What could solar save you?

Where is your property?

Choose the nearest area. We use regional solar data; we check your exact address during the personal assessment. Elsewhere in the Balearics: this first estimate uses a provisional Mallorca reference; we check the island and exact location personally.

Where could the panels go?

Pitched roof

Flat roof

On the groundNot sure

No compass needed. For pitched roofs, this test assumes a gentle 15% slope (8.5°). Steeper roofs need a separate assessment.

What do you pay for electricity?

Use an average month across the year. You can also enter your annual consumption from your bill.

Monthly bill (€)Annual use (kWh)

Your average monthly bill€ / month

Enter your average bill across all 12 months, including months away.

When do you use the property?

All yearMostly in summerRegular visits

When do you mainly use electricity?

Mostly during the dayMostly in the eveningSpread across the dayNot sure

Is the installation area shaded?

Mostly sunnySome shadeA lot of shadeNot sure

Would you like a battery?

Without a batteryWith a batteryAdvise me

Not sure? We compare the example systems with and without storage before suggesting an option.

Optional: adjust the calculation

Choose your system size

We suggest an illustrative system from our four sizes, balancing simple payback and investment. Roof space and exact design are checked personally.

Electricity price (€/kWh)Fixed bill charges per month (€)Assumed surplus credit (€/kWh)VAT assumption (%)Optional: enter your total installed budget including VAT (€)

Screening model: average daily solar-window and evening demand within each month, the occupancy profile described below. Known usage profiles use a narrower scenario range; Not sure is wider. No hourly load data. Savings include direct use and, if selected, stored solar energy, with storage losses and capacity limits. Surplus credit is calculated separately at the assumed rate. Grants and financing are excluded.

Test budgets excl. VAT: 8 panels €6,000; 12 €7,500; 16 €8,500; 32 €11,500. The 16/32 budgets extrapolate from the 8/12 reference with an allowance for inverter/electrical scaling. Battery allowance +€2,500 per unit incl. fitting/transport allowance, not a confirmed TLS installed price. VAT defaults to 21%; final treatment is confirmed in the proposal. You can override the total investment above.

Could support reduce your investment?

Start without support. A selected route is conditional and must be checked for your residence, project, timing and usable tax liability. No automatic stacking. You pay the full installation first; this simulation assumes the benefit arrives in the selected year. Municipal annual savings are excluded.

Explore one support route

2026 · Explore one support route

FACTOR: eligible individual domiciled in the Balearics, qualifying registered storage, itemised eligible costs and funding approval; the Marstek configuration still needs TLS eligibility confirmation. Balearic 50%: qualifying main home, taxable base ≤ €33,000 individual / €52,800 joint, registered before/after energy certificates improving at least one rating. Spanish 40%: qualifying home, ≥30% reduction in non-renewable primary energy or A/B rating and required certificates; works completed by 31 December 2026 and the after-works certificate issued before 1 January 2027. Spanish 10%: owner, qualifying non-business installation completed and paid in 2026, required permits and electrical certificate. Enter only the tax liability remaining for the relevant state or regional deduction. No subsidy is guaranteed.

Assumed receipt year after installation

Optional: verified one-off grant / tax benefit (€)

2026 · Mallorca

FOTOPAR 2026: new applications closed on 30 April 2026. Existing awards must be assessed individually.

Balearic FACTOR 2026–2027: battery support can reach 45% of eligible capped cost for eligible individuals. Individual applicants cannot access its PV programme. Published deadline: 28 February 2027, subject to funds and project conditions.

FACTOR: eligible individual domiciled in the Balearics, qualifying registered storage, itemised eligible costs and funding approval; the Marstek configuration still needs TLS eligibility confirmation. Balearic 50%: qualifying main home, taxable base ≤ €33,000 individual / €52,800 joint, registered before/after energy certificates improving at least one rating. Spanish 40%: qualifying home, ≥30% reduction in non-renewable primary energy or A/B rating and required certificates; deadlines apply. Spanish 10%: owner, qualifying non-business installation completed and paid in 2026, required permits and electrical certificate. Enter only the tax liability remaining for the relevant state or regional deduction. No subsidy is guaranteed.

Spanish IRPF 2026: new renewable self-consumption deduction of 10% or 20%, with a €5,000 annual base limit; maximum €500 or €1,000. An alternative energy-efficiency deduction may apply (40% with a €7,500 base limit), requiring qualifying improvements and energy certificates. These deductions cannot be stacked for the same installation; grants reduce the deduction base. Tax status and usable tax liability matter.

Municipal IBI / ICIO benefits depend on the exact town, property and application. We check these in the Solar-check; regional location alone is insufficient.

