Two Thirds Of Sofia Wind Turbines Installed
The title of this post, is the same as that of this article on offshoreWIND.biz.
This is the sub-heading.
Seventy wind turbines have been installed at RWE’s Sofia offshore wind farm in the UK, according to a Notice to Mariners recently issued by the project team.
These two paragraphs give more details of the installation process.
The first of the project’s 100 Siemens Gamesa SG 14-222 DD wind turbines was installed in March 2025, and the work reached the halfway mark in September last year. The vessel deployed for the work is Cadeler’s Wind Peak, which is carrying components for six turbines per trip, operating from the port of Hull.
IWS service operation vessel (SOV) IWS Seawalker is supporting the wind turbine installation work.
Note.
- Sofia is being installed by German Company ; RWE.
- Sofa will use 14 MW Siemens Gamesa wind turbines, some of which have recyclable blades.
- The installation process is being carried out nearly 200 kilometers out to sea on the Dogger Bank.
The power will be connected to the grid at Lackenby substation, which is near the Wilton chemical works, which can certainly you the electricity.
Does Wilton Chemical Works Have A Power Station?
I asked GoogleAI, the question in the title of this section and received this reply.
Yes, the Wilton International industrial site (formerly associated with ICI chemical works) has multiple power stations and significant on-site energy generation, operated primarily by Sembcorp Utilities UK. The site features a biomass power station (Wilton 10), a further biomass unit (Wilton 11), and an energy-from-waste plant, supplying electricity and steam to chemical and industrial businesses on-site.
Note.
- Wilton 10 opened as a biomass power station in 2002.
- Wilton 11 opened as a biomass power station in 2016.
I seem to remember, that one of these power stations was there on my visits to Wilton for ICI in the 1970s.
Key details regarding power generation at Wilton:
Biomass & Waste-to-Energy:
The site transitioned from coal-fired units to renewable biomass and waste-to-energy, utilizing wood and other byproducts for power and heat generation.
Sembcorp Utilities:
Sembcorp operates the site’s energy infrastructure, which includes five different generation assets and a private wire network.
Capacity: The site hosts significant generation capacity, including a 52MW biomass unit and a 35MW unit.
Future Projects: The site is involved in developments for net-zero emissions, including the Whitetail Clean Energy project, which is planned as the UK’s first Net Zero emissions power plant with Carbon Capture and Storage (CCS).
The site serves as a “plug and play” industrial location offering on-site, cost-effective energy.
Conclusion
This would appear to be a sensible small power system providing 1400 GW of wind power, backed up if needed be by the two biomass units, which total 87 MW.
Note, that ICI were storing gases under the site for many years, so I suspect, that Carbon Capture and Storage, might work well at this location.
I can see other places, where a wind farm, is combined with energy from waste for backup.
Are Wind Farms Being Backed Up By Energy From Waste Units In The UK?
I asked GoogleAI, the question in the title of this section and received this reply.
Yes, but only in a limited, complementary capacity, rather than as a direct, large-scale substitute for wind power.
Energy from Waste (EfW) units—commonly known as incinerators—are increasing in the UK, but their role in the grid is different from how we “back up” wind.
Here is a breakdown of how it works:
1. The Role of EfW (Baseload, not Backup)
Baseload Generation: EfW plants run 24/7 to burn waste. They provide a steady, consistent, predictable “baseload” of electricity (about 2–3% of UK supply).
Intermittency: Because they run constantly, they cannot ramp up and down quickly when the wind stops blowing. Therefore, they are not a “flexible” backup in the same way gas power plants are.
Partial Renewable: Around 50% of the energy produced by EfW is considered renewable (organic waste), helping the UK hit green targets.
2. What Actually Backs Up Wind?
When wind farms stop producing power during low-wind periods (often called “dunkelflaute”), the UK relies on other sources:
Natural Gas Plants: These are the primary, flexible backup that can ramp up instantly to fill gaps in renewable production.
Interconnectors: Imported electricity from other countries (e.g., Norway, France).
Battery Storage: Growing, but still small-scale compared to total demand.
3. How EfW Helps the Grid
EfW does assist the grid by providing system inertia and consistent, low-carbon, on-demand energy, reducing the need for more fossil fuels to be burnt at certain times. They are particularly useful for providing power when the grid is congested, but they do not specifically act as a “spare tire” for wind farms.
4. Future Trends
The government is looking to attach Carbon Capture and Storage (CCS) to EfW units, which would make them a low-carbon, dependable, and sustainable part of the energy mix by the 2030s.
In summary: EfW plays a part in supporting a greener grid, but it is not a direct substitute for the flexibility required to back up intermittent wind power.
5. Hydrogen Power
This is a section, that artificial intelligence has unsurprisingly left out, as no country has yet built the hydrogen storage and the power stations to generate the electricity, when it is needed.
But Note.
- SSE are building a big hydrogen store in Yorkshire at Aldbrough.
- Centrica are converting the Rough gas storage to a hydrogen store.
- SSE are building a 910 MW hydrogen-powered power station at Keadby.
- SSE are building a 1200 MW hydrogen-powered power station at Ferrybridge.
I suspect if you were building a chemical plant and Wilton fitted your budget, you would take a look.
The Anonymous Widower 