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FEMPA

How do grid-connected solar panel systems work?

Solar panels generate electricity which is immediately used by your home. When your home needs more electricity than the solar panels are generating, additional electricity is taken from the grid. When the solar panels generate more electricity than your home needs, the surplus electricity is fed back into the grid.

Lower electricity bills

Even a relatively small system will lower your electricity bills significantely.

Reimbursements for surplus electricity

Your electricity supplier will reimburse surplus electricity that is fed back into the grid.

Store surplus electricity

Optionally, surplus electricity can be stored inside batteries for later use.

Premium materials

We only use premium quality hybrid inverters, optimisers and micro-inverters.

Including paperwork

All systems are registered with the Generalitat Valenciana and the grid injection is legalised via the grid-operator.

Long warranties

Inverters, optimisers and solar panels with warranties up to 25 years.

Short Payback Period

An average system without battery-storage can pay for itself in less than 5 years.

Experienced installers

All our installers and electricians have at least 500 systems of experience on any home or roof type.

FEMPA certified

Our electricians are FEMPA certified and all have the right qualifications in Spain.

Since 1994

We have almost 30 years of experience with solar panel systems in Spain.

Languages

In our office we speak English, Dutch, German, Spanish and French. Our installers and electricians speak Dutch, English, German and Spanish.

All surface types

We install on all surface types like inclined roofs, flat roofs, in gardens and on walls.

EV-Chargers

We install electric vehicle chargers of all types.

Apps

View every little little detail about the system on your smartphone, tablet, laptop or pc.

Battery-storage

Our systems can always be expanded with battery-storage immediately or at a later stage.

Inverters solar power systems
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Inverters

Inverters invert DC electricity, which is generated by the solar panels into AC electricity, the type of electricity we use in our homes. Depending on the situation, we use string-inverters, string-inverters with optimisers or micro-inverters. In a string-inverter system, there will be one main inverter inside the house. In a micro-inverter system, every panel is outfitted with it’s own micro-inverter. In most situations we use string-inverters, but when you have multiple small roofs with different orientations and/or inclination angles, we advise micro-inverters. We mainly work with hybrid, battery extendable string-inverters by Huawei and SolarEdge or micro-inverters by Enphase.

Optimisers

Optimisers are attached to the back of solar panels and constantly monitor the panel voltage and current and work to mitigate any mistmatch effects so that each module can operate at its maximum power level. The system will also be able to deal better with possible shade on the panels, as well as with sand and dust. When optimisers are used, the system will be able to tell you what each individual panel is generating through the software or app of the system. When there is no possibility of shade on the roof and there are no more than two different orientations/angles of inclination, optimisers are not necessary, and would only increase the price without increasing the production of the system. On systems with Huawei string-inverter, optimisers are optional. On systems with SolarEdge string-inverters, every panel is outfitted with an optimiser by default.

Battery-storage

Optionally, surplus electricity can be stored inside batteries. Your home will use the stored electricity at times that the house needs more electricity than the panels are generating. We often advise to install battery storage after the system has been running for a couple of months, when we have more information about your consumption through the data of the inverter. This way we can better advise you wether battery-storage is a good investment for you and if so, how much capacity is needed.

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EV-chargers

We install separate EV-chargers by Wallbox and inverters with integrated EV-chargers by SolarEdge. Inverters with integrated EV-charger offer your the ability to charge your vehicle up to 2,5 times faster than with a standard charger, though a boost mode that uses electricity from the grid and from the solar panels simultaneously.

Solar panels

The solar panels we use for our installations are picked on almost 30 years of experience in Spain. We use mono-crystalline HC PERC or shingled PV modules with an efficiency of 21% or higher, 25 years of linear power warranty and only by premium tier 1 brands, like Jinko Solar, Hyundai and Sunpower.

Mounting

When the panels are installed on a tiled roof, we use a self-designed system with metal profiles, threaded ends and a special waterproof adhesive by Würth. When the panels are installed on a flat surface, we use prefab concrete foundations, aluminium structures or aluminium structures with wind skirts. Panels call also be installed on vertical walls.

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Complete control, wherever you are

See every little detail about the system on your smartphone, tablet, laptop or pc.

Production

See the (live) production of the system.

Grid

See how much electricity you are taking from and feeding back into the grid.

Revenue

See what you are saving and how fast you are earning back your investment.

