Interconnecting inverter-based generation to the grid introduces power system engineering challenges that differ fundamentally from conventional synchronous generation. Renewable energy power system engineering services from Elliot Engineering address these complexities across solar, wind, and battery energy storage projects. Our engineers perform system analysis, protection and control design, and renewable energy substation design services from feasibility-level studies through commissioning and energization. We work directly with developers, EPCs, and generation owners to deliver standards-compliant engineering at every project phase.
Substation Design and System Integration for Renewable Generation
Renewable energy substation design services from Elliot Engineering cover collector substation and point-of-interconnection (POI) substation engineering. Our design engineering and EPC team develops single-line diagrams, physical arrangement drawings, grounding grid designs, medium-voltage collector system layouts, step-up transformer specifications, and SCADA/communication system integration packages.
Each design accounts for the variable generation profiles and voltage regulation characteristics specific to inverter-based resources, ensuring coordination with utility protection schemes at the point of common coupling.
Analysis and Studies for Renewable Interconnection
Accurate system modeling is critical when inverter-based resources produce limited and non-linear fault current contributions. Our solar power engineering analysis services and broader renewable energy power system engineering services include:
- Load flow and short circuit studies calibrated to inverter fault response characteristics
- Protective device coordination for collector systems and POI substations
- Voltage regulation and flicker analysis per IEEE 1453
- Harmonic distortion assessments for PV inverter output
- Anti-islanding protection scheme design and relay settings development
- Arc flash hazard analysis for collector substations and O&M facilities per NFPA 70E
- NERC compliance support including MOD-025-2 testing and plant controller model validation for generation owners subject to registration requirements
Our planning and studies engineers use advanced modeling tools to evaluate interconnection feasibility, system impact, and protection settings that coordinate with the utility’s existing relay schemes.
Full-Lifecycle Project Support from Engineering Through Energization
Many renewable energy developers and EPCs need more than a study report or a set of design drawings. They need an engineering partner that stays engaged from initial interconnection analysis through construction oversight and final system commissioning. Elliot Engineering provides that continuity. Our project and construction management team develops accurate specifications that reduce change order risk and improve construction execution.
Our engineers support procurement by preparing detailed equipment specifications for transformers, switchgear, and protection systems, and our integration with Davis H. Elliot’s utility construction capabilities provides access to field crews, material procurement resources, and EPC delivery when the project scope calls for a turnkey approach.
Once construction is complete, our testing and commissioning engineers verify every relay, breaker, and control circuit against design intent before the facility is energized.
Specialized Services
Planning & Studies
Design & EPC Offerings
Application & Consulting
Project Management
Testing & Commissioning
Scope Your Next Renewable Energy Project
Elliot Engineering’s multi-disciplined team of electrical engineers, civil engineers, and CAD personnel brings the same analytical rigor to renewable projects that we apply across utility and industrial infrastructure. Contact us to discuss renewable energy substation design services or system study requirements for your next project.
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