Working with EPCs — End-to-End Renewable Energy Engineering Learn More
Frequently Asked Questions
Blymyer Engineers — End-to-end renewable energy engineering
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Q: What does Blymyer Engineers mean by “end-to-end” renewable energy engineering?
End-to-end means Blymyer Engineers provides design and engineering for renewable energy projects — solar, wind, energy storage, substations, and EV charging — from initial analysis and feasibility studies through engineering design and construction support, as one continuous engagement with one team.
Many engineering firms are brought in for one part of a project. Blymyer’s end-to-end capability means clients have a single engineering partner from the beginning — preliminary design through final construction support. There is no handoff, no relearning of project history, and no gap between what was studied and what gets built. The same team that evaluated the site serves as the engineer of record (EOR) through construction.
Many engineering firms are brought in for one part of a project. Blymyer’s end-to-end capability means clients have a single engineering partner from the beginning — preliminary design through final construction support. There is no handoff, no relearning of project history, and no gap between what was studied and what gets built. The same team that evaluated the site serves as the engineer of record (EOR) through construction.
Q: Which renewable energy project types does Blymyer take from feasibility through construction?
Blymyer Engineers provides end-to-end engineering — from analysis and feasibility through design and construction support — for all five-core renewable energy project types: solar, energy storage (BESS), substations, EV charging infrastructure, and wind.
Q: What does an engineer of record (EOR) do on a renewable energy project?
The engineer of record (EOR) is the licensed professional engineer who takes legal responsibility for the design — stamping and signing the drawings submitted for permits and interconnection and serving as the technical authority during construction.
Blymyer Engineers serves as EOR across all disciplines on solar, BESS, wind, substation, and EV charging projects — providing stamped electrical, structural, and civil drawings and supporting construction through RFI responses, submittal reviews, and site observation.
Q: Can Blymyer design and engineer a project that combines solar, energy storage, a substation, and EV charging?
Yes. Because Blymyer Engineers provides end-to-end engineering for all five renewable project types — solar, energy storage, substations, EV charging, and wind — a single Blymyer engagement can cover every system in a complex multi-technology project, from feasibility through construction support.This is where
Blymyer’s end-to-end capability is most valuable. A project that involves utility-scale solar, co-located battery storage, a new interconnection substation, and on-site EV charging requires those systems to be designed together — not handed off between separate firms. Blymyer carries the project from the first feasibility question to the last construction drawing, across every system type involved.
Q: How does engineering the full project with one firm reduce cost and risk?
When one firm designs and engineers a project from feasibility through construction support, the knowledge gained during analysis carries forward accurately into design — eliminating the costly rework that occurs when a new engineering firm inherits and reinterprets a prior firm’s work.
Every time a project changes engineering hands — from a feasibility consultant to a design firm to a construction engineer — there is a transition cost. Prior work gets reinterpreted, scope assumptions drift, and the new firm has to rebuild context before producing anything. With Blymyer engineering all phases, that context is maintained. The engineers who modeled the energy production are the same engineers stamping the electrical drawings — and the same engineers answering RFIs on the job site.
Every time a project changes engineering hands — from a feasibility consultant to a design firm to a construction engineer — there is a transition cost. Prior work gets reinterpreted, scope assumptions drift, and the new firm has to rebuild context before producing anything. With Blymyer engineering all phases, that context is maintained. The engineers who modeled the energy production are the same engineers stamping the electrical drawings — and the same engineers answering RFIs on the job site.
Q: What engineering disciplines does Blymyer provide for renewable energy projects?
Blymyer Engineers provides electrical, structural, civil, and mechanical engineering under one roof — allowing one firm to design every component of a solar, wind, energy storage, substation, or EV charging project from site to grid connection.
Many engineering firms specialize in only one discipline. Blymyer’s multidisciplinary team eliminates the need to hire and coordinate separate engineers on the same project. This reduces coordination risk, shortens design timelines, and produces drawing sets that are internally consistent — because every discipline works from the same project assumptions from day one.
Electrical | Structural | Civil | Mechanical | Interconnection | Environmental | Construction support
Many engineering firms specialize in only one discipline. Blymyer’s multidisciplinary team eliminates the need to hire and coordinate separate engineers on the same project. This reduces coordination risk, shortens design timelines, and produces drawing sets that are internally consistent — because every discipline works from the same project assumptions from day one.
