Guides
Short answers written so a person, a search engine, or an assistant can quote them without hype.
Q
Simple payback is net install cost divided by estimated annual bill savings. It is a planning figure, not a guaranteed return.
Central CFA for homes is indicative until MNRE and your DISCOM sanction it. Commercial and industrial sites should not assume the same slab.
On-grid offsets daytime units through net metering. Hybrid adds battery backup when outages matter.
AMC is scheduled cleaning, inspection, and performance review so the array keeps the yield the design assumed.
Plan on about 10 square metres of unshaded roof per kilowatt, then confirm with a site survey.
A survey records roof geometry, structure, shading, electrical point of connection, and load so the design is specific to the site.
