Germany has 139 boat fuel stations, and Dalbi brings them together on one map — nationwide, offline on the device, with a filter by fuel type and federal state. Diesel at almost every one, Super E5 at most, HVO100 at a handful of marinas so far. Opening hours and phone number wherever the operator has entered them in OpenStreetMap.

Anyone planning a weekend charter on the Mosel or working their way across the Mecklenburg lake district by houseboat knows the problem. The nearest boat fuel station isn’t where the road petrol stations are. On top of that, the mobile signal wavers in the middle of the water. We have compiled Germany’s full inventory once and for all — with supply density per federal state, the current state of HVO100, and a safety checklist before the first refuelling of the season.

Here is what you’ll take away in the next ten minutes: the distribution of the 139 stations and which fuels you’ll find at German boat fuel stations. Plus the HVO100 marinas known so far, a safety checklist before the first refuelling of the season, and answers to the most common questions — from the reserve-canister rule to Sunday opening.

Key Takeaways

139 boat fuel stations in Germany, all offline in Dalbi.

Mecklenburg-Western Pomerania (36), Schleswig-Holstein (24) and Brandenburg (20) lead supply density on the water.

Diesel is the standard fuel; HVO100 is available at at least five marinas in 2026 — Lake Constance, Berlin-Spandau and the Mosel.

Opening hours are seasonal — between September and October many smaller docks close.

Data source: OpenStreetMap and operator information; status May 2026.

What is a boat fuel station?

A boat fuel station is a water-side fuelling facility for sport boats and motor yachts. It sits right at the dock, and the boat refuels while moored — unlike a road petrol station, where you have to trailer the boat first. In Germany these come in essentially three classes of equipment: fixed fuel pumps at marinas, compact fuelling units at waterway rest stops, and mobile fuel drums in the harbour master’s hands.

Commercial shipping talks about “bunkering points” and thinks in tonnes. The recreational boater looks for a “boat fuel station” or “water fuelling station” — that’s the term Google sees and the one Dalbi indexes in search. Between the two worlds lie tank sizes of 100,000 litres and the character of a supply pump.

Common fuels at German boat fuel stations:

Diesel — as at the road petrol station, the standard fuel
Super E5 — for outboards and older petrol engines
HVO100 — a low-carbon diesel, at few marinas so far
GTL — a synthetic diesel, very rare
Two-stroke mix — almost nowhere anymore; unusual since around 2010

In search, Dalbi separates the three station types — mooring, canoe landing, boat fuel station — from one another, because the search intent differs. Anyone wanting to refuel with diesel doesn’t want to see a canoe put-in.

The 139 boat fuel stations — distribution by federal state

Supply density varies regionally. Where the WSV waterway network is dense and the boating grounds are large, you also find the most boat fuel stations. Mecklenburg-Western Pomerania (36), Schleswig-Holstein (24) and Brandenburg (20) lead — the four northern federal states (including Lower Saxony) account for 93 of 139 stations, around 67 percent of the inventory.

Distribution at a glance (our own count from the Dalbi dataset, status May 2026):

Mecklenburg-Western Pomerania — 36 stations. The densest boat fuel station network in Germany. Marina Wesenberg, Yachthafen Rechlin, Marina Plau am See, Marina Eldenburg in Waren — mostly as a diesel-and-Super combination.
Schleswig-Holstein — 24 stations along the Baltic coast and the Nord-Ostsee-Kanal, a mixed picture with larger stations such as the bunkering station at Laboe on the Kieler Förde.
Brandenburg — 20 stations along the Havel, Spree and Dahme. Marina Niederhavel in Brandenburg an der Havel, plus several stations in the Berlin-Spandau area and on the Müritz-Elde-Wasserstraße.
Lower Saxony — 13 stations on the Weser, the Mittellandkanal and the Ems, with facilities for charter houseboats and larger yachts.
North Rhine-Westphalia — 9 stations on the Rhine and the Mittellandkanal, with bunker boats near Minden and a connection to the Netherlands.
Bavaria — 7 stations on the Main, the Danube and at the foothill lakes, including the MSG Würzburg bunkering station and the Regensburg bunker boat.
Baden-Württemberg — 7 stations on Lake Constance and the Neckar; three of the HVO100 marinas known so far sit on Lake Constance.
Rheinland-Pfalz — 7 stations on the Mosel, with Marina Winningen, Boote Polch and smaller docks around Bernkastel-Kues.
Berlin — 6 stations in the compact corridor between Wannsee and Müggelsee, including HVO100 at Marina Lanke in Spandau.
Hesse — 5 stations, mainly on the Main and the Rhine.
Hamburg — 3 stations on the Elbe and the Alster.
Bremen, Saxony-Anhalt — one station each (the water fuelling station at Bremerhaven, a site on the Saale near Halle).

