Heating and Cooling in the Algarve
PV Facts and Figures
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- Parent Category: Articles about Heating and Cooling in the Algarve Articles about Heating and Cooling in the Algarve
- Category: Case Studies Algarve Case Studies Algarve
Many homeowners are interested in photovoltaic (PV) solar systems to supply their own domestic electricity. But how many PV panels are needed to achieve what? And how much should you spend on a system for a sensible return-on-investment of 7 years?
|
Panels (250W) |
kW capacity |
Est. monthly return € |
Price of system for 7-year ROI * |
|
|
1 |
0.25 kW |
€6.50 |
€575 |
|
|
2 |
0.5 kw |
€13.25 |
1.150,00 € |
|
|
4 |
1kw |
€26.50 |
2.300,00 € |
Beware any exaggerations |
|
8 |
2kw |
54,00 € |
4.600,00 € |
beyond these figures |
|
12 |
3kw |
82,00 € |
6.830,00 € |
- false claims abound! |
|
18 |
4,5kw |
120,00 € |
€10340 |
|
|
28 |
7kw |
188,00 € |
€16310 |
* Based on current EDP rate of 19 cents per kW (incl. IVA)
