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FEMPA solar power systems

How do grid-connected solar panel systems work?

Solar panels generate electricity during the day, which is immediately used by all systems and devices inside the house. When your house needs more electricity than the solar panels are generating, additional electricity is taken from the grid. When the solar panels are generating more electricity than your house needs, the surplus electricity is injected into the grid.
Much lower electricity bills

The average system based on your electricity consumption, can lower your electricity bills with approx. 80%.

Reimbursements for surplus electricity

Your electricity supplier will reimburse your surplus electricity. This will be taken off the costs for electricity taken from the grid.

Store surplus electricity

Optionally, surplus electricity can be stored inside batteries for electricity used at night and peaks of consumption during the day.

Premium materials

We only use premium components and the highest quality of mounting-materials.

Including paperwork

All systems are registered via the Generalitat Valenciana and your municipality and legalised via the grid-operator.

Long warranties

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

Short payback period

Most of our clients have a payback period of less than 6 years.

Experienced installers

All our installers and electricians have at least 250 systems of experience.

FEMPA certified

All our installers and electricians have the right qualifications.

Since 1994

We have more than 30 years of experience with solar panels in Spain.

Languages

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

All surface types

We install on any roof and surface type.

EV-chargers

We can install EV-chargers with any system.

Apps and software

View every detail about production and consumption on your smartphone, tablet or pc.

Battery-storage

Our systems can always be extended with battery storage, immediately or at a later stage.

What main components does a solar panel system consist of?

Solar panels

Solar photovoltaic panels capture sunlight to create electricity. The solar panels we use in our systems are picked with 30 years of experience on the Costa Blanca. We only work with monocrystalline tier 1 A-brands such as Hyundai and Sunpower, with an efficiency of 21% or higher and a warranty of 25 years.

An inverter or micro-inverters

An inverter inverts DC electricity produced by the solar panels into AC electricity, the type of electricity we use in our homes. Depending on the situation, we will advise a string-inverter, where one main inverter is placed inside the house, or micro-inverters, where each panel will have its own individual inverter on the back of the solar panel. Wether we use a string-inverter or micro-inverters depends on multiple things, such as shade and having multiple different roof inclinations and/or orientations. We only install premium hybrid inverters by global market leaders such as Huawei, SolarEdge and Enphase. 

Optimisers (when necessary)

When a string-inverter is used, panels that can potentially have shade on them should be outfitted with an optimiser, so that they won’t negatively influence the panels in full sunlight, where there is shade on them. They also offer more options in terms of using roofs with different inclinations and/or orientations. 

Solar panel mounting materials

We install solar panels on any location. This can be on roof tiled roofs, flat roofs or carports, using wind-proof aluminium structures with wind-skirts and in gardens/on the ground using prefab concrete foundations. Panels can also be installed on vertical walls. Any mounting system we use is leakage and storm proof.

Battery-storage (optional)

Wether battery-storage is a good investment for you, depends on multiple factors. We often advise our clients to add battery storage to the system at a later point in time, when we have more information about your production, consumption and surplus electricity, as battery-storage is relatively expensive in comparison to the main solar panel system. Battery storage can be interesting when you charge the battery every day, and discharge the battery every night. As we install hybrid systems, you always have the option to add battery-storage to the system. Also keep in mind that you now get a relatively high reimbursement for surplus electricity in comparison to many Northern European countries. 

Solar panels solar power systems
huawei logo solar power systems
enphase logo solar power systems
hyundai logo solar power systems
sunpower logo solar power systems
Iberdorla solar power systems

Registration via the Generalitat Valenciana (GVA)

After installation the system is registered via the Generalitat Valenciana. The paperwork and costs for this are included in our prices and you don’t have to do anything yourself.

Legalisation of the grid-injection via the grid-operator (I-DE)

The injection of surplus electricity into the grid is legalised via the grid-operator. The grid-operator will inform the electricity supplier so that the electricity supplier can start compensating you for the injected surplus electricity. The paperwork and costs for this are included in our prices and you don’t have to do anything yourself.

