Solar photovoltaic energy
Solar photovoltaic energy converts solar radiation into electricity. Depending on its purpose, we distinguish several types:
Self-consumption
The energy generated is consumed within the installation itself. Self-consumption is regulated by Royal Decree 244/2019, which sets out its administrative, technical and economic conditions, including surplus compensation. Two types are distinguished:
| Type | What it involves |
|---|---|
| Without surplus | An anti-injection system prevents feeding energy into the grid: all production is consumed on site. |
| With surplus | The installation can feed the excess into the grid, with or without compensation for the surplus. |
Generation plants
Installations whose purpose is to produce electricity to feed it into the grid. Above a certain power, they require a technical project signed by a competent technician in accordance with the REBT; below that, a technical report is sufficient.
Off-grid installations
Without connection to the electricity grid, common on rural estates or remote locations. They combine photovoltaic generation with battery storage to guarantee supply, in accordance with the REBT.
Which solution suits you?
It depends on your consumption, the space available and whether you want to self-consume, sell or operate off-grid.
Geothermal energy
Geothermal energy harnesses the thermal energy of the subsoil by means of a heat pump coupled to a buried heat exchanger (vertical or horizontal collection). By operating against the stable temperature of the ground, it achieves high coefficients of performance (COP), typically a COP of around 4–5, and covers a large part of the energy demand. The installation is designed in accordance with the RITE.
In the Balearic Islands, where drilling is viable, the mild and stable temperature of the Mediterranean subsoil allows the heat pump to maintain a high and constant performance throughout the year, reducing the electricity consumption of air conditioning.
Generation with fossil fuels
When we need back-up power, emergency power (Back-UP) or supply in the absence of the grid, generator sets are installed, either diesel or gas. Their installation is governed by the REBT and the applicable emissions and noise regulations. We design the installation and the fuel storage and carry out the follow-up until the installation is commissioned.
What do we do?
Frequently asked questions
What types of photovoltaic self-consumption exist?
There are two types: without surplus (an anti-injection system prevents feeding into the grid) and with surplus, in which the installation can feed the excess into the grid, with or without compensation.
What is surplus compensation?
It is the mechanism by which the surplus energy fed into the grid is discounted on the electricity bill, for installations covered by this type.