There are gaps: the Saarland, Saxony and Thuringia currently have no boat fuel station in the dataset. Anyone boating there plans with a reserve canister or a fixed bunker stop in a neighbouring federal state. The full distribution across all three station types — mooring, canoe landing, boat fuel station — is shown by stations by federal state on the home page.

Map: finding a boat fuel station nearby

Dalbi opens search directly on the map. One tap on the fuel station symbol, a second on the federal-state filter, a third on the detail view — three filters, three seconds, a different map. The detail shows what OpenStreetMap and the operator have entered: fuel type, opening hours, and phone number. Anyone wanting to look at this on dry land before casting off loads the app once — after that, everything runs without a signal.

Diesel, Super, HVO100 — which fuels at boat fuel stations?

Diesel dominates. Of the 55 stations for which OpenStreetMap holds a fuel entry, around 70 percent carry diesel, many exclusively. The other 84 stations aren’t necessarily without diesel — the entry is simply missing. Super E5 is added at most marinas where outboards or older petrol engines are expected. The Mecklenburg lake district is exemplary here: almost every station lists diesel and Super.

HVO100 — the 2026 angle

HVO100 is a low-carbon diesel made from plant-based feedstock, approved at German road petrol stations since the spring of 2024. According to the HVO100 fuel station map, more than 2,380 road petrol stations offer the fuel in 2026 — one in six. On the water, the picture is much thinner.

Boat fuel stations with HVO100 in Germany (status May 2026, not exhaustive):

Lake Constance — Marina Ultramarin Kressbronn, Konstanz-Wallhausen, Marina Bodman. Three stations in a network (see ADAC Skipper).
Berlin-Spandau — Bootstankstelle Berlin Spandau at Marina Lanke.
Mosel — Boote Polch between Traben-Trarbach and Enkirch, at river kilometre 105.9. Season April to October.
Further locations are planned; an additional station has been announced in Konstanz. If you know an HVO source missing here, write to hello@dalbi.app.

The German Motor Yacht Association is actively promoting renewable diesel. A DMYV statement puts the CO₂ saving at up to 90 percent compared with conventional diesel. Boats without a manufacturer approval, however, stay with the familiar fuel — a call to the engine supplier is worthwhile before the first HVO refuelling.

What you’ll find less often

GTL turns up at a few places as a premium variant. The two-stroke mix has effectively disappeared — anyone running an old two-stroke boat mixes their own at 1:50 or 1:100. Unleaded 95 / Super E5 covers almost all outboard requirements today; E10 is not approved for many boat engines and isn’t in the range at most boat fuel stations anyway.

Where the data comes from

Data on boat fuel stations is scattered across Germany — there is no central register. Dalbi draws on two sources: OpenStreetMap, the open map that volunteers worldwide contribute to, and direct feedback from operators and boaters. Both end up running through OpenStreetMap, because corrections stay publicly traceable that way.

From this inventory you get: 55 stations with a fuel entry, 37 with opening hours, and the rest falling back on phone number and an approach sketch. Dalbi currently provides no photo material for individual boat fuel stations — anyone wanting to see the berth before landing goes via the OpenStreetMap map or calls the harbour master.

The full dataset lies open. It is available for download at dalbi.app/data/gelbe-welle.json. Anyone with a tip — a closed station, a new HVO pump, a wrong phone number — writes to hello@dalbi.app. The correction reaches every user’s device with the next update.

What Dalbi deliberately doesn’t do: same-day prices. Boat diesel swings sharply with the season, and there is no open source that keeps up daily for all 139 stations. Anyone wanting the price before setting out calls. The number is in the detail view.

Refuelling safely — what boaters need to bear in mind

Refuelling at the dock is more routine than the trailer stop at the road petrol station, but it has its own risks. Petrol is more volatile than diesel, and an evaporated mix in a closed bilge is an explosion hazard. The DMYV has an official checklist for this. The short version fits into five points:

Engine and electrical consumers off. No sparks for the entire refuelling time.
Pause radio operation. VHF transmitter off as well, no radio chatter about the fuel receipt.
Ground the tank opening. Hold the nozzle against the filler neck as you insert it, to avoid a static charge.
Force-ventilate the bilge. Four to five minutes of the blower before restarting.
Secure the reserve canister well. A maximum of 30 litres inside the boat under the inland waterway regulations; larger quantities must be stored outside the living area.

Anyone boating with a rented charter boat checks the fuel gauge and the range before casting off. A 1,000-litre diesel tank comfortably lasts a week on the Mecklenburg lake district — on the Mosel it can be enough if a full bunker stop is planned in. Check Pegel and closure notices briefly on elwis.de before setting out — a closed lock quickly turns a range plan into a range problem.

Mosel, Müritz, Spree — the fuelling reality of the boating grounds

Three boating grounds, three fuelling profiles.

Mosel. Anyone running from Trier towards Koblenz plans in Marina Winningen. The station is one of the larger ones on the lower Mosel — a stock of 20,000 litres each of Super and diesel according to the operator. Further upstream, between Traben-Trarbach and Enkirch, sits Boote Polch with diesel and Super. With 35 moorings, Bernkastel-Kues is the centre, but has no large bunkering operation of its own. Winningen is the central supply point for the stretch. Plan a Mosel weekend with Dalbi — fuel stops included.

