Projects

Engineering and design services across diverse renewable energy, storage, and electrification projects.

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Project Experience

Leveraging technical expertise to deliver high-quality engineering solutions

Large-Scale Solar PV System (95 MWAC) – Utah

On Grid Engineering supported front-end design through detailed engineering for a utility-scale photovoltaic project. Scope included:

  • Complete site layout, medium-voltage cable routing, AC/DC one-line diagrams, inverter wiring, DC collection system design, trench and boring plans, PCS layouts, grounding, and perimeter fencing details
  • Fiber routing for communication network integration
  • Conducted comprehensive studies: cable ampacity analysis, load flow, grounding design, AC/DC loss evaluation, short-circuit, insulation coordination, lightning assessment, and arc flash analysis

Multi-Phase PV Farms (~16 MWAC) – Honduras

Engineered site development and electrical design for twin photovoltaic installations. Deliverables included:

  • Site layout optimization, medium-voltage cable routing, AC/DC one-line schematics, inverter wiring, DC collection network, trenching guidelines, and PCS design
  • Developed relay protection schemes and programmed protective relays to ensure robust fault detection and system protection

Remote PV Installation (6 MWAC) – Alaska

Provided turnkey engineering for a remote solar farm, including:

  • Site layout design, medium-voltage routing, AC/DC one-lines, trench and inverter wiring plans for a string inverter configuration
  • Adapted designs to unique environmental conditions, ensuring year-round reliability in extreme cold

Utility-Scale Battery Energy Storage (150 MWAC & 300 MWAC) – Arizona

On Grid Engineering served as Engineer of Record for large-scale battery storage projects. Responsibilities included:

  • Full electrical drawing set with detailed BESS integration: transformer sizing, switchgear layouts, PCS/BESS foundation and enclosure details
  • Performed load flow, cable ampacity, loss studies, short-circuit, grounding, and arc flash analyses to ensure safe and efficient operation
  • Oversaw PE stamping and compliance with state regulations

Utility-Scale Solar PV (144 MWAC) – Midwest Region

Led engineering design through 90% and issued-for-permit phases. Key tasks included:

  • Electrical engineering as Engineer of Record, including DC collection design using extended harnesses, inverter placement, and combiner box optimization for constrained sites
  • Completed short-circuit, grounding, AC/DC loss, insulation coordination, and cable ampacity studies to validate system performance

Large Solar Installation (91 MWAC) – Eastern United States

Delivered detailed engineering packages for a large photovoltaic park, including:

  • Full drawing set: site layout, medium-voltage bore routing under challenging terrain, AC/DC one-lines, inverter wiring, DC collection, trenching, and PCS design
  • Conducted short-circuit, grounding, AC/DC loss, insulation coordination, cable ampacity, and load flow studies to ensure robust system performance

Hybrid Solar + BESS System (35 MWAC PV + 35 MW BESS) – Island Region

Provided early-stage design integration for a hybrid renewable project. Scope included:

  • Site layout, medium-voltage cable routing, AC/DC one-line diagrams, inverter and BESS wiring, DC collection, trenching, PCS, and BESS detail drawings
  • Performed load flow analysis to optimize the interaction between PV array, storage assets, and hydro pump loads—ensuring stable power export to the grid

Mid-Scale Solar PV (100 MWAC) – Midwest United States

Delivered early-stage design deliverables for a 100 MW solar farm. Tasks included:

  • Site layout, medium-voltage cable routing, AC/DC one-lines, inverter wiring, DC collection, trenching, and PCS design
  • Carried out cable ampacity and load flow studies to validate system performance under variable conditions

Mid-Scale Solar PV (50 MWAC) – Kentucky

Provided conceptual to preliminary engineering, including:

  • Site layout, medium-voltage routing, AC/DC one-lines, inverter wiring, DC collection, trenching, and PCS details
  • Conducted cable ampacity and load flow studies to ensure system reliability

Large Solar PV (81 MWAC) – Kentucky

Prepared detailed design packages comprising:

  • Site layout, medium-voltage cable routing, AC/DC one-lines, inverter wiring, DC collection layouts, trenching plans, and PCS design
  • Performed cable ampacity and load flow analyses for performance validation

Utility-Scale Solar PV (80 MWAC) – North Carolina

Offered complete design support including:

  • Site layout, medium-voltage routing, AC/DC one-lines, inverter wiring, DC collection, trenching, and PCS details
  • Executed cable ampacity, load flow, and DC/AC loss studies to optimize system efficiency

Hybrid Solar + BESS (10 MWAC PV + 10 MW BESS) – Mountain Region

Engineered combined PV and storage system, including:

  • Site layout, medium-voltage routing, AC/DC one-lines, inverter wiring, DC collection, trenching, and PCS/BESS designs
  • Performed cable ampacity, load flow, and DC/AC loss studies to ensure system stability in mountainous terrain

Large Solar PV (150 MWAC) – Missouri

Reviewed and refined engineering plan sets at multiple stages (30%, 60%, 90%, IFC), focusing on:

  • Cost-saving measures such as optimized medium-voltage routing and conductor sizing
  • Load flow model improvements, including accurate transformer LTC representation
  • Quality assurance to detect infeasible DC collection design adjustments

Large Solar PV (130 MWAC) – Texas Region

Conducted multi-stage design reviews (30%, 60%, 90%, IFC), providing:

  • Recommendations to right-size medium-voltage cables based on refined ampacity simulations
  • DC collection layout adjustments to maintain voltage drop within acceptable limits

Large Solar PV (150 MWAC) – Colorado

Reviewed plan sets at 60% and 90%, delivering cost optimization suggestions such as:

  • Grounding cost savings by substituting crushed rock for additional grounding conductors in high step potential areas

Utility-Scale PV Agrivoltaics (105 MWAC) – California

On Grid Engineering served as Engineer of Record, offering:

  • Innovative DC collection approach to accommodate dual-use land for agriculture under PV arrays
  • Review of medium-voltage routing, site layout, and detailed electrical drawings
  • Carried out load flow, cable ampacity, and loss studies to validate design under agrivoltaic conditions

Mid-Scale PV Projects (~60–199 MW) – Multiple States

Provided Engineer of Record services for projects from 60 MW to 199 MW, including:

  • Review and validation of medium-voltage routing, DC collection strategies, and overall site layouts
  • Completion of studies: cable ampacity, load flow, and loss analysis to ensure compliance and performance

Large PV Portfolios (up to 400 MWAC) – Various Regions

Supported large portfolio clients with multiple project reviews at 30% design stage, focusing on:

  • Optimization of MV routing schemes and DC collection approaches across multiple sites
  • Conducted cable ampacity, load flow, and loss studies for each array to maintain consistency and performance standards