Rooftop solar, made simple

Rooftop Solar & the Grid

See what happens to a real neighbourhood's power network as you add more rooftop solar. Based on a real test network.

How much solar is connected?
70%≈ 2.60 MW
0%50%100%150%
Plenty of solar, sized to local daytime demand.

What adding solar does for the neighbourhood

Rooftop solar can cut wasted energy in the cables and lift weak voltages — up to a point.

You're at the sweet spot. Wasted energy is at its lowest (88 kW, down 56%) and every connection point is in the healthy zone.
Energy wasted in the wires
88kW
-114.3 kW vs no solar
Lowest voltage health
Healthy
95.9%
Highest voltage health
Healthy
100.2%
Power from the main grid
1.20MW
-2.7 MW vs no solar

Voltage at every connection point

Solar lifts the weak far-end voltages back into the healthy green zone.

Wasted energy vs amount of solar

A little solar cuts waste a lot. Too much, and waste climbs again as power flows backwards.

Voltage range vs amount of solar

More solar fixes low voltage — but push it too far and voltage gets too high.