Table 3 Coding framework for selective coding and axial coding. The number in brackets following each axial code represent the number of observations of that code across the ten interviews
From: Circular Value Chains in the European Wind Turbine Industry: Reuse and Refurbishment
Selective codes | Axial codes (#open codes) |
|---|---|
Value chain | Inspection (23), Civil engineering (13), cranes (17), decommissioning (41), transport (38), tender (18), subcontracting (11), recommissioning (16), Vestas (40), recycling (23), knowledge (22), connecting supply and demand (18), service contracts (15) |
Reuse | As is (20), WT in good condition (22), WT reuse (28), WTC reuse from scrap WT (16), reuse (12), minimal maintenance and repair (15) |
Refurbishment | Refurbishment (29), refurbishment specialist (19), WT in poor condition (13), gearbox (67), generator (31), warranty (17), risk control (11) |
Drivers | Low CAPEX (14), size restrictions (10), lead time (8), policy incentives (7), export (27), network (27), obsolete WTC (16), subsidies (14), |
Barriers | Legislation (12), financial institutions (23), grid requirements (6), low power price (5), high transport costs (6), insurance (16), newer WTs more profitable (16) |
WT lifetime | First-service-life (12), next-service-life (9), potential WT lifetime (11) |
Circularity | Circularity as business model (18), exchange system (12), demand for circular business (11), shift to WTCs (14) |