Reimbursements for surplus electricity

Your electricity supplier will reimburse your surplus electricity. The energy market decides how high this reimbursement is. This is between 10 and 20 cents. Via the app called ”redOS” by ”red electrica de España”, you can check what the current reimbursements are but mind that these change per hour. The money you receive for the injected surplus electricity will be deducted of the money you still have to pay to your supplier, for electricity used at night for example. Your electricity supplier can see how much surplus  electricity you are injecting into the grid through the digital meter (often beside the entrance of your plot). The surplus electricity will be deducted per month and will be mentioned on your electricity invoice under ”compensacion exedentes”. Reimbursements will not be taken off the fixed costs (taxes, grid maintenance costs etc).

Complete control, wherever you are

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

Pruduction

View how much electricity the solar panels are generating.

Grid

View how much surplus electricity you inject into the grid and how much electricity you still take from the grid.

Revenue

View how much you are saving and how fast you are earning your investment back.

app solar power systems
Consumption

View how much electricity your house is using.

Battery

View how much battery-life you have and details about charging/discharging.

An much more!

View graphs, tips, tricks, and all the data about your system you need!

Going solar is easy!

Going solar in 5 easy steps and one day of installation.
  • 1
    Inquiry and design

    Send us a recent electricity bill or visit our office. With the right information about your consumption, type of connection/contract, possible future consumption and possible special wishes, we will design a tailor-made system, based on your exact situation.

  • 2
    Quotation, report and information

    We will send you a detailed quotation, extensive production report and all the information you need. For any questions, remarks, demonstrations or changes to the proposed system, you are always welcome in our office in Calpe.

  • 3
    Location visit

    Due to the large demand, we unfortunately can’t visit everyone on location to discuss the proposal anymore, but if the proposed system is clear to you, we would be happy to visit you on location to see the situation technically before installation. The price we give you before we visit will never get higher.

  • 4
    Installation

    Our systems are installed by our own FEMPA certified electricians and installers, with each at least 250 systems of experience, on any roof, home or surface type. From modern villas to hundred of year old fincas. The system is installed in one day.

  • 5
    Administration

    After the system has been installed, we register the system via the Generalitat Valenciana and your municipality and we legalise the injection of surplus electricity via the grid-operator, so that your electricity supplier can start reimbursing you. You don’t have to do anything yourself.

Frequently Asked Questions

About grid-connected solar panel systems in Spain.

System

What does an inverter do?

Solar panels generate DC electricity. An inverter inverters this into AC electricity, the type of electricity we use in our houses.

Do you use string-inverters or micro-inverters?

Depending on the situation, we use string-inverters or micro-inverters. With a string-inverter, the solar panels will be connected to one central inverter. With micro-inverters, every solar panel will have it’s own micro-inverter on the back. When you have one, two or possibly three different roofs with different orientations/inclinations, we advise a string-inverter, possibly with optimisers. When you have more than 3 different roofs with different orientations/inclinations or a roof with a lot of shade, we advise micro-inverters.

What solar panels do you use?

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

What about optimisers?

In a string-inverter system, optimisers can be attached to the back of the solar panels to constantly monitor the panel voltage/current and work to mitigate any mistmatch effects so that each solar panel can operate at its maximum power level. Optimisers are installed on panels that can potentially have shade on them, or on all panels if there are more than 2 different orientations/inclinations. If there is no risk of shade and there are no more than two orientations/inclinations, optimisers are not always necessary and would only make the system unnecessarily more expensive.

What about battery-storage?

Surplus electricity can be stored inside batteries. Your home will use the stored electricity at night and at times when the house needs more electricity than the panels are generating. We often advise to install battery storage after living with the solar panels for a while, 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.

What about 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. A disadvantage of integrated EV-chargers is that the inverter has to be installed near to where you park your car, which is not always the most aesthetically pleasing option.

What happens during a power cut?

During a power cut the system stops working, unless a backup box or UPS solution in combination with battery-storage is used.

Can the panels get too hot in summer?

The panels can get hot in summer but not too hot. The losses in summer due to heat are calculated in the production report you receive with the quotation.

