Going fully off-grid on solar power is possible in the Netherlands, but you shouldn’t do it purely to save money. The sticking point is the Dutch winter. In November, December and January combined, your panels generate only about 8 to 10 percent of the yearly yield, and December on its own sits at around 2 percent. To bridge those dark weeks without the grid to fall back on, you have to seriously oversize your panel array and battery bank, and almost always add a backup generator. Reckon on a total investment between 10,000 and 30,000 euros for a real household. So off-grid makes sense if you’re in a spot without an affordable grid connection, or for a holiday home, a tiny house or a garden house. For an ordinary house with a connection at the street, it is almost never the cheapest route.
I’m Fred. Neighbour, handyman, and someone who likes honest numbers. I get this question more and more, mostly since people heard that the Dutch net-metering scheme ends on 1 January 2027. “Fred, I’ll just cut myself off the grid completely then?” Sounds logical. But in this guide I’ll explain plainly how it really works. With the physics, the costs and the pitfalls. So you make your choice based on facts and not on a pretty YouTube video from Portugal.
What does off-grid actually mean?
Off-grid means: no plug to the public electricity grid. No backstop. What you consume has to come from your own panels and batteries, day and night, summer and winter. If your system goes down, you’re in the dark.
That is something completely different from what most people actually want. Let me line up the terms, because salespeople love to muddle them.
On-grid (grid-connected)
Panels feed into the grid, you pull back whenever you want. No battery needed. This is what most houses have.
Hybrid (grid-connected with battery)
You have panels, a home battery and a grid connection. During the day you charge the battery, in the evening you use it, and the grid catches the rest. For most people this is the smart route after 2027.
Backup / emergency power
Grid-connected, but with a battery or inverter that takes over if the grid fails. You’re not independent, you’re just prepared for a power cut.
Off-grid (island)
No grid. Full stop. Generate and store everything yourself, the whole year round.
Nine out of ten people who “want off-grid” actually mean hybrid. They want to use as much of their own power as possible and be less dependent on the energy supplier. That’s a fine goal, and much cheaper. Real off-grid is a discipline of its own.
Why is the Dutch winter the problem?
This is where almost every off-grid story in our country goes wrong. It’s not the technology. It’s the sun that simply isn’t there in winter.
Look at how the yield is spread over the year. Your solar panels deliver the vast majority in the summer half of the year. In the winter months it nearly stops.
| Period | Share of yearly yield (indicative) |
|---|---|
| June (peak month) | ~13-14% |
| November | ~3% |
| December | ~2% |
| January | ~3% |
| Nov + Dec + Jan combined | ~8-10% |
Those numbers aren’t plucked from thin air. Zonneplan, Essent and Weeronline all report that the winter months combined deliver around 8 to 10 percent of the yearly yield, with December as the absolute low point at around 2 percent.
The cause is the number of sun hours. In January 2025, the Netherlands counted roughly 46 to 72 sun hours depending on the region. In August 2024 that was 224 to 259. That’s a difference of roughly four to five times, and that’s before you properly factor in the much shorter day length and the low sun angle.
Concretely: a system that yields 3,500 kWh over a year often gives only 70 to 120 kWh per month in December and January. While your consumption in winter is actually higher (more lights on, more heating, pumps working harder). Exactly when you need the power most, the least comes out of your roof.
This is the honest message that many off-grid articles leave out: in the Netherlands you shouldn’t size a system for the summer, but for the darkest weeks of the year. And that makes it expensive.
The seasonal-storage problem: why you can’t just buy a bigger battery
“Then I’ll just buy a big battery, Fred.” If only it were that simple.
A battery bank bridges the night. A few dark days at most. What a battery does not do is store the summer for the winter. To use July’s power in January, you need seasonal storage, and for households that practically doesn’t exist at an affordable price.
Let’s do the maths. Say you use 8 kWh a day in winter (living frugally). A two-week period with almost no sun, a real “dunkelflaute”, then calls for a good 100 kWh of storage. A decent home battery sits at 5 to 15 kWh. So you’d have to line up seven to twenty batteries side by side to get through that period on battery alone. That’s no longer a battery cabinet, that’s a battery room, and the bill runs into the tens of thousands.
