Learn moreAbout power, heat and smart tech

COP and SCOP measure a heat pump's efficiency. COP is heat per unit of power now, COP 3 gives three parts heat per part power. SCOP is the season average.

Yes, solar panels work in winter, but make much less electricity. The cold isn't the problem, it's the daylight. Solar is judged over the year, not December.

How many solar panels a house needs is measured in kilowatts and depends on the roof, your usage and self-use. The right number comes from an analysis.

If you sell the house, you're not stuck. The subscription is transferable and passes to the next owner as part of the purchase. Or you buy the system out.

Yes, a group of neighbouring homeowners can get an energy subscription together. Installing several homes at once is more efficient and can lower the price.

A new heat pump rarely costs what you think. Often more than you budgeted for. Here we break down the real monthly cost, whatever way you finance the switch.

Behind Elvy is a simple idea: you can have power and heat at home without becoming an energy expert. Here is why we started and what we want to change.

Most homeowners compare electricity providers to cut costs, but the margins are small. The big saving is in how the house produces and uses its energy.

Electricity prices swing more than ever. This guide explains what drives the swings, and what you as a homeowner can do to withstand the next shock.

The best electricity contract of 2026 might not be a contract at all. Here's the choice if you live in a house, and why more people question the question.

Yes. A district-heated house nearly always has water-based heating, so the radiators stay and only the heat source changes. You cancel the supply yourself.

After you submit the form we call you and book a home visit. Then we install. Here's the timeline and where it tends to get stuck along the way.

A fixed or variable electricity price is fundamentally a choice of risk, not of price. How each contract behaves, and who each one suits.

With Elvy's operating guarantee you never pay for a repair during the contract period. Here's what is included and what happens in the cases you worry about.

Air/water is the first choice for most houses in southern Sweden with a waterborne system. Ground-source only pays off for large, energy-hungry houses.

You've switched power companies and read the fine print. The bill stays unpredictable. A contract only sets the markup; spot price and grid fee still move.

How much you save with solar and a battery depends more on self-consumption and control than on the number of panels. We spell out the factors that decide it.

A prosumer both produces and consumes electricity. With solar, a battery and smart control, your house goes from passive consumer to active market player.

In northern Sweden, the winter cold can last up to five months. That puts higher demands on your heating system, and on the numbers. Here's what matters.

Summer is when your decisions still have time to take effect. A checklist to get your home heating ready in time, so the January bill holds no surprises.

A fixed monthly subscription often beats a loan when you swap your heat pump or add solar panels. We explain why, and what Elvy's model means in practice.

Ground-source runs stably at low cost. Air-to-water is cheaper but loses output in the cold. It depends on where you live and whether you have a borehole.

In an electrically heated house, 60-70% goes to heating and hot water. That's where the money is, not the light switch. Eight steps, ranked by impact.

Do you really need a battery with your solar panels? In 2026 the answer is almost always yes. It raises self-consumption and shaves expensive power peaks.

Replacing a heat pump often costs SEK 100,000 to 200,000. Here's what you need to know about cost and installation, plus how to skip the whole investment.

Repair a contained fault on a young pump. Replace one on its way out that draws more electricity every winter. Weigh the repair against the years left.

No, not necessarily. Without waterborne heat an air-to-air pump fits; with it, an air-to-water or ground-source pump. How heat spreads decides which pump.

Who owns the solar panels on your roof depends entirely on your contract. We untangle how buying, leasing and an energy subscription differ in practice.

The electricity price is almost always higher in winter than in summer. The cold drives up consumption, and the price swings most when it's cold.

A home battery without solar panels can pay off, but more slowly and sometimes not at all. Without solar it lives only on the price gap between the hours.

A home battery earns money three ways: moving electricity in time, shaving peaks and renting its speed to Svenska kraftnät as grid support services.

A home battery wears from use, not age. Life is measured in cycles, not years. Own it and you carry the wear yourself. With Elvy, replacement is our job.

Running the home battery on the spot price means charging when power is cheap and using it when it's expensive. A computer runs it, not you.

Elvy earns from the subscription, not from selling a gadget. You pay a fixed fee, Elvy owns the equipment and profits by running it better than you would.

The bill is made up of spot price, markup, grid fee, energy tax and VAT. Only a small part moves with the market, the rest is fixed charges and tax.

Electricity is cheapest when demand is low: at night, at the weekend, when it's windy and in the middle of the day. Cold winter evenings are dearest.

A heat pump normally lasts 10 to 15 years. What wears: the compressor, inverter and fan. Service buys time. Own the pump and the replacement is on you.

A heat pump too big wears out needlessly, one too small needs costly backup heat. Right size follows the house's heat demand, so the analysis comes first.

The panels last for decades, the inverter doesn't. Own it and the replacement is yours. With an energy subscription Elvy carries the wear and the swap.

A south-facing roof gives the most solar over a year, but east and west work nearly as well. Shade from trees matters more than tilt. Most roofs will do.

Own the kit and you take on the capital and the risk. Lease it, as in Elvy's subscription, and Elvy owns the hardware and handles upkeep for a fixed fee.

The price is fixed for fifteen years, moved yearly by the consumer price index, never the spot price. What the market does tonight doesn't touch your bill.

The green deduction doesn't apply in a subscription: Elvy owns the kit and you buy nothing. And it's no loss, there's no investment left to lower.

The 60 öre per kWh tax reduction was scrapped on 1 January 2026. Surplus is now worth what a buyer pays, not a tax credit.

Elvy has no list price. Your monthly fee is set from an energy analysis of the house, fixed for 15 years, adjusted only by CPI, never by the spot price.