Installation

Where do you install?

We install on the Marina Alta and Marina Baja from Denia to Finestrat.

How are the panels installed on roofs with roof tiles?

When the solar panels are installed on roof tiles, we use a storm and leakage proof mounting system with materials by Würth. We drill a hole trough the upper roof tile and the bardo below the roof tile (red stone below the roof tiles) and place a threaded end inside. This is sealed around with a special water-proof adhesive. On the threaded end a profile is mounted and the solar panels are mounted onto the profile.

What happens if roof tiles break during installation?

Any roof tiles that break during installation will be replaced by us.

How are the panels installed on flat surfaces?

On flat roofs we mostly work with aluminium structures with wind-skirts and weights. On the ground we mostly work with prefab concrete foundations.

Can panels be installed on vertical walls?

Yes, using aluminium structures we also install panels on vertical walls.

Can I expand the system with more panels later?

Yes, in most cases you can. If you would like to expand with more than 2/3 solar panels in the future, we advise stronger inverter for relatively low additional costs.

Service

Does the system need maintenance?

No, these systems do not need maintenance.

Do you install of-grid systems?

Yes, we do. For any questions about off-grid systems please visit our office.

Do the panels need to be cleaned?

Cleaning the panels will increase the production. We advise to clean the panels with water after sand-rains, in the early morning or late afternoon. If you have not been in Spain for months and the panels are very dirty, we advise to clean them with a soft brush or to have them cleaned. Cleaning the panels costs 5 euros per panel for easy to reach panels and 8 euros for hard to reach panels.

Do you register/legalise systems of third parties?

No, we do not.

Is there a subsidy/grant?

Next generation subsidy/grant

We are immediately open and honest about subsidies in Spain and we do not make it sound better than it is. Of the tens of thousands of applications, including some of our customers who are gestors or engineers in Spain and who deal with applying for subsidies on a daily basis, none have been refunded anything after almost 2 years of waiting. Many Spanish agencies that specialize in applying for subsidies now indicate that there is no longer any money available for this subsidy and that they are no longer processing new applications. For this reason, we do not apply for subsidies ourselves and we do not use texts such as “including subsidy application” in our quotations, which may give you the impression that you will receive money back through subsidies.

Do you sell materials without installation?

Yes, we do, in our shop in Calpe (not via internet).

Do you sell installation of systems only?

No, we only sell and install complete packages including all materials and installation and we sell materials separately, without installation.

Do you lease or finance systems?

No, we do not.

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 English, Dutch, German, Spanish and French
  • We only use premium quality materials by A-brands
  • More than 30 years of experience with solar panels on the Costa Blanca
  • FEMPA certified electricians and installers
  • Always including all administrative paperwork according to Spanish law
  • Great attention to detail and the aesthetic impact of the system
  • Life-long support and after-service
  • Honest advise regarding subsidies/grants
  • More than 1.000 grid-connected systems installed
  • Large physical office on the Calpe-Moraira coastal-road
  • Everything under one roof: Solar panels, heat pumps, pool heating, air condition and more