That’s why practically everyone who goes seriously off-grid chooses a combination: a battery for the daily cycle, and a backup generator for the dark weeks. The generator isn’t a luxury, it’s the insurance policy that keeps you from sitting in the dark in January. Only, running on petrol or diesel costs a multiple of grid power per kWh. Essent puts it at up to about four times as expensive. You need it, but you want to switch it on as little as possible.
Step 1 before you buy anything: cut your consumption
This is the most important tip in the whole guide, and it costs almost nothing. Every kWh you don’t consume, you don’t have to generate, store, and oversize for the winter. In an off-grid system, saving on consumption pays back three times over.
Before you order a single panel:
- Measure your real consumption. Put a power meter on your appliances or read off your annual usage. Without numbers you’re sizing blind.
- Cut the big power hogs. Electric heating, an old freezer, a boiler that tops up electrically. Those are the killers for off-grid.
- Don’t heat and cook electrically if you don’t have to. Wood, propane or an efficient source makes a huge difference in the winter months.
- Choose 12V or 24V appliances where possible in a tiny house or holiday home. Saves conversion losses.
- LED everywhere, and root out phantom loads. Standby consumption keeps ticking away on your battery overnight.
An average Dutch household uses around 2,500 to 3,500 kWh per year. Get that down towards half, and your whole off-grid system becomes smaller, cheaper and more reliable. This isn’t a side issue. This is the foundation.
How do you size an off-grid solar system?
An off-grid system has five main components. I’ll go through them with rules of thumb. Note: these are guidelines to get a feel, not a replacement for a calculation on your own situation.
1. Solar panels (the panel array)
Determine your daily consumption in winter and size for that, not for the summer. Rule of thumb: for a real off-grid household you’re quickly at 3,000 to 6,000 Wp of panels. Oversize deliberately, because a panel on a grey December day delivers a fraction of its peak output. Extra panels have become relatively cheap, so better a few too many than too few.
2. MPPT charge controller
This box between the panels and the battery gets the maximum out of your panels (Maximum Power Point Tracking) and protects your battery from overcharging. Always choose MPPT, not a cheap PWM controller, because MPPT harvests more precisely in low light and low temperatures. Size it for the current and voltage of your panel array, with margin.
3. Battery bank (storage in kWh)
Rule of thumb: multiply your daily consumption by 1 to 3 days of autonomy for the daily buffer. For an average household that often works out to 10 to 15 kWh of usable capacity. Choose LiFePO4 (lithium iron phosphate): long lifespan, safe, and you can discharge it deeper than old-fashioned lead-acid. Lead-acid is cheaper to buy but lasts less long, and you can only use half of it.
4. Inverter
Converts the direct current from the battery and panels into 230V alternating current for your ordinary appliances. Size it for your highest simultaneous peak load, not your average. Kettle, microwave and pump on at once pull 3,000 to 5,000 watts easily. Choose a pure sine wave inverter, otherwise sensitive appliances and pumps won’t run smoothly.
5. Backup generator
For a permanently occupied off-grid house in the Netherlands, practically indispensable. It steps in during the dark weeks and charges your battery when the sun lets you down. Choose one that can top up your battery bank via the inverter/charger. See it as an emergency supply, not a daily source.
Here’s a quick indication of how such a system looks per use case:
| Use case | Panels (Wp) | Battery (kWh) | Inverter | Generator |
|---|---|---|---|---|
| Garden house / hobby | 300-800 | 1-3 | small or 12V | not needed |
| Holiday home (weekend) | 1,000-2,500 | 3-8 | 2,000-3,000 W | handy |
| Tiny house (permanent) | 2,000-4,000 | 5-10 | 3,000 W+ | recommended |
| Full household off-grid | 4,000-6,000+ | 10-15+ | 5,000 W+ | practically required |
What does off-grid solar power really cost?