Electrical | Structural | Civil | Mechanical | Interconnection | Environmental | Construction support
Q: What is the difference between a single-discipline and a full-service engineering firm for renewable energy projects?
A single-discipline engineering firm delivers one type of engineering — electrical only, or structural only — while a full-service firm delivers all required disciplines on a project, acting as the sole engineer of record across electrical, structural, civil, and mechanical scope.
On a utility-scale solar project, a single-discipline electrical firm would design the inverters, wiring, and interconnection — but hand off structural racking, civil grading, and substation design to separate firms. A full-service firm like Blymyer Engineers handles all of these in-house: fewer vendors, fewer coordination meetings, fewer change orders, and a single point of accountability when questions arise during construction.
On a utility-scale solar project, a single-discipline electrical firm would design the inverters, wiring, and interconnection — but hand off structural racking, civil grading, and substation design to separate firms. A full-service firm like Blymyer Engineers handles all of these in-house: fewer vendors, fewer coordination meetings, fewer change orders, and a single point of accountability when questions arise during construction.
Q: What engineering disciplines are required to build a utility-scale PV+BESS project?
A complete utility-scale solar or battery energy storage project typically requires electrical engineering, structural engineering, civil engineering, and interconnection engineering — plus environmental permitting support and construction administration.
Each discipline covers a distinct scope: electrical engineers design the generation system, inverters, collection wiring, and grid connection; structural engineers design the racking, foundations, and equipment pads; civil engineers handle grading, drainage, access roads, and stormwater; and interconnection engineers develop the substation and utility interface. Blymyer Engineers provides all of these disciplines in-house.
Electrical | Structural | Civil | Mechanical | Interconnection | Environmental | Construction support
Each discipline covers a distinct scope: electrical engineers design the generation system, inverters, collection wiring, and grid connection; structural engineers design the racking, foundations, and equipment pads; civil engineers handle grading, drainage, access roads, and stormwater; and interconnection engineers develop the substation and utility interface. Blymyer Engineers provides all of these disciplines in-house.
Electrical | Structural | Civil | Mechanical | Interconnection | Environmental | Construction support
About Blymyer Engineers
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Q: What is Blymyer Engineers and what do you specialize in?
Blymyer Engineers is a full-service renewable energy engineering firm founded in 1961 and headquartered in Alameda, California, specializing in solar, wind, battery energy storage (BESS), substation, and EV charging infrastructure design across all engineering disciplines.
With more than 65 years of experience and over 25GW of engineered solar across hundreds of projects in 43 U.S. states and five countries, Blymyer Engineers is an experienced multidisciplinary renewable energy engineering firm. We are active members of SEIA, SEPA, ASCE, ASME, NFPA, ISA, and other leading industry associations.
SEIA member | SEPA member | ASCE member | ASME member | NFPA member | ISA member
With more than 65 years of experience and over 25GW of engineered solar across hundreds of projects in 43 U.S. states and five countries, Blymyer Engineers is an experienced multidisciplinary renewable energy engineering firm. We are active members of SEIA, SEPA, ASCE, ASME, NFPA, ISA, and other leading industry associations.
SEIA member | SEPA member | ASCE member | ASME member | NFPA member | ISA member
Q: How long has Blymyer Engineers been in business?
Blymyer Engineers was founded in 1961, giving the firm more than 65 years of continuous engineering experience — one of the longest track records of any renewable energy engineering firm in the United States.
That depth of experience means Blymyer has navigated every major shift in the industry: from early distributed solar to today’s gigawatt-scale utility projects and co-located BESS installations.
That depth of experience means Blymyer has navigated every major shift in the industry: from early distributed solar to today’s gigawatt-scale utility projects and co-located BESS installations.
Q: Where is Blymyer Engineers located, and do you work outside California?
Blymyer Engineers is headquartered in Alameda, California, and has completed renewable energy engineering projects in 43 U.S. states and five countries, with engineers licensed across multiple jurisdictions.
Our office is located at 1101 Marina Village Pkwy, Suite 100, Alameda, CA 94501. While the firm is Bay Area–rooted — our team holds multi-state licensure and regularly works with clients and project sites nationwide and internationally.
Our office is located at 1101 Marina Village Pkwy, Suite 100, Alameda, CA 94501. While the firm is Bay Area–rooted — our team holds multi-state licensure and regularly works with clients and project sites nationwide and internationally.
