Capex of an inexpensive flexible wing like NPW

[PierreB]

@gordon_sp

I therefore think that a more reasonable 20 yr cost would be about half or 10 €/M2.

Such a low cost would perhaps be possible for a massive and standardized production.

@PierreB

Over 20 years, we therefore expect an expenditure of 1,400,000 euros, or $ 1,694,000.

That is about the price of a complete 1 MW wind turbine

Adding maintenance costs as mentioned above.

Cost Analysis: How Much Do Commercial Wind Turbines Really Cost? - Sigma Earth

Operations & Maintenance $42,000 to $48,000 per year

This would be the cost of a 4500 m² NPW producing maybe 1 MW with a wind of 10 m/s, and taking into account the division by 2 because of reel-in phase in yo-yo mode.

Don’t forget the prices and costs of the ground station. That said, we would be close to acceptable or even competitive global costs by using NPW kites with higher long-lasting fabrics in difficult conditions when they become available.