01 · Demand
Read the load before sizing the array.
Review at least the available billing history, sanctioned load, daytime consumption, future cooling, hot water, EV charging and battery intent. Separate energy-saving measures from generation so the system is not sized around avoidable demand.
- Monthly and seasonal consumption
- Daytime versus evening demand
- Future electrical loads
- Grid-connected, backup or hybrid objective
- Export, metering and DISCOM pathway
02 · Roof
Protect structure and water control.
Survey usable area, orientation, shade, parapets, tanks, access paths, drains, waterproofing and future roof uses. A responsible structural professional should assess the existing or proposed supporting structure and fixing strategy. Keep inspection and cleaning access.
- Shade through the year
- Structure and wind actions
- Waterproofing and penetrations
- Fire and maintenance access
- Drainage and roof equipment conflicts
03 · Electrical
Coordinate equipment, protection and routes.
Confirm inverter and isolator location, DC and AC cable routes, earthing, surge and lightning protection approach, meter interface, ventilation, labels and emergency isolation. Product and installation requirements must follow the current scheme, standards, DISCOM and manufacturer information.
04 · Approval and handover
Use the current official path.
Residential consumers seeking central financial assistance should use the current PM Surya Ghar and MNRE pathway. BESCOM publishes rooftop-solar documents and net-metering information for its jurisdiction. Confirm eligibility and approval before relying on subsidy or export assumptions.
- Approved vendor and product checks where required
- DISCOM feasibility and metering
- Commissioning and test record
- Array, cable and shutdown diagram
- Warranties and monitoring access
- Cleaning, inspection and safe-access plan
Source record
Official sources reviewed
Links are provided for verification. Requirements and portals can change after the review date.