Buy solar panels if you want to own the system and take the upside, but also the wear and risk. Just want a predictable bill? An energy subscription fits.

The purchase price is the smallest part. Over 15 years the cost is installation, service, repairs and above all electricity. It's the biggest, worst at the end.

The right size for a home battery is measured in kilowatt-hours and depends on what you want it to do. Bigger isn't always better; it comes from an analysis.

The spot price is electricity's market price hour by hour, set on the Nord Pool exchange. Every afternoon, tomorrow's 24 prices are set by supply and demand.

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.

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.

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.

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.

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.

Choosing between a fixed and variable electricity contract is two tracks on the same rail. Both lead where the power company decides. There's a third way.

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.

A normal-sized house can save 8,000 to 14,000 kr a year with solar and a battery, but the outcome depends on factors many guides miss. We spell out which.

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.

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 can earn from support services.

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.

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.