§ 02 — Tools · Calculator

How much can you save per month with solar panels in Málaga.

In less than a minute, a clear estimate: how much your bill drops, what investment to expect, and the payback time. PVGIS data per municipality · current OMIE prices · no phone, no personal data.

Calculate my savings Takes ≈ 30 s · 3 inputs
§ 02 · Calculator · step by step

Three questions, one estimate.

We ask only what's needed. Takes less than 30 seconds, no phone or email required.

Step 1 of 3

How much do you pay for electricity per month?

Add your last three bills and divide by three. If you don't have them at hand, an approximate estimate works.

€/month
Average kWh price in Spain (OMIE 2026 Q1) is €0.13/kWh.
Step 2 of 3

Where is the roof?

We use this to read the exact PVGIS irradiance for your municipality — not by province. Málaga city is 1,652 kWh/kWp/year.

For Málaga 1,652 kWh/kWp/year PVGIS v5.2 · JRC
Step 3 of 3

Does your roof have shading?

A chimney, a nearby building, a large tree. If unsure, leave it as 'clear' — we fine-tune it during the on-site visit.

Your estimate

Your bill could drop by 74 % per month.

Simulated case Málaga · single-family · 4 people
south-facing roof 30° · no shading
consumption 8,769 kWh/year

Your bill drops from €95 average to roughly:

€95€25/mo
Annual savings of about ≈ €838 · with a 6 kWp installation
Estimate. Depends on your actual case.
Investment
€7840
Q2 market · VAT 21% incl.

Turnkey · 6 kWp · 12 panels 500 W · string inverter.

Production / year
9,912 kWh
PVGIS v5.2 · Málaga

6 kWp × 1,652 kWh/kWp/year.

Bill savings / year
€838
OMIE 2026 Q1

Self-consumption 35% (no battery) · grid feed 65%.

Estimated payback
9.4 years

Indicative — depends on actual consumption.

§ 03 · Assumptions See everything we assumed (11)

If any doesn't fit your case, adjust above and recalculate. If something feels off, we'll discuss it on-site.

  • Production 1,652 kWh/kWp/year Verified PVGIS v5.2 — JRC Málaga
  • Electricity price €0.13/kWh Verified OMIE 2026 Q1
  • VAT (solar) 21% Verified Spanish Law 37/1992
  • IRPF deduction 20% · first year Verified BOE-A-2026-6544
  • Self-consumption (no battery) 35% · grid feed 65% With battery rises to 65–80% depending on capacity.
  • DSO E-Distribución (Endesa) Simplified compensation
  • INEA P4 grant Not applicable Programme closed since 2025
  • Panel degradation −0.5% per year Manufacturer 25-year warranty
  • Electricity inflation +3% per year Average OMIE 2015-2024
  • No battery +€2-4k if you want one 5-15 kWh raises self-consumption to 65-80%
  • Real production ±10% vs estimate Shading, dust, exact orientation
The next step

From estimate
to a firm quote.

We climb to the roof, measure what a form can't see, and deliver a signed quote in days. Free of charge, no obligation.

Request technical visit
§ 05 · The full report

Email optional. The calculation above is already yours — this is the full dossier. No newsletter.

  • Month-by-month production (12 months)
  • Comparison with / without battery
  • Property tax table for your municipality
  • 3 financing options
  • No spam
  • We delete your email if you don't reply
  • We don't share with installers

What this calculator can't see

Why we don't give a closed quote here.

Six variables can swing the budget by 10 to 35%. None can be measured from a form — that's why the range above is an estimate and the firm number comes after. To understand cost structure better, see our solar pricing guide for Málaga.

  • Real tilt

    We assume 30°. Your roof may have 12° (flat terrace) or 45° (pitched roof), and that changes annual production.

    ±8–12%
  • Year-round shading

    A chimney, antenna or a neighbour's palm tree can cut production depending on hour and month. Only visible with a shade meter.

    −5 to −25%
  • Roof condition

    If a tile is loose or the roof leaks, no serious installer mounts on top. Costs more to repair after the fact.

    + repair
  • Distance to electrical panel

    Pulling 15 m of solar cable isn't the same as 45 m. It changes required cross-section and line losses.

    +€ cable
  • Wiring cross-section

    Pre-1980 houses with old copper sometimes need a main line upgrade. Not always, but it must be checked.

    + upgrade
  • Site accessibility

    Crane needed? Truck access? Permits for street occupation? Real cost varies.

    +€200–800

From range to firm quote

How we work:
from estimate to a signed number.

Three steps from the order of magnitude you just saw to a written closed quote with brands, warranties, and timelines.

01 Phone call

We confirm the basics

Address, roof type, approximate consumption. If you live in a community of owners, we tell you which papers you'll need.

By phoneNo commitment
02 On-site roof visit

We measure what matters

We climb with shade meter and laser rangefinder. We log tilt, orientation, year-round shading, accessibility, and distance to the panel. We check roof condition and wiring section.

Shade meterPanel photoRangefinder
03 Closed quote

Signed number in writing

Signed document with materials, brands, warranties, schedule, and final price. VAT and any bonuses broken down. No fine print.

Signed PDF10–25 yr warrantiesNo hidden extras
The visit is free No cost, no commitment. If it doesn't fit, it doesn't fit. You keep the report anyway.
Technician, not salesperson Not on commission. If your case doesn't make sense, they say so. We've done it 14 times this year.
Closed quote In writing, signed PDF. The document price is what you pay. No mid-build "extras".