Now the wallet. I’ll give ranges, because your exact price depends on brand, capacity and whether you do it yourself or have it installed. In the Netherlands labour costs are high, reckon on roughly 15 to 20 percent of the total for professional installation.
| Component | Indicative cost |
|---|---|
| Solar panels (panel array) | 1,500 – 5,000 euros |
| MPPT charge controller(s) | 200 – 1,000 euros |
| Battery bank (LiFePO4) | 5,000 – 10,000 euros |
| Inverter (pure sine wave) | 800 – 3,000 euros |
| Backup generator | 500 – 3,000 euros |
| Cabling, mounting, cabinet, protection | 1,000 – 4,000 euros |
| Total full off-grid household | 10,000 – 30,000 euros |
The battery is by far the biggest item, and at the same time the component that has to be replaced after 10 to 15 years. That makes off-grid not just a purchase, but a recurring cost.
And now the honest sanity check on the payback time. An ordinary household uses about 2,500 to 3,500 kWh per year. Even if you price electricity in quite high, you’re talking about a few hundred to just over a thousand euros of power per year. Set an investment of 10,000 to 30,000 euros against that, plus the generator fuel and the battery replacement, and you can already see it: purely financially, off-grid usually doesn’t come out ahead of simply staying on the grid. Not even after 2027.
Because yes, the net-metering scheme ends definitively on 1 January 2027. But scrapped net-metering doesn’t mean your connection becomes worthless. From 2027 to 2030 you still get a statutory feed-in payment of 50 percent of your supplier’s bare electricity rate, and more importantly: the grid stays your free winter backstop. That backstop is precisely what makes off-grid so expensive to recreate yourself. A hybrid setup (panels plus battery plus connection) is the smarter move for almost everyone than actually pulling the plug.
Off-grid permit: are you just allowed to, even in a city?
Let’s be plain about the rules, because they surprise people.
The panels themselves. Putting solar panels flat on your own roof is permit-free in most cases, as long as they lie neatly in the plane and meet the standard conditions. With a listed building, a protected townscape, or a ground-mounted or larger structure in the garden, it can be different. Then you may need an environmental permit. Always check this with your municipality via the Omgevingsloket.
Going off the grid in the city. Here’s the real snag. Within the built-up area, your plot almost always already has a connection. Going off-grid then doesn’t mean you have to apply for something, but that you have to give something up. As long as the connection is there, you pay a standing charge to the grid operator, even if you don’t use it. If you want to be rid of it, you have to have the connection formally removed, and that’s a deliberate, often irreversible step. For a normal home it is rarely wise.
Permanent occupation. For a house you live in permanently, building rules (the Dutch Besluit bouwwerken leefomgeving) and municipal requirements for utility provisions apply. A holiday home, garden house or tiny house often falls under a lighter regime, but the municipality decides whether permanent occupation is even allowed there. So don’t assume “it’s my land, I do what I want”. Call your municipality before you invest.
Who is off-grid solar power actually worth it for?
Enough gloom, because sometimes off-grid is exactly the smartest solution. It comes down to one question: how expensive or impossible is a grid connection at your spot?
A standard new connection for a consumer (up to 3x25A) costs a fixed amount at the grid operator that covers the first 25 metres of cable, in the order of around 1,000 euros. But if your plot lies hundreds of metres from the grid, you pay extra per additional metre of cable, and then the costs run up rapidly into the tens of thousands of euros. At that point the sum tips fully in favour of off-grid.
So off-grid is sensible if:
- There is no affordable grid connection. A remote plot, a piece of land far from the road, a boat or a houseboat in an awkward spot.
- It’s a holiday home or vacation house. Mainly summer use, where winter doesn’t matter and a connection is expensive or unnecessary.
- It’s a garden house, shed or hobby space. Lighting, laptop, charging tools. Small system, no generator needed, perfectly doable.
- It’s a tiny house in a spot without a connection, with an occupant who deliberately lives frugally and accepts the winter limitation.
- Self-sufficiency genuinely has value for you apart from money. Independence, a hobby, a conscious lifestyle. Fine, as long as you know you’re paying for it.
For a run-of-the-mill terraced house with a connection at the street? Then the honest conclusion is: stay on the grid, and go hybrid if you want to be more independent.
