OK, I'll have a go.
With a great design and proper use of controls and insulation, my 3 bed semi is heated by a 12 KW (12,000 Watts) gas boiler. How many Watts does the sun emit?
Bit of a hiatus, so I'll give the answer.
According to most sites I've read, at any moment, the sun emits about 3.86 x 10 to the power of 26 watts of energy, so that is 386,000,000,000,000,000,000,000,000 watts.