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Editorial

Energy savings articles.

Plain-language guides for homeowners in Spain.

Sunny Spanish kitchen with Repsol and Naturgy logos and a person reading an electricity bill.
Guides•12 min read

Naturgy vs Repsol: which is cheaper in Spain in 2026?

Naturgy is slightly cheaper on the public electricity prices checked. Repsol can still win if you genuinely use Waylet fuel or charging rewards.

21 September 2026

Illustration of a Spanish nuclear power plant beside a reservoir, seen from a stone terrace with an olive tree.
Sustainability•11 min read

Nuclear power in Spain: what could it mean for your electricity bill?

Spain extended Almaraz to 2030 while solar and wind keep breaking records. We explain what each technology actually does for the grid — and what it can realistically mean for your bill.

8 September 2026

Sunny Spanish terrace overlooking the coast, with the Iberdrola and Gana Energía logos side by side.
Guides•12 min read

Iberdrola vs Gana Energía: which is actually cheaper?

Iberdrola is the giant everyone already has. Gana Energía is the Valencian challenger people switch to when they get tired of giant prices. We compare the kWh rates, the fees and the small print — and say plainly where both are beaten.

1 September 2026

Illustration of a woman on a sunny Spanish terrace beside two cards showing the Iberdrola and Endesa logos.
Guides•12 min read

Iberdrola vs Endesa: how Spain's two giants compare in 2026

Chances are your Spanish home is already on Iberdrola or Endesa. They're the two names that were here long before you were, powering a huge part of Spain between them. We compare them side-by-side.

25 August 2026

Illustration of a woman on a sunny Spanish terrace beside two cards showing the Iberdrola and Octopus Energy logos.
Guides•12 min read

Iberdrola vs Octopus Energy in Spain (2026)

We partner with neither, so here is the honest comparison: tariffs, the power term, indexed plans, coverage, English-language support and what real customers say.

21 August 2026

Illustration of a woman reviewing her Spanish electricity bill on a tablet, on a sunny terrace overlooking the sea.
Savings•12 min read

How to lower your electricity bill in Spain (2026 guide)

Before you unplug anything: what actually makes a Spanish bill expensive, how to check your contracted power, tariff and unused extras — and where the real saving sits.

19 August 2026

Illustration of a woman doing sums at a table in a sunlit Spanish room with a wall-mounted split air-conditioner above her and hills through the doorway.
Savings•10 min read

How much does air-con cost in Spain — and how to pay less

Air-con is why summer is your most expensive month in Spain. What cooling really costs per hour, the 24–26°C sweet spot, and why pre-cooling at cheap midday is the best free trick there is.

11 August 2026

Illustration of a woman wrapped in a blanket on a sofa in a sunlit Spanish living room with an electric heater on the tiled floor beside her.
Life in Spain•11 min read

Why Spanish houses are so cold — and how to heat them

Built to keep summer heat out, not winter heat in. Why 17.5% of people in Spain can't keep warm, what 18°C really means for your health, and the cheapest way to heat — probably already on your wall.

11 August 2026

Illustration of a woman opening the electrical fuse box outside a white Spanish house with palm tree and hills behind.
Life in Spain•13 min read

Setting up electricity in Spain after buying a house

Just got the keys? The cambio de titularidad step by step, the documents you need as a foreigner, how to right-size your contracted power, and what a kWh really costs in 2026.

9 August 2026

Illustration of a pie chart of energy costs on a wooden table with a small pylon, house and sun — dynamic market-indexed electricity prices in Spain.
Guides•11 min read

Dynamic (indexed) electricity contracts in Spain, explained

What a dynamic or indexed tariff really is, where the hourly price comes from, the risks and rewards, and why Spain is a milder ride than Northern Europe.

6 August 2026

Solar panel on a wooden table on a Spanish terrace overlooking the Mediterranean hills and sea under a bright sun.
Sustainability•13 min read

Solar panels in Spain: the complete guide (2026)

Yield, costs, legalisation, the abolished sun tax, balcony solar rules, surplus compensation and subsidies — what home owners in Spain need before buying solar.

6 August 2026

Illustration of a homeowner unlocking a tangle of energy cables and routing power cleanly to a Spanish home.
Savings•10 min read

How to switch energy supplier in Spain in 2026

Switching electricity supplier in Spain is free, takes 5–20 working days, and can save €150–€400 a year. Here's exactly how to do it before the March 2026 tax relief expires.

30 April 2026

Costa Blanca skyline at dusk with a single illuminated villa, evoking the April 2025 Iberian blackout.
Life in Spain•9 min read

One year on from El Apagón: what the April 2025 blackout is still costing every Costa Blanca homeowner

The lights came back. The bill didn't go down. A year after Spain's worst blackout, here's the invisible cost still showing up on every Costa Blanca electricity bill.

28 April 2026

Spanish electricity meter close-up showing kW capacity dial — illustrating potencia contratada.
Savings•9 min read

Why your potencia contratada is probably wrong

The €240 mistake hiding in 9 out of 10 Costa Blanca electricity bills — and what 2026's price changes mean for your bill.

27 April 2026

Woman reading her Spanish electricity bill on a sunny terrace, with a laptop and calculator on the table.
Guides•10 min read

Average electricity price per kWh in Spain (2026) — and what drives your bill

What a kWh actually costs in Spain in 2026 — PVPC, fixed and indexed compared — then a data-driven breakdown of where every euro on your bill goes.

15 April 2026

Spanish factura eléctrica with sections highlighted — CUPS code, potencia contratada, and consumo.
Savings•6 min read

How to read your Spanish electricity bill (without losing your mind)

Spanish bills look like a tax form designed to confuse you. Here is the 6-minute guide that turns four pages of jargon into three numbers that actually matter.

15 April 2026