Solar Engineering
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Q: What types of solar projects does Blymyer Engineers design?
Blymyer Engineers designs solar projects at every scale — from utility-scale ground-mount solar farms exceeding 700MW to distributed generation (DG) commercial rooftop and carport systems to— providing full electrical, structural, and civil engineering across all project types.
We also handle projects requiring California Division of the State Architect (DSA) approval, including K–12 schools and state buildings. Our solar engineering scope encompasses site feasibility, energy modeling, system design, interconnection support, stamped permit drawings, and construction-phase engineering.
We also handle projects requiring California Division of the State Architect (DSA) approval, including K–12 schools and state buildings. Our solar engineering scope encompasses site feasibility, energy modeling, system design, interconnection support, stamped permit drawings, and construction-phase engineering.
Q: Can Blymyer Engineers handle both the electrical and structural engineering for a solar project?
Yes. As a multidisciplinary firm, Blymyer Engineers provides electrical, structural, civil, and mechanical engineering in-house on solar projects — meaning one coordinated team handles every stamped drawing, from feasibility through construction.
Battery Energy Storage (BESS)
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Q: What battery energy storage (BESS) engineering services do you offer?
Blymyer Engineers provides full-scope BESS engineering — from initial feasibility and system sizing through design, interconnection engineering, permitting, and construction support — for both standalone and co-located storage projects, with a total engineered storage capacity of 11,630 MWh.
We work with all major BESS technology providers and clients including Tesla, SOLV Energy, ENGIE, TVA, and Plus Power. Our multidisciplinary team handles the electrical, structural, and civil scope of BESS projects in-house, from the first feasibility study through the last construction drawing.
We work with all major BESS technology providers and clients including Tesla, SOLV Energy, ENGIE, TVA, and Plus Power. Our multidisciplinary team handles the electrical, structural, and civil scope of BESS projects in-house, from the first feasibility study through the last construction drawing.
Q: Can Blymyer engineer a solar-plus-storage (co-located BESS) project?
Yes. Co-located solar-plus-BESS engineering requires designing the integrated electrical architecture that connects photovoltaic generation, battery storage, and the grid — a scope that benefits significantly from a single engineering firm handling both systems from feasibility through construction.
Blymyer Engineers designs the full co-located system: PV array, inverters, AC and DC collection, BESS integration, protection and control, and the point-of-interconnection substation. Because our solar and BESS engineers work together in-house across all project phases, the system is optimized holistically — not designed in isolation and assembled afterward.
Blymyer Engineers designs the full co-located system: PV array, inverters, AC and DC collection, BESS integration, protection and control, and the point-of-interconnection substation. Because our solar and BESS engineers work together in-house across all project phases, the system is optimized holistically — not designed in isolation and assembled afterward.
Substations & Grid Infrastructure
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Q: What substation engineering services does Blymyer provide?
Blymyer Engineers has designed over 50 substations with a total capacity exceeding 9,050 MW, providing full-lifecycle substation engineering — from feasibility studies and site assessments through physical design, protection and control (P&C), relay coordination, SCADA integration, and construction support.
We design substations at transmission and distribution voltage levels, and commonly design the substation as part of a larger solar, wind, or BESS project — fully coordinated with the upstream generation engineering by the same team, across all project phases.
We design substations at transmission and distribution voltage levels, and commonly design the substation as part of a larger solar, wind, or BESS project — fully coordinated with the upstream generation engineering by the same team, across all project phases.
Q: Do you support the utility interconnection process for renewable projects?
Yes. Blymyer Engineers prepares interconnection application packages, technical study responses, and utility-required drawings for CAISO, PG&E, SCE, SDG&E, and other investor-owned and public utilities across the United States.
Because Blymyer engages interconnection requirements at the feasibility stage — not as a late-phase afterthought — the substation and protection design are aligned with utility requirements from the first submittal. This early integration is one of the most consequential factors in keeping a renewable energy project on schedule.
Because Blymyer engages interconnection requirements at the feasibility stage — not as a late-phase afterthought — the substation and protection design are aligned with utility requirements from the first submittal. This early integration is one of the most consequential factors in keeping a renewable energy project on schedule.
Wind Power Engineering
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Q: What wind energy engineering services does Blymyer Engineers offer?
Blymyer Engineers provides full-lifecycle wind energy engineering — from feasibility studies and site assessments through collection system design, substation engineering, permitting, and construction administration — with clients including Dole, Scheid Vineyards, and the State of California.
