Up to 20% off your electricity bill

Save up to 20%
on your electricity bill

We look at your actual bill: potencia contratada (contracted power), time bands, grid charges and the tariff you are on. We tell you whether you are paying too much and what is worth changing. No building work and no changes to your installation.

Typical saving: between 15% and 20%

Includes

Analysis of your bill

Switching supplier

Adjusting your contracted power

Up to 20% off your electricity bill

Save up to 20%
on your electricity bill

We look at your actual bill: potencia contratada (contracted power), time bands, grid charges and the tariff you are on. We tell you whether you are paying too much and what is worth changing. No building work and no changes to your installation.

Typical saving: between 15% and 20%

Includes

Analysis of your bill

Switching supplier

Adjusting your contracted power

Resources

English

Detached house

55,798 kWh generated since 2024 in El Herrojo

Town

El Herrojo, Marbella

Year

2024

Type of installation

Solar + battery

Annual saving

€5,580

22.5 kWp on the roof with fifteen power optimisers and a battery, running since February 2024. It has generated steadily from its first year: 55,798 kWh in total, around 22,319 kWh a year.

The fifteen optimisers are not a catalogue extra. On a roof with several orientations and shade that moves through the day, they let each module produce what its position allows instead of being held back by the most shaded panel in its string.

The client came back for more

It is the best signal an installation can give: after watching how the system behaved for months, the owners decided to extend the battery to 15 kWh. Nobody extends a system that is not working for them.

Modern home with rooftop solar panels generating clean energy at sunset

Installation in El Herrojo, Marbella

What €5,580 a year means

Based on real measured generation and the price a domestic client pays today, the property stops paying around €5,580 every year. This is not a sales projection: it comes from the kWh the system has actually generated since 2024.

Paperwork included

The installation certificate was registered with the Junta de Andalucía, the regional government. The paperwork is part of the project and we handle it from start to finish, so the client does not have to chase anyone.

Why we single it out

It brings together everything we stand for: sizing based on real consumption, optimisers where they are needed, storage to shift energy into the evening, and a client who, with the data in front of them, chose to invest more.

Keep reading

Family home built for energy-efficient living
1,426 kWh per kWp and two faults fixed without setting foot in the house

Solar + battery

Detached house

·

Guadalmina, San Pedro

14.4 kWh

Backup during a power cut

Family home built for energy-efficient living
1,426 kWh per kWp and two faults fixed without setting foot in the house

Solar + battery

Detached house

·

Guadalmina, San Pedro

14.4 kWh

Backup during a power cut

Family home built for energy-efficient living
1,426 kWh per kWp and two faults fixed without setting foot in the house

Solar + battery

Detached house

·

Guadalmina, San Pedro

FREE survey

Work out what your home could save

Find out what your home is capable of. We show you the savings available, your energy independence and how your system would perform, in a quick survey with no obligation.

Under a minute. No sales call.

Sun System

Rated 5.0 on Google · 22 reviews

Energy tailored
to homes like yours

Properly sized systems, with brand-name equipment and a real warranty. No surprises on the bill and no promises that go unkept.

Energy tailored
to homes like yours

Properly sized systems, with brand-name equipment and a real warranty. No surprises on the bill and no promises that go unkept.

Sun System

Sun System

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©2026 Made by Works230

Sun System is a solar installation company based in Estepona. We design, install and maintain photovoltaic systems, batteries and electric car chargers in Marbella, Estepona and across the Costa del Sol. We work with leading brands in the sector and every project is sized around the home's real consumption, with a warranty on both the equipment and the installation. All rights reserved.

Sun System

Rated 5.0 on Google · 22 reviews