OPINION: I recently wrote an open letter to the Prime Minister because at a recent Federated Farmers meeting, Chris Luxon told me wind and solar generation is not subsidised. There are five effective subsidies that make investing in grid connected wind and solar generation viable. This skews the economics massively in favour of the non-dispatchable wind and solar generation. For each gigawatt (GW) of wind capacity, there must be a GW of back-up generation. Without these, wind or solar generation is completely uneconomic in New Zealand.