EPC in the solar industry means engineering, procurement, and construction. It is a term that is widely used by companies that provide end-to-end solar energy services, including designing the system, giving procurement details about the system, and installing it.
Choosing a Right EPC is very important. A good EPC can save you more money by offering good solutions. Even a 2% increase in output as a result of your choosing a very good EPC (instead of a good enough EPC) increases your output per MW by about 30000 units a year, or close to one million units over a 25-year lifetime. That would be about 60-70 lacs additional money for you for the project lifetime, and this is just for 1 MW.
Based on the installation type, EPCs can be categorized into rooftop or ground-mounted EPCs. Rooftop solar EPCs can be operate in residential installations (1–25 KW), or commercial and industrial installations (25 kW to >100 kW). Ground-mounted solar EPCs can be operate in MW Power Plants projects.
EPC, which stands for Engineering, Procurement, Construction, refers to the company that does turnkey work for a solar power plant implementation – from design, to procurement of components to power plant construction. Some EPCs also take up maintenance work during the duration of the solar power plant. The following chain describes the various key components of value addition in a solar EPC operational chain: Design ==> Approvals ==> Material Supply ==> Excavation & Construction ==> Mounting of Structures ==> Mounting of PV Panels & Electrical Wiring ==> Installation of Inverters and Substations ==> Testing and Connecting to Grid.