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Consumption

See the (live) consumption of your house.

Compare

The apps give you handy graphs to compare production and consumption.

And much more!

Details about battery-storage, production per individual panel and much more.

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Administrative paperwork and certificates

After the system is installed, we will register through system and legalise the grid-injection through the ministry of industry (Generalitat Valenciana) and the grid-caretaker (I-DE). This important and obligated administrative work is done so that we will receive a certificate (certificado en baja tension para una instalacion generadora), that is used to receive reimbursements for surplus electricity.

Reimbursements for surplus electricity

Per injected kWh, your supplier will pay you 5 to 7 cents + IVA (depending on the electricity supplier). This money will be taken of the money you still have to pay your supplier, for electricity used at night for example (excluding fixed costs and the number of kWh’s may not be negative). Your electricity supplier can see how much electricity you are feeding into the grid through the digital meter (often beside the entrance of your plot). The surplus electricity will be mentioned on your monthly electricity bill.

Frequently asked questions

About grid-connected solar panel systems in Spain.

Can I add more panels to the system later?

In most cases , the system can be expanded with 1 to 4 panels. If you are thinking of adding more panels at a later stage, we advise a stronger inverter. Especially when are thinking about adding pool heating, buying an electric vehicle, or changing a gas system for a heat pump.

How are the panels installed on tile roofs?

With a diamond drill we drill a hole into the (upper) roof tile and through part of the bardo (red stones used in Spain under the roof tiles). In this hole we place a threaded end, which is completely sealed around with a special waterproof adhesive, so there is no chance of leakages. On the threaded end that is sticking out of the tile, rails are mounted. On these rails the panels are mounted. The materials we use are all by Würth and have been used by us on more than 500 homes.

What happens if roof tiles break during the installation?

All the roofs tiles that break during installation, are replaced by us, no matter how many.

How are the panels installed on flat surfaces?

This depends on the situation, available space, possible wind forces and how the system will look from an esthetic standpoint. For flat surfaces we use prefab concrete foundations, aluminum structures or aluminum foundations with wind skits. All systems are available with an inclination of 5 to 30 degrees.

Can the panels get too hot?

The panels can get hot in summer, but not too hot. The loses due to heat are relatively small and are calculated in the energy report that you receive with your quotation.

What happens when the power grid fails?

When a power grid failure occurs, a normal PV system stops working. A grid-connected system can only supply your house with electricity during power cuts when a UPS systems, backup box, or inverter with UPS function in combination with battery storage is used.

Do you install systems that use the battery of an electric vehicle?

No, at this moment we do not.

Who installs the system?

Our own teams of FEMPA certified installers and electricians with hundreds of systems of experience on all home and roof types. From modern newly built villa’s to hundreds of year old finca’s.

Do you install off-grid systems?

Yes, we also install off-grid systems. With off-grid systems you are not connected to the power grid. All the electricity that your home needs is generated by the solar panels and stored inside batteries. These systems are used for being independent from electricity suppliers and for homes where realizing a connection to the power grid is impossible or too expensive. In order to make sure you have enough electricity during storms that last for multiple days, a backup generator is used.

Are grid-connected PV systems legal in Spain?

Yes, when the system is registered through the Generalitat Valenciana (GVA) and when the grid-injection is legalized through the grid-operator. Where you previously had to pay a tax over the returned surplus electricity (untill April 2019 – Impuesto del sol) you will now receive a compensation for the returned energy (real decree 244/2019).

Where do you install?

We are based in Calpe and install on the Costa Blanca, Spain (Marina Alta – Marina Baja). We install in Calpe, Benissa, Moraira, Benitatchell, Jalon, Javea, Denia, Ondara, Altea, Alfaz, Albir, Benidorm, La Nucia and all towns and villages in-between.

Do the systems need maintenance?

No, maintenance is not needed.

Do the panels need to be cleaned?

Cleaning the panels will increase the production. We advise to clean the panels after a sand/dust rain and when the weather report says there will not be more rain for multiple weeks after the sand/dust rain.

Do you offer panel cleaning services?

Yes. We can offer you a professional and affordable panel cleaning service using the right gear and de-ionised water (zero ppm TDS), that costs approx. 5 euros + IVA per panel. We also sell panel cleaning materials.

What languages do you speak in the shop/office?

