View Full Version : Passive-Plusenergyhouse
9th January 2007, 10:44 AM
hi the new generation will be Passive-Plusenergy houses.
there is a project build in south Germany and there is also one project in Ireland in planing phase. the cost for one m² Passivehomes is around 1200.- Euro. (without plot )
cost for PV Solarpowerstation for 3,800 kWp/anno is around 26000.-Euro
more information about the project comeing soon.
10th January 2007, 09:58 PM
As far as I followed the situation there is no rembursement for PV generated electricity from the gridowner to the provider. However there might be a clause in the legislations that PV power falls under the renewable energy act. Which generates for the power generator a poor 6 cents per kwh....
Have you any news about the PV rembursement in Ireland? I'm interested!
The actual price for a PV station generating 1kwp is around € 4,000.
With 1,200-1,700 hours of sunshine in Ireland last year (depending on the exact place) and a 15% efficiency for good quality a PV panel of one squaremeter would generate 225 kwh/a at full sunshine, at peak (plus some more at duller weather when the sun is hidden behind the clouds).
Generating 3,600 kW(h?)p/a would demand a PV panel surface of 16m2.
Are my calculations correct or am I missing something?
3,600kWh/p x €0.06 = €216.-/a
At a cost of € 26,000.- for the system and a rembursement of €216.-/a the system would need 120 years for an ammortisation. Did I do my calculations well (smiley)? Please correct me!
11th January 2007, 10:22 PM
if we have done the first example house in Ireland, we have to work on the government for more grant, like the German and Austrian government do it to there national.
in Germany they get 48cent per kWh.
but there are small windmill on the marked and a use of 20m² PV solar panels makes a optimum price mix. first you have to think for a passive house concept. a m² cost around 1000€
have a look on this website. www.Wolf-Thermomodule.de English version coming soon. or www.plusenergyhaus.de
a PV Solar panel size 2152x1252mm cost around 2,249.-€/PMPP 320wp +/-5%
inverter UPV 200 to 500 V 20A 2000.-Euro plus accessories kit !!!!!!!!
it can be also possible do to some further building in Ireland with optimum price.
you have do to a other calculation.
26000€:20m²:25Years:12months=one m2 cost you 4,3 € per months or
26000€:25Years:12 months=86,66€ /20m² /months it every day one pinte beer lees to safe the earth
and than add the growing value of your building. any question???????
12th January 2007, 01:05 PM
The passive plus house you mentioned for 1200 per m2, does that apply to the one built in Ireland aswell or just the German ones.
1200euro m2 = 110euroft2 (10.89feet per metre). If you take the added cost of the electric gererating system out of the equation then it may be aslow as 90-100 which would see passives houses coming into price a competitive zone.
12th January 2007, 02:03 PM
yes, it is possible to supply the irish building marked with passivehouses for 1000€ per m². inculded transport from germany.
12th January 2007, 08:01 PM
Interests -what one pays to the bank when borrowing money-are not covered in your calculation. No PV producer gives a guarantee of 25 years on 100% output. The most you'll get on the upper market range is a guarantee of 80% on the PC panel output (not the converter!) for 20 years. But these are premium price classes at around €6,000/kWp....
An energy input of €26,0000 (the grey energy stucked in the proposed PV system) will heat my non-passive house with LPG via condensingboiler for more then 50 (fifty!) years.
The latest edition of Photon-a solar energy magazine made for the industry- warns against any price over €3.900-€4.000/kWp.......
Your link "plusenegyhaus.de" doesn't work.
Wolf -the other link-doesn't produce houses as far as I understood, yust panels that have to assembled. We have a timberframe industry running here, with a market share of over 25%.
A "passive house" has an energy demand for heating of not more then 10kWh per year. How does your proposed house feature, is it certified? By who?
I'm asking because I never heard of a certified passive house using a €26.000 grey energy input to produce it's energy demand. The first ones in the 80s might have had such high costs because these were trials, first timers with nearly every item handmade and monitored for years.....
And why do you wan't to produce PV energy anyhow? As an income? To offset/cover which costs??
Don't mix-up a "passive house" with a "plus energy house".
Where in the world has ever been build a certified passive house for €1,000.-?
I'm sure you mean the material price before VAT, but not the construction costs ?!
Let us know-we're all eager to see it done. The "Energiehaus100" might get near this sum (they recieved the German Solar award 2006 for this price hit), but only for the material costs without VAT and construction. Or any transport.
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