Common mistakes with off-grid in the Netherlands
- Sizing for the summer. Classic number one. In July everything works, in December you’re in the dark.
- Forgetting the generator or choosing it too small. Without a backup you won’t survive a Dutch winter on panels and battery alone.
- Not tackling consumption first. You then build a far too large and expensive system to make up for laziness.
- Choosing lead-acid batteries because they seem cheap. Shorter lifespan and you can only use half of them. Really run the numbers against LiFePO4.
- PWM instead of an MPPT charge controller. You throw away yield precisely when there’s little light.
- Keeping on paying a standing charge without knowing it. Going off-grid while the connection is still there is the worst of both worlds.
- Thinking it makes money. Do it for independence or necessity, not to halve your energy bill.
Step-by-step plan: how to go about it
- Determine your goal. Truly off-grid, or actually hybrid? Be honest. For most houses, hybrid is smarter.
- Measure your consumption in kWh per day, separately for summer and winter.
- Bring your consumption down with efficient appliances and non-electric heating/cooking. Repeat step 2.
- Check the alternatives. Request a quote for a grid connection. Expensive or impossible? Then off-grid becomes interesting.
- Size for the winter. Panels 3,000-6,000 Wp, battery 10-15 kWh, MPPT with margin, a pure sine wave inverter for your peak load, and a suitable generator.
- Sort out the permit and building rules. Call the municipality and the Omgevingsloket before you buy.
- Choose quality on the battery and inverter. This is the heart of your system and the most expensive to replace.
- Have the installation inspected or hire a certified installer for the 230V side. Safety is no place to save.
- Monitor the first year. The winter especially teaches you whether your system is right. Adjust as you go.
Want to know first how much you can really save with smart efficiency and the right generation, without immediately pulling the plug on the grid? Then take a look at the Energy Pulveriser. There I work out for you where the big win lies before you sink thousands of euros into batteries.
Frequently asked questions about off-grid solar power in the Netherlands
Can you go fully off-grid on solar power in the Netherlands?
Yes, technically it’s possible, but you have to size the system for the dark winter months and almost always add a backup generator. Reckon on 10,000 to 30,000 euros for a real household. For a spot without an affordable grid connection it makes sense, for an ordinary house with a connection usually not.
Why is winter such a problem for off-grid in the Netherlands?
Because November, December and January combined deliver only about 8 to 10 percent of the yearly yield, and December on its own about 2 percent. Exactly when you consume the most power, the least comes out of your panels. That’s why you need a generator or an enormously oversized system.
Is off-grid financially worthwhile after the net-metering scheme ends in 2027?
Usually not. The net-metering scheme ends on 1 January 2027, but from 2027 to 2030 you still get 50 percent of the bare electricity rate for feed-in, and the grid stays your free winter backstop. Recreating that backstop yourself with batteries and a generator is more expensive than staying on the grid. Hybrid is smarter for most people.
Do I need a permit to go off-grid?
For panels flat on your own roof, often not. For ground mounts, listed buildings or protected townscapes, possibly yes. Going off-grid itself needs no permit, but for permanent occupation, building rules and municipal requirements apply, and having an existing grid connection removed is a separate, deliberate step. Always check with your municipality.
Which battery is best for off-grid: lead-acid or lithium?
For most off-grid systems, LiFePO4 (lithium iron phosphate). Longer lifespan, safer, and you can discharge it deeper. Lead-acid is cheaper to buy but lasts less long, and you only use half of it. Over the whole lifetime, lithium is often more cost-effective.
How many solar panels do I need to live off-grid?
For a fully off-grid household you’re quickly at 3,000 to 6,000 Wp of panels plus 10 to 15 kWh of battery, provided you first bring your consumption down substantially. For a garden house or holiday home much less is needed. Always size for your winter consumption, not for the summer.
Greetings from Fred Schouten
PS: Want to test whether your plan holds up without spending 20 grand right away? Build a small off-grid setup for your garden house or shed first. One panel, a little MPPT controller and a small LiFePO4 battery. You’ll learn more from it in one winter than from ten YouTube videos, and afterwards you’ll know exactly whether that big plan suits you. Starting small is never wasted money.