English, Dutch, Spanish, German and French.

What languages do the installers and electricians speak?

English, Spanish, German and Dutch.

Do you register/legalize systems of third parties?

No, we do not.

Do you finance, lease or rent systems?

No, at this moment we do not.

Do you sell materials seperately?

Yes, we do sell materials like inverters and solar panels separately.

Why choose Solar Power Systems?

Back in 1994 we started on the Costa Blanca with one mission: Use the many sun hours we have here.
  • Since 1994
  • 20.000+ clients
  • We speak Dutch, English, German, French and Spanish
  • We only use premium quality materials by A-brands
  • Almost 30 years of experience with solar panel systems on the Costa Blanca
  • FEMPA certified installers and electricians
  • Always including paperwork according to Spanish legislation
  • Attention to detail and the aesthetic impact of the system
  • More than 1.000 systems of experience on all roofs and surface types
  • Large physical showroom on the Calpe-Moraira coast-road
  • Everything under one roof: solar panels, heat pumps, pool heating, Air conditioning and more
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Going solar is easy!

Go solar in 5 easy steps and one day of installation.

  • 1
    Inquire

    Send us one of your electricity bills so that we have information about your consumption and electricity grid connection.

  • 2
    Quotation, report and information

    Using our software, we design a system based on your consumption and situation. We send you a detailed quotation, extensive production report and lot's of information.

  • 3
    Appointment

    For any questions or for discussing the quotation, you are most welcome in our shop in Calpe. If everything is clear, we make an appointment to see the situation on location. Our pre-specified prices will never change after a visit.

  • 4
    Installation

    The system is installed by our own FEMPA certified installers and electricians, with at least 500 of systems of experience.

  • 5
    Administration

    After the system is installed, we register the system via the Generalitat Valenciana and legalize the grid-injection via the grid operator. You don't have to do anything yourself.

