EPC Contractor
A company that handles the full build-out of a solar project end to end, covering engineering design, equipment procurement, and on-site construction under a single contract with the project owner.
EPC contractors bundle engineering, procurement, and construction into one contractual scope, taking responsibility for delivering a working solar plant at an agreed price and schedule. The owner gets a single throat to choke; the EPC absorbs coordination risk across design, supply chain, and on-site labor.
EPCs dominate utility-scale solar and are common in the commercial and industrial segment. Many vertically integrated installers effectively operate as EPCs for mid-sized projects even when they don't use the label.
Why it matters for solar installers
If you operate at EPC scale, your margin lives in accurate design and tight procurement. A generous design buffer translates directly into lost margin; a sloppy BOM means late orders or wrong SKUs on site. solarVis gives EPC teams a shared design canvas, a maintained material database, and project-level visibility so the estimating team, the procurement team, and the site manager all work from the same source of truth.
Common questions
- What's the difference between an EPC and an installer?
- Scale and scope. A residential installer typically handles sales, design, and installation for small rooftop systems. An EPC runs multi-megawatt utility or commercial projects, manages subcontractors, and takes on design liability under one wrapped contract.
- Does an EPC own the plant after it's built?
- Usually not. EPCs build the plant and hand it over to the project owner or a separate O&M provider. Some EPCs also operate an O&M arm, but the EPC contract itself ends at handover.
- What do EPCs need from software tools?
- Accurate pre-construction design, up-to-date bills of materials, document management across permitting and procurement, and portfolio-level visibility into projects in flight.
