in providing future UK energy needs. Domestic production from the North Sea gas fields continues to lessen. And despite investment to enhance pipelines and storage of imported natural gas (mostly from Norway) there is a reluctance to allow too great a reliance on Russia and its gas exports for energy needs. By 2021, North Sea oil and natural gas production is predicted to slip 75 percent from 2005 levels to less than one million barrels per year. Oil and coal reserves for all of Europe are among the most tenuous in the developed world: for example, Europe's reserves to annual consumption ratio stands at 3.0, perilously low by world standards. A new "dash for gas" was announced by energy secretary Amber Rudd in November 2015. This is required to fill the gap between the closure of all coal-fired power stations by 2025 and the delayed opening of new nuclear power stations. Nuclear power Following the UK Government's January 2008 decision to support the building of new nuclear power stations, EDF announced that it plans to open four new plants in the UK by 2017. It is unlikely that more nuclear power stations will be built in Scotland as the Scottish Government is opposed. Renewable energy From the mid-1990s renewable energy began to contribute to the electricity generated in the United Kingdom, adding to a small hydroelectricity generating capacity. Renewable energy sources provided for 6.7 per cent of the electricity generated in the United Kingdom in 2009, rising to 11.3% in 2012. By mid-2011, the installed capacity of wind power in the United Kingdom was over 5.7 gigawatts and the UK was ranked as the world's eighth largest producer of wind power. Wind power is expected to continue growing in the UK for the foreseeable future, RenewableUK estimates that more than 2 GW of capacity will be deployed per year for the next five years. Within the UK, wind power is the second largest source of renewable energy after biomass. From 2020 an expansion of grid scale battery storage has been underway, helping to cope with the variability in wind and solar power. As of May 2021, 1.3 GW of grid storage batteries was active, along with the traditional pumped storage at Dinorwig, Cruachan and Ffestiniog. Energy end usage See main article Energy use and conservation in the United Kingdom For 2005, the break down of UK energy usage by sector