I have filled in the GT1 form incorrectly and it was sent back to me. On the section "SPEV=" I entered "40000kWh per year" but they need "what the maximum hourly gas load will be (with all the appliances working at the same time)".
I have historical data on my gas consumption over the years and it seems during the cold winter of 2015, I spent 5,400kWh in 30 days. Assuming each day the boiler was on for 16 hours and during that time it was on for about 75% of the time, therefore 16 * 0.75 * 30 = 360 hours on, which works out as 15kWh per hour.
Could anyone please tell me if this is a good approximation?
I have historical data on my gas consumption over the years and it seems during the cold winter of 2015, I spent 5,400kWh in 30 days. Assuming each day the boiler was on for 16 hours and during that time it was on for about 75% of the time, therefore 16 * 0.75 * 30 = 360 hours on, which works out as 15kWh per hour.
Could anyone please tell me if this is a good approximation?