All-in-one packages

All-in-one packages including all materials, services and paperwork. No additional costs. Prices are on the base of single phase components, installed on a roof with roof tiles (south aimed, 25 degrees inclination) and without optimisers. Three phase systems and systems installed on flat roofs are slightly more expensive. For prices for SolarEdge systems and Enphase micro-inverter systems, please visit our shop.
2,94 kWp - 5.510 kWh per year
hyundai logo solar power systems
4.889,- 59.99
IVA includedbilled yearly
Huawei hybrid residential solar inverter - 3 kW (4,5 kWp) - 10 year warrantyHuawei hybrid residential solar inverter - 3 kW (4,5 kWp) - 10 year warranty
Huawei Smart power sensorHuawei Smart power sensor
Hyundai Solar panels (6x) - 490W - Monocrystaline - 21% efficiency - PERC shingled - 25 year year warrantyHyundai Solar panels (6x) - 490W - Monocrystaline - 21% efficiency - PERC shingled - 25 year year warranty
Würth roof mounting materialsWürth roof mounting materials
Additional electrical componentsAdditional electrical components
Full installation and configuration by our experience and FEMPA certified electricians and installersFull installation and configuration by our experience and FEMPA certified electricians and installers
Smartphone/tablet/pc apps and softwareSmartphone/tablet/pc apps and software
Registration of the system via the Generalitat Valenciana and legalisation of the grid-injection via the grid-operatorRegistration of the system via the Generalitat Valenciana and legalisation of the grid-injection via the grid-operator
Reimbursements for injected surplus electricityReimbursements for injected surplus electricity
Lifetime supportLifetime support
Huawei Optimisers (optional)Huawei Optimisers (optional)
Huawei LUNA lithium-ion battery storage (optional)Huawei LUNA lithium-ion battery storage (optional)
Huawei backup box for power cuts (optional)Huawei backup box for power cuts (optional)
Inquire now
4,41 kWp - 7.725 kWh per year
hyundai logo solar power systems
6.557,- 59.99
IVA includedbilled yearly
Huawei hybrid residential solar inverter - 5 kW (7,5 kWp) - 10 year warrantyHuawei hybrid residential solar inverter - 5 kW (7,5 kWp) - 10 year warranty
Huawei Smart power sensorHuawei Smart power sensor
Hyundai Solar panels (9x) - 490W - Monocrystaline - 21% efficiency - PERC shingled - 25 year year warrantyHyundai Solar panels (9x) - 490W - Monocrystaline - 21% efficiency - PERC shingled - 25 year year warranty
Würth roof mounting materialsWürth roof mounting materials
Additional electrical componentsAdditional electrical components
Full installation and configuration by our experience and FEMPA certified electricians and installersFull installation and configuration by our experience and FEMPA certified electricians and installers
Smartphone/tablet/pc apps and softwareSmartphone/tablet/pc apps and software
Registration of the system via the Generalitat Valenciana and legalisation of the grid-injection via the grid-operatorRegistration of the system via the Generalitat Valenciana and legalisation of the grid-injection via the grid-operator
Reimbursements for injected surplus electricityReimbursements for injected surplus electricity
Lifetime supportLifetime support
Huawei Optimisers (optional)Huawei Optimisers (optional)
Huawei LUNA lithium-ion battery storage (optional)Huawei LUNA lithium-ion battery storage (optional)
Huawei backup box for power cuts (optional)Huawei backup box for power cuts (optional)
Inquire now
5,99 kWp - 10.300 kWh per year
hyundai logo solar power systems
7.766,- 59.99
IVA includedbilled yearly
Huawei hybrid residential solar inverter - 6 kW (9 kWp) - 10 year warrantyHuawei hybrid residential solar inverter - 6 kW (9 kWp) - 10 year warranty
Huawei Smart power sensorHuawei Smart power sensor
Hyundai Solar panels (12x) - 490W - Monocrystaline - 21% efficiency - PERC shingled - 25 year year warrantyHyundai Solar panels (12x) - 490W - Monocrystaline - 21% efficiency - PERC shingled - 25 year year warranty
Würth roof mounting materialsWürth roof mounting materials
Additional electrical componentsAdditional electrical components
Full installation and configuration by our experience and FEMPA certified electricians and installersFull installation and configuration by our experience and FEMPA certified electricians and installers
Smartphone/tablet/pc apps and softwareSmartphone/tablet/pc apps and software
Registration of the system via the Generalitat Valenciana and legalisation of the grid-injection via the grid-operatorRegistration of the system via the Generalitat Valenciana and legalisation of the grid-injection via the grid-operator
Reimbursements for injected surplus electricityReimbursements for injected surplus electricity
Lifetime supportLifetime support
Huawei Optimisers (optional)Huawei Optimisers (optional)
Huawei LUNA lithium-ion battery storage (optional)Huawei LUNA lithium-ion battery storage (optional)
Huawei backup box for power cuts (optional)Huawei backup box for power cuts (optional)
Inquire now

View 75 examples of systems installed by us:

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