Today we share with you a very special case: the Esteve-Fernández family, who decided to go for solar self-consumption in their home in Sant Antoni de Calonge. What started as a conservative estimate of savings, has ended up being a resounding success: from paying about 3,600 € a year in electricity … they have gone to pay only 300 €!
Initial situation: high consumption in an all-electric home
Two people live in this house, but their consumption was well above average. We are talking about a house of about 230 m² built, with a swimming pool (whose motor runs 8 hours a day), several air conditioners and appliances that run exclusively on electricity.
As it was a house without any other type of complementary energy, such as gas or diesel, all the energy consumption fell on the electricity grid, which meant an annual expenditure of around €3,600.
The study: a conservative and realistic forecast
As we always do, we conducted a personalized study to estimate the savings that could be achieved with a solar installation adapted to their needs. Our initial forecast was conservative:
an estimated saving of €1,700 per year, thanks to a 6.56 kWp battery-free self-consumption system .
Technical data of the study:
- Previous consumption: 9,060 kWh/year
- Technology: SolarEdge system with optimizers, ideal for areas with partial shadows (e.g. antennas, chimneys or nearby trees)
- Subsidy applied: 30% reduction of IBI for 3 years.
- Installation completed in November 2023
- Duration of work: only 3 days
- Total cost: 9.994,69 €.
- Estimated amortization: 3 years
Actual results: more than twice as high as expected
Today, a year and a half after installation, we can say that the experience has far exceeded all expectations:
From paying 3,600 euros per year they have gone to paying only 300 euros
Actual savings have been 3,300 euros/year, almost double the expected amount
Actual payback of the system will be even faster than estimated
And all this without the need for batteries or major complications.
Our studies are always conservative, because every home is different. But if you adopt routines such as putting washing machines on during the sunniest hours or programming the operation of certain household appliances, it is very easy to exceed the initial forecasts.
Additional benefits
In addition to the dramatic savings on electricity bills, this installation has also brought other advantages:
- 30 % IBI rebate for 3 years (about 900 € of extra savings)
- Improved energy efficiency through the use of optimizers
- More energy autonomy and peace of mind in the face of rising electricity prices
- Positive environmental impact thanks to a significant reduction in emissions
Real testimony
“We used to pay more than €300 a month. Now, we pay that in a whole year.”
– Francisca Fernandez, homeowner
How much could you save?
This is just a real example of the many success stories we manage on a daily basis. Every home is different, but with a good personalized study, solar self-consumption becomes a profitable, sustainable and very satisfactory investment.
If you want to find out how much you could save, contact us and we will prepare your own free, no-obligation study.
Summary of the case in figures
| Data | Result |
|---|---|
| Type of installation | Self-consumption without batteries (6.56 kWp) |
| Previous consumption | 9,060 kWh/year |
| Estimated savings | 1,700 €/year |
| Actual savings | 3,300 €/year |
| Investment | 9,994.69 € (year 2023) |
| Estimated amortization time | 3 years |
| Subsidy applied | 30 % IBI reduction (900 €) |
