[groar]

From Kyoto protocol, the CO2 emissions must be divided by 4 in 2020 compared to 1990. The houses were consuming 43% of total energy with 400 kWh/m²/year, grey energy included. In 2020 houses should consume 100 kWh/m²/year, included 50 for heating, hot water and AC.

(Edit) The accounted energy is the primary one, not the consumed one. For electricity, the French coefficient is 2.58 For other energies it's 1

Here are the data for my house :

• Surface : 125 m²
• Total last year electricity bill : 11265 kWh, ie 90 kWh/m²/year.
  (Edit) The corresponding primary energy is 232 kWh/m²/year.
• evaluation for heating is 3 MWh/year and for hot water is 1.5 MWh/year, no AC, ie 36 kWh/m²/year.
  (Edit) The corresponding primary energy is 93 kWh/m²/year.
• Butane for cooking : one 13kg bottle/year. In a CO2 point of view this corresponds to 50.31 kg CO2 (3.87 kg CO2 / kg of butane) and to 555 kWh (1 French kWh = 0.09 kg CO2 for basic use that isn't constant) ie 5 kWh/m²/year.
• No idea about the grey energy used to build my house. From the figures found, it's less than 20% of the total energy consumed yearly by a house, ie (90+5)*0.20 = 19 kWh/m²/year.
• Now removing the green energy generated by the house : the solar panels should generate around 3125 kWh/year, ie 25 kWh/m²/year.

The final ratio for my house is 90+5+19-25 = 89 kWh/m²/year included 36 kWh/m²/year for heating. These are -11% and -28% of ratio required for the 2020 Kyoto goal
(Edit) The final ratio for primary energy is 232+5+19-25 = 231 kWh/m²/year included 93 kWh/m²/year for heating. These are +131% and +86% of ratio required for the 2020 Kyoto goal

Denis.