Electricity productionLocation = NaritaAngle on roof = 26.6 degreeProduction variable every month
Estimated production = 5 667 kWh/year= 1286 liter of fuel/year= 1782 kg CO2/year = 127 trees planted
20% own consumption – electricity price = 22.86 JPY/kWh80% sold on network – special feed-in-tariff = 42 JPY/kWh
From 2013 April 1st = 37.8 JPY/kWh
Gain = 216 321 JPY / year
Japanese Business CaseResidential house
Installation cost
24 panels x 212 W/panel = 5088 Wpeak total
Cost of panel only <100 JPY/Wpeak
Subsidy – State + city = 0.3 MJPYIf total cost: 450 JPY / Wpeak 2.3 MJPY 2.0 MJPY (after subsidy) Payback = 9.2 yearsIf total cost: 300 JPY/Wpeak 1.5 MJPY 1.2 MJPY (after subsidy) Payback = 5.5 years
(Mitsubishi Panels)
Installation cost (2011)
20 panels x 250 W/panel = 5000 Wpeak total
Cost of panel only <1 EUR/Wpeak
Total cost: 3.2 EUR / Wpeak 15.9 kEUR Payback < 3 yearsToday cost in Belgium: 2 EUR/Wpeak
System changed in Belgium = lot less advantageous in 2013
Electricity productionLocation = Fernelmont, South-EastAngle on roof = 35 degreeProduction variable every month
Actual production = 4805 kWh/yearElectricity = 20 EUR cent/kWh = 961 EUR/ yearGreen Certificate =7CV/MWh at 65 EUR/CV = 2186 EUR/year
Tax reduction (ended in 2011) – gain = 4000 or 5000 EUR
BelgianBusiness CaseResidential house
(Soluxtec Panels)
Apr-12
May-12
Jun-12Jul-1
2
Aug-12
Sep-12
Oct-12
Nov-12
Dec-12
Jan-13
Feb-13
Mar-13
0100200300400500600700800
Actual electricity production
kWh/
mon
th