Netherlands-based C1 Connections has performed a full-scale test of its new connection for wind turbine towers.
The C1 Wedge Connection has been developed as a low-maintenance alternative to bolted flange connections used in tubular steel towers and foundations and is applicable in on and offshore wind.
Production, installation and behaviour of the connection were tested at full scale.
Results show that the C1 Wedge Connection can be installed much faster than conventional bolted flange connections, C1 Connections said.
In April 2019 C1 Connections began cooperating with Siemens Gamesa and Delft University to further develop the C1 Wedge Connection for application in wind turbine substructures.
C1 Connections managing director Jasper Winkes said: “We are thrilled with the results of the full-scale test. We have proven that the technology can withstand extreme loads where the current bolted L-flange is already reaching its limit.
“Moreover, the C1 Wedge Connection allows the reduction of CAPEX and OPEX while making installation considerably faster and safer.”


