Quote:
Originally Posted by SDMCF
...They have a Specific Primary Energy Demand of ≤ 120 kWh/m2. Yr which seems to me very generous. Even my house - built in the 1890s- easily meets that...
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As I understand this statement, The Specific Energy Demand (total yearly energy consumption) is <= 120 kWh/m2 per year (total).
So if your 1890 house is 75 m2 (total wild guess), then your total annual energy use would be 75 * 120 = 900 kWh for the year.
Or about 75 kWh per month (total), on average. Of course, there would be seasonal variations.
So, your 1890s house has the ability to perform this well?
I live in a far less climatically challenging area (Portland Oregon, USA) that you do (Finland), and I am struggling to get my 1890s house any where close to 75kWh per month. In fact, in my least-use months, I'm still using 6 times as much, even after all my work.
You must tell me your secrets!
-AC_Hacker