FOTOPAR · CAIB · FACTOR · BOIB · IRPF · AEAT · Balearic IRPF · BOE

ECOVIVA SOLAR

Your first solar estimate

Illustrative calculation. The selected panel count and battery option are used below; final sizing follows your property assessment.

Potential annual bill saving

Estimated simple payback

Estimate subject to property assessment, final quotation and actual consumption. Tax benefits require eligible tax status and sufficient tax liability; the Balearic 50% deduction requires a qualifying main residence. A second home does not automatically qualify. Support is subject to eligibility, approval where required and available funds. Municipal IBI/ICIO benefits are not included.

Request my personal Solar-check

No contact details needed to see the estimate. Your answers are transferred to Fillout when you choose the Solar-check.

Let us check your available support

Depending on your property and tax situation, the Balearic income-tax benefit may reach €5,000. This is a tax deduction, not a guaranteed cash grant: a qualifying main residence, income limits, energy certificates and sufficient tax liability are required. Battery support may separately cover up to 45% of eligible capped costs, subject to eligibility, funding and approval. Benefits are not automatically combined or included in this standard estimate.

What do these benefits mean?

Income-tax deduction: Reduces the Spanish income tax you owe. The Balearic route can reach €5,000 for an eligible main residence, subject to income limits, energy certificates and sufficient tax liability. It is not an automatic cash payment.
Battery grant: FACTOR may cover up to 45% of capped eligible storage costs. Eligibility, the chosen battery, available funding and approval must be checked.
Municipal benefits: IBI is your annual property tax; ICIO is the municipal construction tax. Any reduction depends on your municipality and application. It is not a discount on your electricity bill.

Optional: is this your main residence?

Main residenceSecond homeNot sure

Request my personal Solar-check →

Estimated investment

Indicative budget including the VAT assumption shown. Standard accessible roof; ground foundations, roof repairs and exceptional access are additional.

Estimated annual solar production

kWh / year

Compare other system sizes

Compare the four sizes

Panels	Annual saving	Without support	Conditional support	Investment incl. VAT

Illustrative system

Indicative budget including the VAT assumption shown. Standard accessible roof; ground foundations, roof repairs and exceptional access are additional.

See and adjust the assumptions

Regional PVGIS data already accounts for Mallorca sunshine and seasonal variation. Pitched roof: a low-slope example at 8.5° (15% pitch), comparing east, south, west and north. Flat roof: provisional 10° east-west module mounting; ground: separate 30° rack example. These are installation assumptions, not a claim about every Mallorca roof. Shade and household usage remain uncertain; Not sure deliberately widens the range.

Screening model: average daily solar-window and evening demand within each month, the occupancy profile described below. Known usage profiles use a narrower scenario range; Not sure is wider. No hourly load data. Savings include direct use and, if selected, stored solar energy, with storage losses and capacity limits. Surplus credit is calculated separately at the assumed rate. Grants and financing are excluded.

14% system losses. Regional coordinates, not an address-level roof survey. Shade and self-use factors are screening assumptions, not PVGIS outputs. No extra multiplier for sunshine days.

Daytime demand assumptions: day 60–70%, evening 25–35%, mixed 45–55%, unknown 25–70%. Solar overlap factor 80–90%. Battery: 5.12 kWh nominal per unit, 90% usable allowance, 90% round-trip efficiency and maximum one cycle per day. These are screening assumptions; actual metering and controls may differ.

Mostly in summer assumes 80% of annual electricity use from May to October and 20% in the other months. All year and regular visits use an even daily annual profile; exact occupancy and meter data are reviewed personally.

Automatic suggestion compares unsubsidised simple payback across the four indicative budgets. Among options within 5% of the fastest payback, the lower investment is preferred. This is an illustrative starting point, not a verified roof design.

Test budgets excl. VAT: 8 panels €6,000; 12 €7,500; 16 €8,500; 32 €11,500. The 16/32 budgets extrapolate from the 8/12 reference with an allowance for inverter/electrical scaling. Battery allowance +€2,500 per unit incl. fitting/transport allowance, not a confirmed TLS installed price. VAT defaults to 21%; final treatment is confirmed in the proposal. You can override the total investment above.

Simple payback = total investment ÷ first-year annual saving. It assumes unchanged tariffs and performance; maintenance, degradation, replacement, financing and inflation are excluded. A payback longer than battery life needs a replacement-cost assessment.

Includes an example surplus credit at the rate shown. Set it to zero if you have no eligible compensation contract. Credit is capped monthly at remaining imported-energy cost. No virtual wallet, grid charging, peak-hour battery sales or double-counting of stored energy.

Solar production source: European Commission JRC · PVGIS 5.3