Zephyr AS is a Norwegian renewable energy company specializing in the development, construction, and operation of onshore wind farms. Founded in 2006 and headquartered in Grålum, it covers the full value chain from landowner negotiations and project planning to financing, building, and commercial operation. Owned by Norwegian utilities Østfold Energi, Vardar, and Glitre Energi, Zephyr has developed around 800 MW of wind capacity in Norway, with expansions into Sweden (including offshore projects) and Iceland.
The company contributes to Norway's energy transition amid growing demand for renewables, offering projects like Guleslettene and Mehuken wind farms. Zephyr pursues climate-neutral operations, recently signing a four-year agreement with Carbon Centric for carbon removal certificates to offset its estimated 10 tCO₂/year Scope 1 residual emissions after internal reductions.