View Single Post
Old 07-06-2008, 10:50 AM   #5 (permalink)
groar
X-Frenchy: very
 
groar's Avatar
 
Join Date: Jun 2008
Location: Toulouse, France
Posts: 595

scenic - '01 renault scenic
90 day: 43.09 mpg (US)

megane - '97 renault megane classic
Diesel
90 day: 72.53 mpg (US)

dennisius - '06 Toyota Prius
Team Toyota
90 day: 69.27 mpg (US)
Thanks: 9
Thanked 34 Times in 23 Posts
Quote:
Originally Posted by MetroMPG View Post
A 50% credit on a PV system is better than a kick in the pants, eh?

Have you run the numbers yet on payback time?
For France :
. credit tax of 50% of material, limited to 4000€ by adult and 200€ by child.
. 3kW installed cost is between 20 and 25 000€.
. I will generate about 3.15MWh/y, so I will earn 1800€/y.
. You have to pay 650€ to be connected to the grid then 60€/y + 40€/y taxes.

Our profitability: (22500+650-8200) / (1800-60-40) = 14950 / 1700 < 9 years
As the converter will have to be changed every 10 years and it costs about 1500€ then profitability is 10 years.

But in Europe the data are different in all countries. Each country must have a certain percentage of renewable electricity before 2012.

In France the selling price (0.57€/kWh) is currently the most important (iirc) but constraints are the worst. You can have credit tax under 3kWc and the house must be older than 2 years. To have max selling price the installation must be integrated into the roof (else it's 0.34€/kWh).
Current law is valid until end 2009 so things will change in France in 2010.

One year ago I calculated for a little PV system with batteries to run my 3 24/7 computers. Return Over Investment was 50 years, but without counting batteries and converter changes... so there is no ROI.

Without credit tax nor high selling price, PV doesn't pay for themselves, except if you leave very far from the nearest electric point.

Denis.
__________________
Save money & CO2 at home : http://ecorenovator.org/
Created and managed by the creators of http://ecomodder.com/
---
Earth and health are priceless, so are kilotank and AT-PZEV
Best Mιgane tank: 1268.9mi @ 77.847 MPG(US)
2008/06-2011/10 saving:
  • 5725.5 kg CO2 (5342.6+382.9)
  • Diesel / Money: 42.17% = 2446.25€ = 3357.26$


---
megane : thread - kill switch.
  Reply With Quote