In 2016, 12% of the installed wind turbine capacity in Europe was older than 15 years. This share increases to 28% by 2020. Consequently, a significant number of wind turbines will reach the end of their planned service life in the near future. Lifetime extension is appealing in that it can increase returns on investment […]
The Italian Elevation Model – TINITALY – is a seamless digital elevation model that covers the territory of Italy. It is produced by Tarquini et al – using a Triangular Irregular Network (TIN) approach – and built from separate elevation models from each of the administrative regions of Italy. Grid resolution is 10m with the […]
Pit thermal energy storage (PTES) combined with solar collector systems and other technologies such as e.g. CHP, ORC, boilers and heat pumps is an attractive solution to utilize long-term stored excess heat and consequently to de-carbonize the heat supply. It can be build big. It is cheap. It is simple. But it is not simple […]