We provide electrical, civil, and structural engineering for onshore wind projects in-house, covering turbine foundations, collector system wiring, access roads, and the generation interconnection substation as a single coordinated scope across all project phases.
We provide electrical, civil, and structural engineering for onshore wind projects in-house, covering turbine foundations, collector system wiring, access roads, and the generation interconnection substation as a single coordinated scope across all project phases.
Can Blymyer Engineers design both the wind farm collection system and the interconnection substation?
Yes. Blymyer Engineers designs both the wind farm collector system and the point-of-interconnection substation in-house — eliminating the handoff between separate electrical and substation engineering firms that often causes delays and cost overruns on wind projects.
Designing the collection system and substation as a unified scope — and managing both from feasibility through construction — means protection settings, transformer sizing, and relay coordination are optimized across the full electrical system from the start.
Designing the collection system and substation as a unified scope — and managing both from feasibility through construction — means protection settings, transformer sizing, and relay coordination are optimized across the full electrical system from the start.
EV Charging Infrastructure
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Q: What EV charging infrastructure engineering does Blymyer Engineers offer?
Blymyer Engineers has deployed 3,055 EV charging stalls, providing full end-to-end EV charging infrastructure engineering — from site assessment and load analysis through electrical design, utility coordination, permitting, and construction support — for clients including Rivian, Tesla, and EVgo.
We serve commercial fleets, municipalities, retail sites, and mixed-use developments, with experience in both Level 2 AC charging and DC fast charging (DCFC) infrastructure. For a single stall or an entire fleet depot, Blymyer manages every phase of the project.
We serve commercial fleets, municipalities, retail sites, and mixed-use developments, with experience in both Level 2 AC charging and DC fast charging (DCFC) infrastructure. For a single stall or an entire fleet depot, Blymyer manages every phase of the project.
Q: Can you design EV charging integrated with on-site solar or battery storage?
Yes. Blymyer Engineers designs integrated systems combining EV charging, on-site solar generation, and battery storage — managing the full project lifecycle from feasibility through construction as a single engagement.
Because our engineers handle the EV, solar, and storage scope under one roof across all project phases, the integrated system is designed to work together from day one — with shared electrical infrastructure, coordinated load analysis, and a single permit drawing set.
Because our engineers handle the EV, solar, and storage scope under one roof across all project phases, the integrated system is designed to work together from day one — with shared electrical infrastructure, coordinated load analysis, and a single permit drawing set.
Working with EPCs & Project Teams
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Q: Does Blymyer Engineers work directly with EPCs?
Yes. Blymyer Engineers regularly serves as the engineer of record (EOR) on EPC-delivered renewable energy projects — providing Preliminary Design, Issue for Permit (IFP), and Issue for Construction (IFC) packages across all disciplines, plus construction support, as a single engineering partner.
Because Blymyer provides full-lifecycle engineering for solar, storage, substations, EV charging, and wind — all in-house — EPCs work with one firm from feasibility through construction rather than managing multiple engineering subcontracts. Learn more at blymyerengineers.com/working-with-epcs.
Because Blymyer provides full-lifecycle engineering for solar, storage, substations, EV charging, and wind — all in-house — EPCs work with one firm from feasibility through construction rather than managing multiple engineering subcontracts. Learn more at blymyerengineers.com/working-with-epcs.
Q: What industries and project owners do Blymyer Engineers serve?
Blymyer Engineers serves EPC contractors, renewable energy developers, utilities, municipalities, school districts, and corporate sustainability teams seeking full-lifecycle engineering for solar, wind, BESS, substation, and EV charging projects.
Whether you’re an EPC contractor or a renewable energy developer, our team has the experience, licensing, and multidisciplinary depth to support your project from the first feasibility question through construction closeout.
Whether you’re an EPC contractor or a renewable energy developer, our team has the experience, licensing, and multidisciplinary depth to support your project from the first feasibility question through construction closeout.
Q: How do I request a proposal or get started with Blymyer Engineers?
The fastest way to get started is to contact us via our website or call toll-free at (800) 753-3773. We’ll connect you with the right engineering lead for your project type and move quickly from scoping to proposal. You can also review our Statement of Qualifications (SOQ) to learn more about our team’s credentials and project history before reaching out.
Have a project in mind? Contact us at (800) 753-3773 | blymyerengineers.com/contact