All-in-one packages

All-in-one packages including all the necessary materials, services and paperwork. Packages are available starting from:
Huawei/Jinko (2,73 kWp)
huawei solar power systems
4.374 59.99
IVA included - 4.785 kWh per yearbilled yearly
Huawei Hybrid Residential Solar Inverter - 3 kW - 10 year product warrantyHuawei Hybrid Residential Solar Inverter - 3 kW - 10 year product warranty
Huawei Smart Power SensorHuawei Smart Power Sensor
Jinko Solar PV modules (6x) - 455W - Monocrystalline - 21,1% efficiency - HC PERC - 12 year product warranty (25 year linear power warranty)Jinko Solar PV modules (6x) - 455W - Monocrystalline - 21,1% efficiency - HC PERC - 12 year product warranty (25 year linear power warranty)
Würth PV module mounting materialsWürth PV module mounting materials
Additional electrical componentsAdditional electrical components
Full installation and configuration of all materials by our experienced and FEMPA certified electricians and installersFull installation and configuration of all materials by our experienced and FEMPA certified electricians and installers
Smartphone/tablet/laptop/pc apps and softwareSmartphone/tablet/laptop/pc apps and software
Registration of the system via the GVA (Generalitat Valenciana) and legalization of the system via the grid caretaker (I-DE)Registration of the system via the GVA (Generalitat Valenciana) and legalization of the system via the grid caretaker (I-DE)
Reimbursements for surplus electricityReimbursements for surplus electricity
Lifetime supportLifetime support
Huawei Smart PV optimizers (optional)Huawei Smart PV optimizers (optional)
Huawei Backup Box for backup during power cuts (optional)Huawei Backup Box for backup during power cuts (optional)
Huawei LUNA Battery storage (optional)Huawei LUNA Battery storage (optional)
Inquire now
SolarEdge/Hyundai (2,94 kWp)
solaredge solar power systems
5.468 89.99
IVA included - 5.150 kWh per yearbilled yearly
SolarEdge Hybrid Residential Solar Inverter - 3 kW - 12 year product warranty (expandable to 25 year warranty)SolarEdge Hybrid Residential Solar Inverter - 3 kW - 12 year product warranty (expandable to 25 year warranty)
SolarEdge Energy MeterSolarEdge Energy Meter
SolarEdge Power Optimisers (6x)SolarEdge Power Optimisers (6x)
SolarEdge Current TransformerSolarEdge Current Transformer
SolarEdge Wireless gatewaySolarEdge Wireless gateway
Hyundai PV modules (6x) - 490W - Monocrystalline - 21% efficiency - PERC shingled - 25 year product warranty (25 year linear power warranty)Hyundai PV modules (6x) - 490W - Monocrystalline - 21% efficiency - PERC shingled - 25 year product warranty (25 year linear power warranty)
Würth PV module mounting materialsWürth PV module mounting materials
Additional electrical componentsAdditional electrical components
Full installation and configuration of all materials by our experienced and FEMPA certified electricians and installersFull installation and configuration of all materials by our experienced and FEMPA certified electricians and installers
Smartphone/tablet/laptop/pc apps and softwareSmartphone/tablet/laptop/pc apps and software
Registration of the system via the GVA (Generalitat Valenciana) and legalization of the system via the grid caretaker (I-DE)Registration of the system via the GVA (Generalitat Valenciana) and legalization of the system via the grid caretaker (I-DE)
Reimbursements for surplus electricityReimbursements for surplus electricity
Lifetime supportLifetime support
SolarEdge Integrated EV-charger (optional)SolarEdge Integrated EV-charger (optional)
SolarEdge StorEdge Battery storage (optional)SolarEdge StorEdge Battery storage (optional)
Inquire now
Enphase/Sunpower (2,49 kWp)
Enphase solar power systems
6.461 129.99
IVA included - 4.365 kWh per yearbilled yearly
Enphase IQ7A Micro-inverter (6x) - 25 year product warrantyEnphase IQ7A Micro-inverter (6x) - 25 year product warranty
Sunpower Maxeon 5 PV Modules (6x) - 22% efficiency - 25 year product warrantySunpower Maxeon 5 PV Modules (6x) - 22% efficiency - 25 year product warranty
Enphase Envoy-SEnphase Envoy-S
Enphase IQ Cables (6x)Enphase IQ Cables (6x)
Enphase Terminal Cable 1PhEnphase Terminal Cable 1Ph
Enphase Current TransformerEnphase Current Transformer
Enphase Q-RelayEnphase Q-Relay
Würth PV module mounting materialsWürth PV module mounting materials
Additional electrical componentsAdditional electrical components
Full installation and configuration of all materials by our experienced and FEMPA certified electricians and installersFull installation and configuration of all materials by our experienced and FEMPA certified electricians and installers
Smartphone/tablet/laptop/pc apps and softwareSmartphone/tablet/laptop/pc apps and software
Registration of the systems via the GVA (Generalitat Valenciana) and legalization of the systems via de grid caretaker (I-DE)Registration of the systems via the GVA (Generalitat Valenciana) and legalization of the systems via de grid caretaker (I-DE)
Reimbursements for surplus electricityReimbursements for surplus electricity
Lifetime supportLifetime support
Enphase Battery-storage (optional)Enphase Battery-storage (optional)
Inquire now

String-inverters by Huawei

The best price-quality ratio

Huawei inverters can be expanded with battery storage, backup solutions for during power cuts and optimisers. When the solar panels have more than two different orientations or inclination angles, or when some panels can potentially have shade om them, optimisers are installed. Because the premium quality Huawei products have an interesting price, a grid-connected solar panel system with Huawei inverter offers the most interesting price/quality ratio in our opinion.

String-inverters with optimisers by SolarEdge

Simply the best and most advanced string-inverter system on the market

With SolarEdge inverters, every solar panel is outfitted with an optimisers by default, so the solar panels can have any orientation or inclination angle and will deal very efficiently with possible shadows on the panels. They can be expanded with battery-storage and integrated electric vehicle chargers. In our opinion, SolarEdge string-inverters are the best string-inverter systems on the market and the best option for people with an electric vehicle.

Micro-inverters by Enphase

Simply the best and most advanced micro-inverter system on the market

With a micro-inverter system, there will be no central inverter inside the house, but every individual solar panel will be outfitted with it’s own micro-inverter. These are the most efficient systems with the highest production. We advise micro-inverter systems for roofs with multiple orientations and inclination angles and/or roofs with shadows or when you want the highest possible production from your solar panel system. When using micro-inverters we exclusively work with Enphase micro-inverters

2021/2022: 500+ Installed systems, 500+ low electricity bills, 500+ happy clients !

2021/2022: 500+ Installed systems, 500+ low electricity bills, 500+ happy clients !