Written from the grid side. If you are viewing property between Zadar and Sibenik, print this and take it with you. Updated September 2026.
Short answer: Estate agents check the land registry. Almost nobody checks the electricity, and it is where the expensive surprises live. Before you sign, establish six things: whose name the meter is in, whether the supply is single or three phase, what the connection capacity is, whether the building is legalised, whether anything is owed on the account, and how far the property sits from its transformer station. All six are checkable before contracts, and any one of them can cost you thousands afterwards.
1. Whose name is on the electricity meter
This sounds trivial and it is the most common problem we meet. On older Dalmatian property the meter is frequently still registered to a grandparent, sometimes to someone who died decades ago, occasionally to a person no living relative can identify. Transferring the contract then requires inheritance documentation that nobody has prepared.
Until the contract is in your name, you cannot apply for solar, you cannot change the connection, and in some cases you cannot even change supplier. Ask to see a recent bill, and check the name on it against the seller. If they do not match, ask why before you agree a price.
2. Single phase or three phase
A great many older houses on this coast have a single phase supply. It runs lights, a fridge and a television perfectly well. It does not comfortably run an electric cooker, a heat pump, an EV charger, several air conditioners, or a solar system above a modest size.
Upgrading to three phase is a formal procedure with HEP ODS, it carries a connection fee proportional to the capacity increase, and it can require work on the connection itself. It is entirely doable and we do it routinely, but it is a cost and a delay that belongs in your purchase calculation rather than in a surprise three months after completion. You can usually tell by looking in the meter cabinet: one live conductor and one meter disc or display for a single phase supply, three lives for three phase.
3. The connection capacity
Separate from phases, every connection has a contracted capacity in kW, shown in your documentation and reflected in the main fuse. Many holiday houses are on a small capacity that was adequate when the house had a fridge and two lights.
If you plan a pool, air conditioning throughout, an induction hob, an EV charger or a solar system, check the figure. Raising it is a paid procedure. Getting the number now takes one phone call, and it changes what your renovation will really cost.
4. Whether the building is legalised
This is the one that stops projects dead. If the house, or the extension that was added in 1987, does not have a use permit, a building permit or a legalisation decision, then no new electricity arrangement can be made for it: no solar, no capacity increase, sometimes not even a straightforward contract transfer.
Legalisation is a separate legal process with its own cost and timeline, and it can be complicated for buildings in protected zones or too close to the coastline. Ask for the documentation explicitly. A seller who becomes vague at this question has told you the answer.
5. Outstanding debt on the account
Unpaid electricity debt attaches to the account, and disentangling it at the point of transfer is unpleasant and slow. Ask for a statement showing the account is clear, and make it a condition. This is ordinary practice and no reasonable seller objects.
6. How far you are from the transformer station
This is the one an estate agent will not think to mention, and it is the one we would check first. Properties at the end of a long low voltage line, common in inland villages, on the islands and in scattered settlements above the coast, live with weaker voltage, more sensitivity to summer load, and a network that has less room to absorb power injected back into it.
Practically, that can mean HEP ODS approving a smaller solar system than you wanted, or requiring export limitation. It is not a reason not to buy a house. It is a reason to know before you plan a 15 kWp system and a heat pump. If you tell us the address, we will usually be able to say something useful about it, because the owner of this company works on that network for a living.
A short checklist to take with you
| Check | How | If the answer is bad |
|---|---|---|
| Name on the meter | Ask to see a recent bill | Make transfer a condition of sale |
| Phases | Look in the meter cabinet | Budget for a three phase upgrade |
| Connection capacity in kW | Documentation or main fuse rating | Budget for an increase |
| Legalisation | Ask for the permit or legalisation decision | Do not assume it can be fixed quickly |
| Account in credit | Ask for a statement | Condition of sale |
| Distance to transformer | Ask us, or an installer who knows the local network | Plan a smaller system or storage |
And one thing you can safely ignore
The orientation of the roof. Owners regularly walk away from a house because the roof does not face due south. On this latitude south east and south west lose only a few per cent, an east west split on a flat roof loses around 15 per cent, and a garage, an outbuilding or a ground mounted array behind a wall solves most of the rest. Shading from a large pine or a neighbouring building matters far more, and that is worth looking at while you are standing there.
Thinking about solar on your Croatian property?
Send photos of the roof and the fuse board and we will tell you what fits, what it produces and what it costs. In English, within 24 hours.
Ask SOENSOFrequently asked questions
What should I check about electricity before buying a house in Croatia?
Whose name the meter contract is in, whether the supply is single or three phase, the contracted connection capacity in kW, whether the building is legalised, whether the account carries debt, and how far the property is from its transformer station.
Can I install solar on a house that is not legalised?
In practice no. A new electricity arrangement, including a solar connection, requires the building to be legal. Legalisation is a separate process that must come first.
How do I know if a Croatian house has three phase electricity?
Look in the meter cabinet. A single phase supply has one live conductor into the meter, a three phase supply has three. The documentation and the main fuse rating confirm the contracted capacity.
Does a north facing or east west roof rule out solar in Croatia?
No. South east and south west lose only a few per cent at this latitude and an east west split on a flat roof loses around 15 per cent. Shading from trees or neighbouring buildings matters considerably more than orientation.
