Solar panels, batteries and EV chargers in south Tenerife, designed and installed by a qualified electrician.
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Solar panel installation in Tenerife, designed and installed by an electrician
PiconSolar is the solar side of Voltech Smart Home, based in Costa Adeje. We design self-consumption systems around your real consumption, install them to the Spanish low-voltage regulations (REBT) and handle the legalisation so your surplus is compensated under RD 244/2019. You deal with one qualified electrician from the survey to the handover. English, Español, Polski.
How to contact PiconSolar: options and hours
The fastest route is WhatsApp or a phone call. Send a photo of a recent electricity bill, a photo of the roof and a photo of your consumer unit (cuadro eléctrico) and we can tell you on the first call whether solar makes sense for the property, roughly what size of system fits, and what the next step is. No long forms and no sales visit.
Saturday by arrangement
Whole south of the island
What we install in the Canary Islands
Solar PV self-consumption
Grid-connected systems for villas, houses, apartments and businesses.
- Monocrystalline modules, string or hybrid inverters
- String design to the inverter MPPT voltage and current window
- DC isolation, surge protection and correct earthing
- Zero-export (antivertido) or surplus compensation
Battery storage
Storage sized to your evening consumption, not to a package.
- LFP (lithium iron phosphate) chemistry
- Hybrid (DC-coupled) or AC-coupled retrofit
- Usable capacity and cycle warranty compared in writing
- Ventilated, shaded siting
EV charge points
Wallboxes for houses, villas and community garages.
- Installed to ITC-BT-52
- Dedicated circuit and correctly rated breaker
- RCD with DC leakage detection (Type A with 6 mA DC detection, or Type B)
- Dynamic load management and solar-surplus charging
Maintenance and fault finding
For any system, ours or someone else’s.
- Inverter fault codes and earth faults
- Insulation resistance and string tests
- Monitoring set-up and Wi-Fi reconnection
- Annual inspection and panel cleaning
Why solar works so well in the south of Tenerife
Solar output is measured in kWh generated per year for every kWp (kilowatt peak) of panels installed. The south of Tenerife has around 2,800 hours of sunshine a year and a very flat seasonal curve: a December day still produces useful power. That changes how a system is sized compared with mainland Spain or northern Europe.
| Location | Typical yield, kWh per kWp per year | What it means |
|---|---|---|
| South of England | around 900 | Long payback, strong winter drop |
| Madrid | around 1,400 | Good, but hot summers and cold winters |
| Tenerife Sur | around 1,700 to 1,800 | High and stable across the year |
Heat is the local detail most installers ignore. Crystalline modules lose output as cell temperature rises (the temperature coefficient on the datasheet, typically around -0.3 to -0.4 % per °C of Pmax). We mount with an air gap behind the panels and keep inverters and batteries out of direct sun, because a hot inverter derates and a hot battery ages faster.
How we design a system: the technical checklist
Every quote is built from the same checklist. You receive it in writing with the actual model numbers of the panels, inverter and battery, so you can compare it line by line with any other quote.
| Stage | What we check | Why it matters |
|---|---|---|
| Consumption profile | 12 months of bills, contracted power (potencia contratada), daytime versus evening use | Sizing against the RD 244/2019 compensation cap, not against roof area |
| Roof and shading | Orientation, tilt, obstacles (water tanks, aerials, parapets) at different sun angles | Partial shade on one module can pull down a whole string |
| String design | Module Voc at low temperature, Vmp and Imp against the inverter MPPT range and max input current | Keeps the inverter in its efficient window and inside its limits |
| DC side | Solar cable (H1Z2Z2-K), MC4-compatible connectors from the same system, DC isolator, DC surge protection | Most PV fires start at badly crimped or mixed-brand connectors |
| AC side | Dedicated circuit, MCB and RCD selection, cable sizing for current and voltage drop | Safe connection into your consumer unit |
| Earthing and bonding | Frame and structure bonding, earth continuity, earth electrode where needed | Protection against faults and lightning-induced surges |
| Commissioning | Polarity, open-circuit voltage, short-circuit current, insulation resistance, functional test of protections | A written test record for your file and your insurer |
| Monitoring | Inverter app on your phone, production and consumption measurement | You can see what the system does every day |
How we work: the process for every installation
First call or WhatsApp
You send a bill, a roof photo and a photo of the consumer unit. We tell you honestly whether solar is worth it, including when it is not.
Free site survey
We look at the roof, shading, the consumer unit, the meter and the cable route on site, not on satellite images.
Written, itemised quote
Materials with model numbers, labour, paperwork and expected annual generation. No finance pressure and no expiring discounts.
Installation
Typically one to two days on a domestic system: structure, modules, inverter, protection and connection.
Testing and commissioning
Electrical tests, protection tests and monitoring set-up. You get a walk-through of the system and the app.
Legalisation
Electrical installation certificate, registration of the self-consumption installation and the surplus compensation contract with your retailer.
