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Offshore access firm BGB Group joins Baltica 2 substation build-out

Offshore access firm BGB Group joins Baltica 2 substation build-out

Built World

Framework covers scaffolding and construction support across the 1.5 GW wind farm's four substations, with commissioning targeted for the end of 2027.

Yesterday: BGB Group awarded substation scaffolding framework

Overview

Updated Yesterday

BGB Group, a UK-headquartered offshore access specialist, has won a framework agreement for scaffolding and construction services across Baltica 2's four offshore substations. The deal with developers PGE and Ørsted covers engineered temporary access, cable termination support and commissioning work running through the end of 2027.

Baltica 2 is Poland's largest offshore wind project: 1.5 GW from 107 turbines, about 40 km off the Baltic coast near Ustka, enough to power roughly 2.4 million households. It anchors Poland's shift away from coal, with PGE's estimated budget of about PLN 30 billion, roughly $7.8 billion. BGB delivers the work through its Polish subsidiary in Gdańsk.

Why it matters

If Baltica 2 commissions on time in 2027, Poland gains its largest renewable power plant — 1.5 GW serving about 2.4 million households.

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Key Indicators

1.5 GW
Installed capacity
Maximum generating capacity of the 107-turbine wind farm, Poland's largest offshore project.
107
Wind turbines
Each of the 107 turbines sits on a monopile, with four more monopiles supporting the substations (111 total).
4
Offshore substations
Each completed substation is a 3,500-tonne, five-deck unit that steps up power for export to shore.
3,500 t
Weight per substation
Weight of each completed offshore substation, built by the SEMCO Maritime-PTSC consortium.
~2.4M
Households powered
Roughly 2.4 million households supplied at full output, per the project; Ørsted cites 2.5 million.
PLN 30B
Project budget (PGE estimate)
PGE estimates about PLN 30 billion (~$7.8 billion); Construction Review cites around €4.5 billion (~$4.7 billion).

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Organizations Involved

GG
BGB Group Global Limited
Offshore access and construction services contractor
Awarded framework agreement for Baltica 2 substation construction support

UK-headquartered specialist in offshore scaffolding and engineered temporary access, delivering through a Polish operating company in Gdańsk.
Pacific Gas and Electric Company (PG&E)
Pacific Gas and Electric Company (PG&E)
Polish energy company
50% owner and co-developer of Baltica 2

Poland's largest energy company, historically dominated by coal, building the wind farm with Ørsted.
Ørsted A/S
Ørsted A/S
Danish offshore wind developer
50% owner and co-developer of Baltica 2

Denmark's largest energy company and one of the world's biggest offshore wind developers.
VO
Van Oord
Dutch marine contractor
Monopile installation contractor

Dutch marine engineering firm installing the 111 monopile foundations for Baltica 2.
Seaway7
Seaway7
Offshore construction contractor (Subsea7 group)
Substation transport and installation contractor

Contractor transporting and installing Baltica 2's four offshore substations using heavy lift vessels.

Timeline

March 2024 October 2026

6 events Latest: Yesterday
Tap a bar to jump to that date

  1. BGB Group awarded substation scaffolding framework

    Latest Contract

    BGB Group wins the framework for offshore scaffolding and construction services across the four substations, through commissioning at the end of 2027.

  2. All four offshore substations completed

    Milestone

    The four 3,500-tonne, five-deck substations finish onshore production, cleared by more than 720 commissioning tests.

  3. Monopile installation begins

    Construction

    Van Oord starts installing the first of 111 monopiles in the Baltic Sea, each averaging 1,500 tonnes.

  4. First transformer installed on a substation

    Milestone

    The first of two 225 MVA transformers per unit is installed on an offshore substation under the SEMCO Maritime-PTSC consortium.

  5. Final investment decision clears construction

    Decision

    PGE and Ørsted reach final investment decision, formally approving the project's construction budget.

  6. Seaway7 wins substation transport and installation contract

    Contract

    Seaway7 is hired to move and install Baltica 2's four offshore substations, with offshore work planned for 2026.

Scenarios

1

Baltica 2 commissions on schedule in late 2027

Likely Resolves by End of 2027

Discussed by: Project partners' stated target; BGB's framework runs through commissioning at the end of 2027

The wind farm reaches full commercial operation by the end of 2027, with all 107 turbines generating and the four substations feeding the Polish grid. It is the outcome PGE and Ørsted have targeted since the final investment decision, and both the Seaway7 and BGB scopes run through that window.

2

Installation delays push full commissioning into 2028

Possible Resolves by End of 2027

Discussed by: Offshore wind analysts tracking Baltic weather windows and vessel availability

Weather, vessel availability or a contractor slip delay the offshore campaign past year-end. Monopile installation alone runs through Q4 2026, leaving little slack before the end-2027 target.

3

First Baltica 2 power flows before the full farm is built

Likely Resolves by End of 2027

Discussed by: Project schedule showing staged turbine installation through 2027

Turbines start generating and feeding the grid in stages as they are installed, well before all 107 are online. Staged ramp-up is standard in farms this size, so partial output during 2027 would not contradict the end-of-year commissioning target.

Historical Context

2 moments from history that rhyme with this story — and how they unfolded.

2018-2020

Hornsea One (2018-2020)

Ørsted built 1.2 GW of offshore wind in the North Sea off the UK, 174 turbines that at commissioning in 2020 made it the world's largest wind farm.

Then

Set the benchmark for large-scale offshore wind construction and grid connection.

Now

Showed that multi-gigawatt offshore wind was buildable, driving rapid growth across the sector.

Why this matters now

Baltica 2 is a comparable Ørsted-built project at a larger 1.5 GW; Hornsea One illustrates the logistics and marine operations scale involved.

2019-2021

Kriegers Flak (2019-2021)

Denmark's 604 MW Kriegers Flak wind farm in the Baltic Sea was fully commissioned in 2021, the first offshore wind farm to link two countries' power systems, connecting Danish and German grids.

Then

Proved Baltic Sea offshore wind could integrate across national grids.

Now

Established the Baltic as a viable offshore wind region, a template Baltica 2 builds on.

Why this matters now

Kriegers Flak demonstrated Baltic conditions and grid integration work; Baltica 2 applies the same lessons at roughly 2.5 times the capacity.

Sources

(9)
+3
Construction Review Online BGB Group Ørsted Ørsted / Baltica 2 project Gazeta Morska via Dailymare Baltica 2 project Seaway7 GlobeNewswire 4C Offshore