How solar actually turns sunlight into your power bill.
Scroll through a working model of a rooftop system — from sunlight hitting a cell, to what a system on your own roof could generate and save. Every number below updates live as you adjust it.
One cell, one reaction, repeated a few thousand times.
A solar panel is a grid of silicon cells. Each one does the same simple thing: sunlight knocks electrons loose, and the cell's structure forces them to flow in one direction — that flow is electric current.
Cells respond to light, not heat — so they keep producing on an overcast day, just at lower output, because less light is reaching the surface. Toggle "Cloudy" to see the drop.
A single cell produces under half a watt. A standard panel wires roughly 60–72 of them together to produce 350–550W, and a full system wires many panels together to reach the capacity your roof needs.
That direct current (DC) then travels to an inverter, which is where the next stage of the system picks up.
Five components between your roof and your meter.
Tap each part of the system to see what it does and why it's there.
Drag the clock to see output rise and fall.
Output follows the sun, not a flat rate — peaking around solar noon and tapering at the edges of the day.
Estimate a system from your current bill.
A rough sizing model using Faridabad's average sun hours — useful for a ballpark figure. A site assessment gives you the real number.
What that system offsets each year.
Figures scale with the system size from the calculator above — based on India's average grid emissions factor.
That estimate is a starting point. Your roof gets a real one.
A site assessment from Sridevine India Energy gives you an exact system size, layout, and quote — no obligation.
Get a Free Site Assessment