Solar Design Services in South Carolina

Proposal design for the sales stage, permit plan sets for South Carolina authorities, 3D pre-design and shade studies, detailed engineering for rooftop and ground mount, civil and structural engineering with STAAD Pro verification, and yield and technical reports. Most South Carolina installers start with one service and expand once turnaround and quality are proven.

Yes, and it is the substance of the work rather than a claim. South Carolina adopts statewide building codes with local enforcement. Two things distinguish the design environment: hurricane wind design along a long coastline, and genuinely elevated seismic design around Charleston, which sits in one of the more seismically active zones on the eastern seaboard.

Dominion Energy South Carolina, Duke Energy Carolinas and Progress, Santee Cooper, Electric co-operatives. Each expects its own diagram format and documentation, and export rules differ between them, which changes both the sizing case and what the drawings must show.

South Carolina has grown a solid distributed market alongside utility-scale development, with the coastal corridor and the upstate as the main residential centres. The engineering distinctiveness sits in Charleston, where hurricane wind design, elevated seismic provisions and extensive historic district review combine in a way that is unusual anywhere in the country. The state-owned Santee Cooper structure and the co-operatives it supplies add interconnection variety that the investor-owned model does not.

Yes. Commercial and industrial work brings structural calculations, equipment coordination and interconnection complexity. Our largest documented project is an 11 MW DC rooftop installation on tin shed structures, which required structural verification across dozens of shed roofs alongside the electrical design.

A second engineer reviews every set against a jurisdiction specific checklist before it leaves us. The reviewer is not the person who drew it, because the fastest way to miss a setback error is to check your own work. Structural output is verified in STAAD Pro rather than assumed from a racking table.

You do. Work is covered by NDA and all intellectual property in the deliverables transfers to you. We do not reuse your drawings, your customer data or your templates for anyone else.

Yes. No retainer, no minimum volume, no onboarding fee. Most clients send one project, check the output, then scale.

Wind: the dominant consideration along the coast, with hurricane design wind speeds from Myrtle Beach through Charleston to Hilton Head. Moderate in the upstate. Snow: negligible statewide. Seismic: genuinely elevated around Charleston, which sits in one of the more seismically active zones on the eastern seaboard. Low in the upstate. Also governing: salt corrosion on coastal sites, and coastal zone construction requirements that add documentation beyond the standard permit. These decide the racking selection and attachment schedule, so we verify them per site rather than applying a regional default.

South Carolina building codes adopted statewide with local enforcement. Coastal zone construction requirements along the Atlantic shoreline. Charleston area seismic provisions reflecting historic regional seismicity. Solar choice tariff structure replacing the earlier net metering arrangement. We work from these rather than a national template, because each can produce a review comment on an otherwise sound design.

City of Charleston Department of Planning, Preservation and Sustainability (Charleston): combines hurricane wind design, elevated seismic provisions and extensive historic district review, which is an unusually demanding combination. Columbia Building Development Services (Columbia): midlands conditions without coastal wind or Charleston seismic, so a comparatively light structural case. Greenville County Building Safety (Greenville County): upstate location in Duke territory, with modest loading and high suburban residential volume. Horry County Code Enforcement (Horry County, Myrtle Beach area): coastal wind design and a substantial share of properties in flood zones. Beaufort County (Hilton Head and the southern coast): coastal exposure plus design review overlays in resort communities.

Charleston sits in one of the more seismically active zones on the eastern seaboard, with a documented history of significant regional seismicity. The building code reflects that, so attachment and structural detailing carry seismic provisions alongside hurricane wind design. Very few US cities require both at this level.

It is a state-owned electric utility supplying parts of the South Carolina coast and providing wholesale power to many electric co-operatives. That structure is unusual among US utilities, and it means the interconnection process and programme terms differ from the investor-owned model. Confirming the serving utility is the first step.