Solar panels, batteries and EV chargers in south Tenerife, designed and installed by a qualified electrician.
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Why the south of Tenerife is the best place in Europe for solar
The sunlight, the electricity prices and the legal framework make self-consumption worth it here. The honest arithmetic, including the cases where we tell people not to bother.
1. The sunlight is measurable
Solar output is measured in kWh generated per year for each kWp of panels installed.
| Location | Typical yield, kWh per kWp per year |
|---|---|
| South of England | around 900 |
| Madrid | around 1,400 |
| Tenerife Sur | around 1,700 to 1,800 |
The south of the island gets around 2,800 hours of sun a year, and output stays useful in winter. The local catch is heat: modules lose output as they get hotter, so we mount with an air gap and keep inverters out of the sun.
2. What changes on your bill
Your bill has a fixed part tied to your contracted power and a variable part for the energy you use. Solar reduces the variable part: every kWh the panels produce while you are using power is a kWh you do not buy.
Where solar performs best
- Air conditioning, which runs hardest when the sun is strongest
- Pool pumps, a daytime load that can move almost entirely onto solar
- Heat pumps and pool heating
- Homes and holiday lets occupied during the day
Where we tell you to wait
- A very small bill: there is not enough to save
- A heavily shaded roof that cannot be reconfigured
- A property you are selling within a year
- A community roof without the community’s agreement
3. Surplus energy and the rule that catches people out
Under RD 244/2019, energy you generate but do not use is exported and credited on your bill. The credit cannot exceed the energy part of that month’s bill: you can take the energy charge to zero, not below. This rule sets the right size of the system. Oversize it and you give power away; size it to your consumption and you capture the value.
4. What a legal installation involves
| Step | What it is |
|---|---|
| CIE (boletín eléctrico) | The low-voltage installation certificate filed with the Gobierno de Canarias |
| Self-consumption registration | Registration of the installation in the self-consumption register |
| Compensation contract | Signed with your retailer so surplus is credited |
Without these the system is not legal, is usually not covered by insurance, is not eligible for grants and gets no surplus compensation.
Talk to the electrician before you buy
Send a recent bill and a photo of the roof on WhatsApp. You get an honest first answer, including when it is not worth doing.
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