Comparison: solar sales company, general installer or PiconSolar?
| Solar sales company | General installer | PiconSolar | |
|---|---|---|---|
| Who you speak to | Commission-based sales agent | Office, then a crew | The electrician who installs it |
| How the system is sized | Standard packages | Varies | From your consumption profile |
| Model numbers in the quote | Often “or equivalent” | Varies | Always |
| Electrical testing record | Rarely handed over | Varies | Included |
| Languages | Usually Spanish | Usually Spanish | English, Spanish, Polish |
| After-sales | Call centre | Office | Same person who installed it |
Solar myths in the Canaries that cost people money
“Bigger is always better”
Under RD 244/2019 simplified compensation, the credit for exported surplus cannot exceed the energy part of that month’s bill. Past a certain size you are giving energy away. The right size comes from your consumption, not from how many panels fit on the roof.
“You always need a battery”
If most of your consumption is in daylight (pool pump, air conditioning, home office), extra panels usually return more than a battery. A battery earns its place when your consumption is mostly after dark or you want backup.
“South-facing or nothing”
At this latitude the sun is high for most of the year, so east, west and south-east roofs still perform well. Shade is what really destroys output.
“Solar panels need no maintenance”
Calima dust and salt reduce output, and connectors and inverters age. A yearly check and clean keeps the system producing what it should.
“Paperwork is optional”
Without the electrical certificate and registration the installation is not legal, is usually not covered by insurance, cannot receive grants and does not get surplus compensation.
The paperwork for a legal self-consumption installation
| Document or step | What it is |
|---|---|
| CIE (Certificado de Instalación Eléctrica) | The low-voltage installation certificate, filed with the Gobierno de Canarias |
| Registration of self-consumption | Entry of the installation in the regional self-consumption register, which is passed to the national register |
| Distributor | The distribution company for your supply point is informed and the meter configuration is updated |
| Surplus compensation contract | Signed with your electricity retailer so exported energy is credited on your bill under RD 244/2019 |
| Municipal licence or communication | Depends on the municipality and the building; checked at survey stage |
Who we work for
Villas with pools
Pool pumps and air conditioning run in daylight: the best solar case in the south.
Holiday lets
Daytime laundry, air conditioning and remote monitoring when you are not on the island.
Apartments and communities
Individual or shared self-consumption, community garage chargers.
Businesses
Shops, offices, restaurants and workshops with daytime consumption.
Foreign owners
Everything explained in English or Polish, paperwork in Spanish handled for you.
Existing systems
Battery retrofits, faults and systems whose installer has disappeared.
Where we work in Tenerife
Based in Costa Adeje, covering the south and south-west of the island: Adeje, Costa Adeje, Playa Paraíso, Callao Salvaje, Playa de las Américas, Los Cristianos, Arona, Guía de Isora, Santiago del Teide, San Miguel de Abona, Golf del Sur and Granadilla de Abona. The north of the island by arrangement.
Quick glossary for reading a solar quote
- kWp (kilowatt peak)
- Panel power under standard test conditions. The size of the system.
- kWh
- Energy. What your bill charges for and what the system produces.
- Inverter / hybrid inverter
- Converts DC from the panels to AC for the house. A hybrid inverter also manages a battery.
- MPPT
- Maximum power point tracker. The inverter input that keeps each string at its best operating point.
- String
- A group of panels wired in series to one MPPT input.
- Antivertido (zero export)
- Configuration that prevents any energy being exported to the grid.
- Compensación simplificada
- The RD 244/2019 mechanism that credits exported surplus against the energy part of your bill.
- LFP
- Lithium iron phosphate battery chemistry: long cycle life, better tolerance of heat.
- DoD (depth of discharge)
- How much of the battery’s nominal capacity is actually usable.
- CIE / boletín
- The official electrical installation certificate in Spain.
Before you contact us: what to have ready
- A recent electricity bill, ideally with the 12-month consumption graph
- Photos of the roof, including water tanks, aerials and anything that casts shade
- A photo of the consumer unit (cuadro eléctrico) with the cover open
- Whether you want a battery, an EV charger now or later, or backup during power cuts
- For apartments: whether the roof is private or shared with the community
Frequently asked questions
How long does an installation take?
A typical domestic system is installed in one to two days. Legalisation and the compensation contract take longer and depend on the administration and the distributor.
Can I add a battery to my existing system?
Usually yes. Whether your inverter accepts a battery directly or needs an AC-coupled unit depends on the model. We check it before quoting.
Will the system work during a power cut?
A standard grid-tied inverter switches off during a cut for safety. Backup needs a hybrid inverter with a battery and a backup output wired to selected circuits.
Do you install in apartment buildings?
Yes, where the community roof or your private roof allows it. Community agreement is required for shared roofs.
Do you speak English?
Yes. English, Spanish and Polish.
Talk to the electrician before you buy
Send a bill and a photo of the roof on WhatsApp. You get an honest first answer, including when solar is not worth it.
© 2026 PiconSolar · Voltech Smart Home · Costa Adeje, Tenerife