Mecklenburg lake district / Müritz. Supply is densest here. On the stretch of the Müritz-Elde-Wasserstraße between Dömitz and Rechlin alone, there are more than ten stations with diesel or diesel and Super. Marina Wesenberg, Marina Plau am See, Marina Eldenburg in Waren — all open seasonally from about April to October, reachable by phone over the season. Charter crews refuel once mid-trip on a week’s tour and have enough that way. The Müritz charter covers the fuel stops as well.

Spreewald and Spree. In the narrower Spreewald — Lübben, Schlepzig, Lübbenau — boat fuel stations are rare, because motorboats may only run there with restrictions. Anyone travelling the Spreewald by canoe needs none. As soon as the route reaches out onto the Spree, the Dahme or the Spree-Oder-Wasserstraße, that changes: Marina Beeskow, Köpenick and Spandau form the supply corridor between Berlin and southern Brandenburg.

What all three boating grounds have in common: opening hours shift with the season. A station open daily in July often runs only at weekends in October. Call the harbour master before casting off — the phone number is held in Dalbi, provided the operator has maintained it in OpenStreetMap.

FAQ on boat fuel stations in Germany

How many boat fuel stations are there in Germany?

139 boat fuel stations are listed in Dalbi (status May 2026). The figure covers fixed water-side fuel pumps, marina fuel stations and waterway rest stops with a fuelling service. It fluctuates slightly over the year through seasonal closures or new openings.

Where do I find boat diesel on Sundays?

24/7 boat fuel stations are rare. About 37 of the 139 stations have opening hours entered in OpenStreetMap; of those, only a single-digit share is open around the clock. Most stations — even the larger ones like Bootstankstelle Berlin Spandau — have daytime opening hours, often 09:00 to 19:00 in season. When in doubt: call the harbour master — the phone number is in the Dalbi detail view.

Can I buy diesel for my boat at a road petrol station?

Yes — with a reserve canister. The inland waterway regulations allow up to 30 litres inside the boat; larger quantities must be stored outside the living area. Road diesel matches the usual boat diesel. With HVO100, always check the manufacturer approval for the boat engine first.

What does boat diesel cost compared with the road petrol station?

Boat diesel is often 10 to 20 cents above the road price — because of logistics on the water, smaller quantities and seasonal operation. Marinas with club membership offer discounts in part, often 2 to 3 percent from 300 to 400 litres. Prices swing sharply; a call before setting out is worthwhile.

Which apps show boat fuel stations offline?

Dalbi lists all 139 boat fuel stations offline on the device, with a filter by fuel type and federal state, nationwide. The “Hafenführer für Hausboote” as an app subscription (25 euros per year, via the Alp app) covers only the Mecklenburg lake district. The printed BOOTE magazine directory appears every two years and is not searchable. More in the answer in the FAQ on dalbi.app.

Where is there HVO100 for boats?

As of May 2026: at least five marinas in Germany — three on Lake Constance (Ultramarin Kressbronn, Konstanz-Wallhausen, Marina Bodman), Bootstankstelle Berlin Spandau at Marina Lanke and Boote Polch on the lower Mosel. The list is not exhaustive; further locations are planned. For boaters, HVO100 remains a regional offering that is developing quickly.

Conclusion

Germany’s boat fuel station landscape is not flat. 139 stations are spread unevenly across the country — Mecklenburg-Western Pomerania (36) densest, Schleswig-Holstein (24) and Brandenburg (20) in the middle, Lake Constance well supplied, the Saarland and Saxony with no entry. Diesel is the standard fuel; Super E5 is added almost everywhere; HVO100 is the exception.

Anyone planning a Mosel charter or a Müritz week has every boat fuel station offline on the device before casting off — with fuel type and phone number, wherever the operator has entered them. The signal on the water wavers; the map doesn’t.

Load it from the App Store — Dalbi for iPhone, free. Dalbi Pro with all station details: try it free for 7 days, then €4.99 per year or €19.99 once. Coming soon to Google Play.

Sources and rights to the list

The count of the 139 boat fuel stations is based on the Dalbi dataset, which comes from OpenStreetMap (© OpenStreetMap contributors, ODbL v1.0). The distribution per federal state is our own count on the basis of this inventory. Statements about HVO100 marinas rest on public announcements by the named marinas, the German Motor Yacht Association (DMYV) and the ADAC Skipper editorial team. Pegel and closure information is available via elwis.de from the Federal Waterways and Shipping Administration (WSV).

Dalbi has no commercial or contractual relationship with the German Tourism Association, the DMYV, the ADAC or the named marinas. The data on boat fuel stations is sourced via OpenStreetMap, not via external third-party lists.

Boat fuel stations in Germany 2026: 139 stations offline