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ICCP Offshore Wind turbine protection

ICCP technology and wind turbine protection

CORROSION’s highly sophisticated Impressed Current Cathodic Protection
(ICCP) offshore wind system is the most cost-effective, easy-to-maintain and environmentally friendly solution on the market for the protection of offshore wind turbine foundations against corrosion.

Better performance at better value

While Galvanic Anode Cathodic Protection (GACP) systems operate on the natural driving force between two metals, our ICCP system uses a continuous external power source. CAPEX/OPEX calculations demonstrate that the ICCP-systems offer a far more economical solution for offshore wind turbine corrosion protection in the long term.

Durability and longevity

What’s more, traditional technologies require large quantities of heavy sacrificial anodes to meet the offshore foundation design life of over 25 years. In contrast, CORROSION’s ICCP system requires only a limited number of ICCP anodes and sensors to work effectively for well over 25 years, which is in excess of the initial design life of the wind turbines. As a result, the same system can continue to be used even in the event of the offshore wind farm lifetime being extended.

A further advantage of our ICCP wind systems is that they are equipped with a standard feature to take data readings and make adjustments at the touch of a button from an offshore wind farm control center rather than having to do so on location – something particularly important given the hard-to-reach locations of many offshore wind farms. System performance is monitored, and a warning is triggered if any of the values are too high or too low.

For GACP systems, regular offshore campaigns are necessary to execute a performance and protection level check. These are both costly and time consuming.

Offshore Wind Projects

Protecting over 2.300 foundations, and counting

Project nameFoundation
Alpha Ventus6Tripod
Arkona Becken60Monopile
Baltic Eagle50Monopile
Baltic II Substation1Jacket
Belwind II50Monopile
Borkum West II1Jacket
Borkum west II – Phase II32Monopile
Borssele III & IV77Monopile
Borssele V2Monopile
Changle A26Jacket
Changle A Substation1Jacket
Changle C14Jacket
DanTysk Substation1Jacket
DanTysk OAP Substation1Jacket
Deutsche Bucht31Monopile
Global Tech80Tripod
Global Tech Substation1Jacket
Greater Gabbard140Monopile
Hohe See71Monopile
Hollandse kust70Monopile
Horns Rev III49Monopile
Kaskasi Substation1Monopile
Kaskasi II38Monopile
Les Eoliennes Flottantes du Golf du Lion4Monopile
Meerwind Substation1Jacket
Seamade (Seastar)30Monopile
Seamade (Mermaid)28Monopile
Northwester II23Monopile
Northwester II Substation1Monopile
Noshiro Port21Monopile
Riffgat Substation1Jacket
Saint Nazaire80Monopile
Triton Knoll90Monopile
Veja Mate67Monopile
Xinghua Bay Substation1Monopile

Offshore Wind Projects

Protecting over 2.300 foundations, and counting

Project name

Foundation quantity

Foundation type

ICCP Protection

Commissioning date

Albatros 16 Monopile Internal 09-01-2020
Albatros 16 Monopile Internal 09-01-2020
Alpha Ventus 6 Tripod External 27-04-2010
Arkona Becken 60 Monopile Internal 01-01-2019
Baltic Eagle 50 Monopile Internal 30-09-2024
Baltic II Substation 1 Jacket External 29-10-2015
Belwind II 50 Monopile External and Internal 09-12-2010
Borkum West II 1 Jacket External 03-07-2020
Borkum west II – Phase II 32 Monopile External and Internal 03-07-2020
Borssele III & IV 77 Monopile External and Internal 06-01-2021
Borssele V 2 Monopile External and Internal 25-02-2021
Butendiek 80 Monopile External 04-08-2015
Changle A 26 Jacket External and Internal 01-10-2021
Changle A Substation 1 Jacket External 01-10-2021
Changle C 14 Jacket External 01-10-2021
DanTysk 80 Monopile External 30-04-2015
DanTysk Substation 1 Jacket External 30-04-2015
DanTysk OAP Substation 1 Jacket External 30-04-2015
Deutsche Bucht 31 Monopile External and Internal 30-09-2019
Galloper 56 Monopile Internal 03-04-2018
Global Tech 80 Tripod External 02-09-2015
Global Tech Substation 1 Jacket External 02-09-2015
Greater Gabbard 140 Monopile External 07-08-2013
Hohe See 71 Monopile Internal 01-11-2019
Hollandse kust 70 Monopile External 01-06-2023
Horns Rev III 49 Monopile External and Internal 22-08-2019
Kaskasi Substation 1 Monopile External and Internal 01-10-2022
Kaskasi II 38 Monopile External and Internal 01-10-2022
Les Eoliennes Flottantes du Golf du Lion 4 Monopile External 01-09-2023
Luchterduinen 43 Monopile External 21-09-2015
Meerwind 80 Monopile External 29-12-2014
Meerwind Substation 1 Jacket External 29-12-2014
Merkur 66 Monopile External and Internal 24-06-2019
Seamade (Seastar) 30 Monopile External and Internal 15-12-2020
Seamade (Mermaid) 28 Monopile External and Internal 15-12-2020
Northwester II 23 Monopile External and Internal 14-05-2020
Northwester II Substation 1 Monopile External 14-05-2020
Noshiro Port 21 Monopile External and Internal 31-12-2022
Rentel 42 Monopile Internal 31-12-2018
Riffgat 30 Monopile External and Internal 07-03-2014
Riffgat Substation 1 Jacket External 07-03-2014
Saint Nazaire 80 Monopile External and Internal 31-12-2022
Sandbank 72 Monopile External and Internal 25-01-2017
Triton Knoll 90 Monopile External and Internal 01-01-2022
Veja Mate 67 Monopile Internal 31-05-2017
Xinghua Bay Substation 1 Monopile External 01-01-2017
Yunlin 80 Monopile External and Internal 31-03-2022

GACP systems have a very significant carbon footprint long before they are even installed on wind turbine foundations. The production process of aluminum – from extracting bauxite to producing a suitable aluminum alloy, in addition to that of heavy metal alloying elements such as Zinc – requires the transportation of metals over long distances, sometimes from one side of the world to another. Moreover, every additional sacrificial anode leads to the further depletion of resources such as aluminum and all the alloying elements.

Post-installation, GACP systems release tons of potentially harmful metals into the world’s seas and oceans. A 1,000-megawatt windfarm with 100 monopiles requires an average of 1000 tons of aluminum anodes, in addition to heavy metal zinc alloying element of approximately 50 tons – all of which will dissolve in the seawater and affect the marine life.

In comparison, for the very same 1,000-megawatt windfarm, CORROSION’s ICCP system anodes only require a 750-gram coating of Metal Mixed Oxide (MMO). These oxides are made of precious metals such as Iridium, Platinum, Ruthenium and not of heavy metals.

This means around 60,000 times less zinc and 1.5 million times less aluminum is emitted into marine environment than our ICCP system than with traditional sacrificial anodes. More information can be found in our whitepaper ‘ICCP vs GACP’.

ICCP technology and wind turbine protection

To learn more about sacrificial anodes, please click here.

Whitepaper ICCP vs GACP