Bornholm Energy Island
Two wind farm areas on Rønne Banke, approximately 15 km south-southwest of Bornholm in the Baltic Sea.
Status
Early Developmentlifecycle stage
ProspectiveHafrok completion outlook
Ownership
—
Location
DenmarkBaltic Sea
Technology
Capacity
3,000 MW ◆
Turbines
—
Foundation
—
Site & conditions
Site rights
State-designated Bornholm Energy Island (3 GW) ∴
Water depth
22–57 m ≈
Distance from shore
15 km ◇
Wind speed
10.0 m/s @ 150 m ≈
Revenue & grid
Offtake
Other ◆
Grid
No agreement ◆
Connection
Two HVDC links: (1) Bornholm to Zealand (1.2 GW, 525 kV, ~217 … ◆
Schedule
FID
Not taken
COD · guidance
2035 ⌁
COD · Hafrok
2035 expected
Delivery outlook modelled by Hafrok · calibrated on delivered projects
2035
expected year of commercial operation
Chance of delivery
≈55%
estimated chance this project reaches commercial operation
Early Development projects complete ≈61% of the time on Hafrok's record. This one sits well below that: a very large build and technical complexity. A secured offtake contract helps only slightly.
COD outlook
If it completes, when — Hafrok’s probability by year (teal) · the developer’s COD guidance, by date stated (ink)
| Year | Probability |
|---|---|
| 2034 | 14.1% |
| 2035 (expected) | 28.0% |
| 2036 | 22.7% |
| 2037 | 14.6% |
| 2038 | 8.7% |
| 2039 | 5.1% |
| 2040 | 3.1% |
| 2041 | 1.8% |
| 2042 | 1.1% |
| 2043 | 0.7% |
| Stated | Announced COD |
|---|---|
| 2026-06-16 | 2033 |
| 2026-07-28 | 2035 |
How Hafrok got this date
1
No dated milestone yet
Nothing is consented or financed with a date, so the estimate starts from today (
2026), adds the time similar projects (in established offshore-wind markets) took from consent to operation, plus an allowance for obtaining consent.2
Earliest credible date
Typical consent-to-operation time plus allowances means commercial operation before
2033 is not credible.3
Still needs an offtake award: DK-NORDSOEN-SYD
The project has no offtake contract yet. The next visible auction is around
2028 Q4; winners typically reach final investment decision about 2 years after an award (2030 Q4), then build time on top gives 2033 Q4. The milestone timing is already later than that, so it stands.4
Result
Expected commercial operation
2035, likely range 2035–2041 (the middle half of outcomes for similar projects). With no milestone to build from, the earliest credible date is the estimate, with a deliberately wide range.5
Year-by-year chart
The bars spread that estimate across years using how similar projects actually slipped against their dates — more often late than early, which is why the bars lean right.
6
Chance of delivery — separate from timing
Start from the share of Early Development projects that went on to complete — ≈61%, measured on Hafrok's record of delivered and abandoned projects, with an allowance held back where that record cannot yet speak (projects still unresolved, changed market conditions). About three in four early-stage projects with a final outcome went on to operate — a record from an easier era. Most of today's early pipeline is still unresolved, so the estimate discounts it. Then adjust for this project's own evidence — offtake, market, size, technical complexity — to ≈55%, which rates it
Prospective on Hafrok's four-step delivery scale (Delivering · Expected · Prospective · Fragile).Project timeline verified milestones only — each date carries its provenance mark
Dashed tick marks today (9 Sep 2026). The ▲ below the spine is the developer-announced COD.
Announced COD: slipped so far +2.0 yr (first announced 2033) · the full guidance history is in the delivery chart above
Revenue & offtake route to market — open
No offtake secured — route to market open
Joint Danish-German cost-sharing framework for offshore wind support agreed January 2026. Energistyrelsen responsible for offshore wind farm tender; no tender launched as of June 2026. No strike price or offtake contract in place. EU PCI status with EUR 645m CEF grant. ◇
The routes describe what exists in this market — not a prediction of which the project will take. Timing math for the auction gate lives in the delivery outlook above.
