What do 2026's energy prices mean for the summer 2027 AC bill in a Spanish rental?

Each air conditioner in a Spanish holiday rental can keep about €192 to €262 of electricity off next summer's bill, depending on what you pay per kWh. The kilowatt hours behind that figure, 769 per unit per season, stay the same whatever the market does. Setting limits on the AC is the part of the summer 2027 bill that does not depend on the price of gas.

What changed in the energy market in 2026

Spanish wholesale electricity cleared at €166,60/MWh for Saturday 3 October 2026, against €93,25/MWh on the same day of 2025. By then the price had been above €100/MWh on 40 days this year, levels last seen in 2022.

The driver is gas. Shipping through the Strait of Hormuz, which normally carries around 20% of global LNG flows, has run far below normal since the conflict with Iran began, even after the April ceasefire. After the strike on Qatar's Ras Laffan LNG complex in March, the Dutch TTF gas benchmark rose above €62,5/MWh, its highest in more than three years.

Spain is better placed than most of Europe. On 29 September the Ministry for the Ecological Transition (MITECO) said Spanish electricity prices have been less affected thanks to the growth of renewables, and capped the next rise in the regulated household gas tariff at about 15%, against a projected 45%. Spanish inflation reached 4,9% in September, the highest since February 2023, driven mainly by vehicle fuel.

What the market expects for summer 2027

Futures give the market's best guess. On OMIP, the Iberian power derivatives exchange, Spanish baseload electricity for July to September 2027 carried a reference price of €81,84/MWh on 22 September 2026. The full year 2027 stood at €85,00/MWh.

Both sit well below today's spot price, which is good news for next season's budget. A futures price is the market's expectation and moves every trading session; a hot summer can move it again. The share of the AC bill you can plan with certainty is the kilowatt hours.

Count kilowatt hours first, then apply your own price

You can run this sum tonight with last August's invoice, with or without us.

• One 1,2 kW split unit, 15 hours a day, from 1 June to 30 September (122 days), draws 2.196 kWh.
• The narveo.eu calculator treats 35% of that as recoverable: cooling below a comfortable temperature, and rooms left cooling with nobody in them.
• That share is 769 kWh per unit per season. Multiply it by the price per kWh on your bill.

• €0,25/kWh, the calculator's base: €192 per unit.
• €0,2669/kWh, Eurostat's Spanish household price for the second half of 2025, all taxes included: €205 per unit.
• €0,3403/kWh, the Eurostat price plus this year's wholesale rise, passed through in full: €262 per unit.

Your contract decides which line applies. An indexed tariff tracks the wholesale market; a fixed-price contract holds until it renews. Your own bill is the right number to use, and the savings calculator now lets you enter it.

The lever that does not depend on the market

A guest walks in from a 33°C afternoon, sees 16°C on the remote and presses it. That is a reasonable thing to do on holiday: the guest pays a fixed price for the stay and never sees a kilowatt hour. A split unit set to 16°C can use up to 70% more energy than the same unit at 24°C. A room left cooling while everyone is at the beach draws its full load for nobody.

You can settle both patterns once, before the season starts, and neither depends on the price of gas. A lower limit of 22°C keeps every room inside the recognised comfort band of roughly 22–26°C. A timer switches the unit off after a set time, so an empty afternoon stops drawing power.

The kilowatt hours saved are the same in a cheap year and an expensive one. In an expensive year, each one is worth more. A holiday rental operator in Ibiza built Narveo after years of watching guests leave the AC running at 16°C all day, and the founder still uses it in his own properties.

How the Narveo Smart AC Remote sets those limits

The Narveo Smart AC Remote replaces the remote that came with your split unit. It ships preset to a recommended 22–25°C band, guests set any temperature inside it, and a timer switches the unit off after the time you choose.

Set up in under 2 minutes. No app. No WiFi. No installation. €69 per unit, and it pays for itself in one summer, within 30–75 days in a typical season.

On the calculator's €0,25/kWh, the published saving is €190–450 per AC unit per season: 20 units = €3.800–9.000. Coastal, cooling-only properties sit near the floor of that range and year-round inland properties near the top. With wholesale prices where they are, €0,25/kWh is a conservative base, which is why the calculator now takes your own price per kWh.

Frequently asked questions

When Narveo is not the right solution

Narveo works with split air conditioners that guests operate by infrared remote, room by room. It does not control ducted central air or hotels run from a building management system. Properties in cool climates, or with little AC use, will recover less than the range suggests. On a fixed-price electricity contract, this year's wholesale rise reaches your bill only when the contract renews, so the lower tariff scenarios above are the ones to use.