Physical vs. virtual batteries in industry: which one is best and when
The physical battery stores kWh in a computer and allows you to move energy to evening/night and cut power peaks (backup included). The virtual battery saves €: monetize your surplus on the bill without installing anything. The choice depends on your load curve, peaks and budget; in many cases, the hybrid strategy (physical + virtual) maximizes savings.
Aerothermal for Domestic Hot Water (DHW): The good, the bad and what they don’t tell you
Everything you need to know about hot water aerothermal: the best, the worst and how to integrate it with your solar installation. Practical and straightforward information.
How much does aerothermal energy use per month? Actual consumption and savings in 2025
How much does aerothermal energy in Girona spend? We analyze real consumption in cold areas such as Olot and temperate areas such as the Costa Brava, with reference tables, comparison with gas and diesel, and tricks to reduce the bill, even with solar panels.
Solar Thermal with Solar Panels? Real Opinions and Keys For Your Home
Is it worth installing aerothermal energy if you already have solar panels? We explain the best and the worst of this combination, how to get the most out of it and what to take into account to save more and live better with renewable energy.
Mandatory installation of electric vehicle charging stations by January 2023
Non-residential buildings must be equipped with charging points for electric vehicles.
How to care for an electric car battery
Learn about the measures that should be taken into account to extend the useful life of your electric vehicle.
What to do if the community of neighbors does not allow you to install a charging point?
More and more homeowners are considering installing a charging point in their community garage. However, sometimes doubts or even refusals arise from the neighbors’ community. Can they really prohibit the installation? What does the law say? In Fotovol we explain it to you clearly so you know how to act and do not waste time or money. Can the community
What is the range of an electric car?
Battery capacity, driving style and environmental conditions affect the distance an electric car can travel on a single charge.
The Esteve-Fernández family opted for solar self-consumption in their high-consumption home. Today, their electricity bill has dropped by 90 %.
The Puig-Mas family was looking for an efficient, sustainable air-conditioning solution that would offer them comfort in all seasons. Today, thanks to aerothermal energy combined with underfloor heating, they have reduced their energy costs by 65% and enjoy a perfect temperature all year round.
The Martí-Clavé couple decided to take advantage of the complete renovation of their apartment to replace the old electric heating system with an efficient and sustainable solution.
The Riera family was looking for a comprehensive solution to eliminate their dependence on gas and electricity from the grid. Today, thanks to a hybrid aerothermal and photovoltaic system, they enjoy bill-free heating, cooling and hot water for most of the year.
What is the maintenance of solar panels?
Residential PV systems have several advantages. Even so, good maintenance is required to avoid sudden inconveniences.
Aerothermal maintenance: keys to an efficient and long-lasting system
The maintenance of the fan heater is simple but essential: filter cleaning, annual professional inspection and control of tanks and circuits. This ensures maximum efficiency, more savings and a useful life of up to 20 years.
Recycling of solar panels in Girona
In Girona, solar panels must be recycled at municipal clean points or through authorized waste management companies. If you replace your installation, the installation company is obliged by law to remove and recycle the old panels. About 90% of the materials (glass, aluminum, silicon and metals) can be recovered and reused.
¿Cuántas veces hay que limpiar las placas solares?
Cleaning solar panels with the right frequency can improve their efficiency by up to 25%. We answer all your questions with practical tips, recommended products and real-life situations depending on the environment.
Energy Communities Regulations
Regulations of energy communities in Spain and Europe: what laws regulate them, what figures exist (RECs and PPAs) and how they benefit citizens and municipalities.
Plan for the promotion of electric vehicles in Catalonia 2025-2030: keys and opportunities
The new plan of Catalonia mobilizes more than 1,400 million € to promote the electric car. In Fotovol we help you to install recharging points with public aid.
Regulations for installing an electric car charger in a community garage
Learn about the current regulations for charging points in communal garages and discover how Fotovol facilitates every step: from the permit to the installation.
Taxation of leasing land for solar farms
Renting a plot of land for a solar farm in Girona is taxed as real estate capital if you only lease the land, while if you decide to exploit the plant yourself, the income is considered economic activity. In both cases, you must charge VAT on the invoices and be registered in the census of entrepreneurs, although you will normally