Installation how the build is going · from satellite counts and Hafrok’s registers
Installation not started
nothing to count yet: the satellite tracker begins when offshore construction does
Installation · on record
StageEarly Development
Offshore constructionnot started
Expected start of operation2035
Construction ports
PortRønne ◇
Grid connection
from Hafrok’s substation, converter and cable registers
Offshore platforms · 0
HVDC systemBornholm Energy Island — Bornholm Converter 1 (AC/DC)·2000 MW · ±525 kV · ordered, expected 2033
HVDC systemBornholm Energy Island — Bornholm Converter 2 (AC/DC)·1200 MW · ±525 kV · ordered, expected 2033
HVDC systemBornholm Energy Island — Zealand Converter (Lindehøj)·1200 MW · ±525 kV · ordered, expected 2033
HVDC systemBornholm Energy Island — Germany Converter (Kemnitz/Rappenhagen)·2000 MW · ±525 kV · ordered, expected 2034
Export & onshore
Export cableBornholm Energy Island — Germany Cable (50Hertz)·HVDC subsea · NKT · ordered · to Kemnitz / Rappenhagen, Vorpommern-Greifswald
Export cableBornholm Energy Island — Zealand Cable (Denmark)·HVDC subsea · 217 km · NKT · ordered · to Lindehøj, Zealand
Onshore connectionKemnitz Converter Station (Bornholm Energy Island)·525 DC / 380 AC kV · planning
Converter supplierSiemens Energy·Bornholm Energy Island — Bornholm Converter 1 (AC/DC) · TBD · for Energinet
Converter supplierSiemens Energy·Bornholm Energy Island — Bornholm Converter 2 (AC/DC) · TBD · for Energinet
Converter supplierSiemens Energy·Bornholm Energy Island — Zealand Converter (Lindehøj) · N/A · for Energinet
Converter supplierSiemens Energy·Bornholm Energy Island — Germany Converter (Kemnitz/Rappenhagen) · N/A · for 50Hertz
Grid connection · ready in time?
when each part of the grid connection is due, against the start date the developer states (black line) and the year Hafrok expects (teal band) · a bar spans the whole year, quarter or month the source gives
installed or in serviceexpected deliveryearlier date that was later moved
Sources & verification
4/14 fields verified · rests on 9 sources (4 primary) · ◆ 3 documents held
◆Verified≈Modelled◇Sourced∴Inferred⌁Convention○Unverified∅No source·Derived
Numbers are stable citation ids — grouped by source class, so they are not consecutive.
Regulator2
[1]
European Commission (DG Energy)2026-01-26◆ Energy Highways: Germany and Denmark agr…
“Germany and Denmark reached an agreement on the Bornholm Energy Island project, which will link 3 GW of electricity generated offshore to the Danish and German national grids ... a EUR 645 million gra…”
supportsTotal capacityMechanismDetailOfftake history
[3]
Energistyrelsen (Danish Energy Agency)◆ Bornholm Energy Island
“The project will have 3 GW capacity ... turbines will be positioned approximately 15 kilometers from Bornholm coast in the Baltic Sea, specifically south-southwest of the coast of Bornholm ... Power f…”
supportsConsentTotal capacityDistance from shoreCoordinatesport
Operator2
[2]
German Federal Ministry for Economic Affairs and Energy (BMWE)2026-01-26
“Denmark and Germany have concluded a bilateral agreement to invest in the Bornholm Energy Island ... 3 GW of offshore wind electricity ... powering approximately 3 million households ... collaboration…”
supportsTotal capacityStatusConnection point
[4]
NKT (investor announcement)2025-09-03◆ Nkt Awarded The Power Cable Connection B…
“NKT received a contract to deliver 525 kV high-voltage direct current (HVDC) on- and offshore power cable systems connecting the Bornholm Energy Island to Denmark's power grid. Approximately EUR 650 m…”
supportsStatusConnection point
OEM1
[5]
Baltic Wind (trade press, citing Siemens Energy press release)2025-09-15
Press report — cited, not quoted; read it at the source link.
supportsCommercial operationCOD historyStatusConnection point
Auction pipeline1
[9]
Danish Energy Agency (Energistyrelsen)2026
DEA offshore overview — the 6 GW radial programme + 3 GW Bornholm Energy Island toward 2030; North Sea island postponed.
supportsBornholm Energy Island (3 GW)
Trade press3
[6]
Offshore Wind (trade press)2026-01-28
Press report — cited, not quoted; read it at the source link.
supportsStatusConnection point
[7]
[8]