation.

Yes. Pure Power's acquisition due-diligence covers design and equipment evaluation, PVsyst modeling and third-party review, construction monitoring, testing and commissioning, project turnover, and asset performance analysis. This gives buyers and lenders a clear, independent picture of a project's technical condition and expected performance before they commit capital. It's designed to surface risks that could affect value.

Pure Power's performance validation includes ASTM capacity testing, performance ratio analysis, climate-adjusted actual-versus-expected comparisons, performance guarantee calculations, recurring reports, and monitoring system configuration. Together these confirm whether a system is producing the energy it was designed and financed to deliver. Owners can use the results to hold contractors accountable to performance guarantees.

Pure Power's quality review and inspection covers AC, DC, and medium- and high-voltage electrical systems, racking and structural supports, monitoring systems, and protective relaying, along with aerial thermography and construction quality reviews. Aerial thermography, for example, can spot underperforming or faulty modules that aren't visible on the ground. These reviews catch workmanship and equipment issues before they become costly operational problems.

Yes. Pure Power provides electrical, civil, and structural design reviews, equipment and vendor evaluation, PVsyst and energy model review, EPC contract technical review, and constructability assessment. This independent review helps owners confirm the design is sound, the equipment is appropriate, and the contract terms are technically fair before construction begins. Catching problems at this stage is far cheaper than fixing them in the field.