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Wind characteristics and wind energy assessment in the Barents Sea based on ERA-Interim reanalysis

Duan C., Wang Z., Dong S., Zhenkun L.

Oceanological and Hydrobiological Studies

2018

Vol. 47, No. 4

415--428

The basic analysis of long-term wind characteristics and wind energy resources in the Barents Sea was carried out from 1996 to 2015 based on the ERA-Interim reanalysis dataset from ECMWF. In recent years, it has been possible to exploit the wind power resources in the Barents Sea at the hub height due to the sea ice cover retreat in the northeast direction. Based on the NSDIC monthly sea ice concentration data, the entire Barents Sea has been partitioned into the ice-free zone and the ice zone. Spatial and temporal distributions of the mean monthly and annual wind speed and wind power density are presented in both zones. Seven points were selected at different locations in the ice-free zone so as to obtain and study the wind roses, the interannual wind power variation and the annual average net electric energy output. For extreme wind speed parameters, the Pearson type III distribution provides better fitness of annual speed extrema and the Gumbel distribution performs well with higher speeds at longer return periods.

Scenariusz średnich kosztów energii elektrycznej do roku 2050 oraz cen w taryfach za energię elektryczną dla wybranych grup odbiorców do roku 2030

Wiśniewski G., Curkowski A., Pejas B.

Energetyka – Społeczeństwo – Polityka

2017

nr 2(6)

53--80

A model of prices and tariffs for the Polish power system was developed, which allows assessment of the effects of public policy in the energy sector from the point of view of energy costs for the economy and for selected group of consumers. Modelling results can be used to assess the market and economic effects of individual scenarios, energy concepts or regulatory impact assessment. The model with the forecast of costs and energy prices allows to analyse the potential impact of the introduction or exclusion from the national energy system of a specific group of technologies or central power plant on electricity costs. The results of the analysis indicate the inevitability of the increase of energy costs. Domestic energy policy leads to an increase in operating costs and, as a result, to an increase in total costs in the power generation sector from PLN 37 billion in 2015 to PLN 68 billion in 2030, which will translate into an increase in tariffs for small and medium enterprises and households.