Renewable energy is usually defined as energy that is collected from resources which are naturally replenished on a human schedule, such for example sunlight, wind, rain, tides, waves, and geothermal heat.
According on REN21’s 2016 report, renewables subsidized 19.2% toward humans ' global energy consumption and 23.7% to their generation of electricity in 2014 and 2015, respectively. This energy consumption is divided as 8.9% coming from traditional biomass, 4.2% as heat energy (modern biomass, geothermal and solar heat), 3.9% hydro electricity and 2.2% is electricity from wind, solar, geothermal, and biomass. An average of 147 gigawatts has been generated in the year 2015.
In parallel with growth in markets and investments, 2015 saw continued advances in renewable energy technologies, ongoing energy efficiency improvements, increased use of smart grid technologies and significant progress in hardware and software to support the integration of renewable energy, as well as progress in energy storage development and commercialization.
Employment in the renewable energy sector increased in 2015 to an estimated 8.1 million jobs. Solar PV and biofuels provided the largest numbers of renewable energy jobs. A large scale hydropower accounted for an additional 1.3 million direct jobs.
History of Renewable Energy Technology in UK
The UK is on track to meet its renewable energy goals, with wind power substituting for gas and coal use and driving down greenhouse gas emissions, according to new analyses. However, the actions of the next government are likely to be crucial in deciding whether the legally binding targets can be met.
Gas use in the UK fell by more than a fifth from 2005 to 2012, as energy efficiency increased acro...
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...tal now over 7.8GW, the sector is two and a half times bigger than it was at the end of 2007. Onshore wind is the biggest single technology, accounting for over 69 per cent of installed capacity, while hydro, solar and bioenergy are Scotland’s other major sources of renewable power.
It shows that renewable electricity generation is now equivalent to approximately 57.4 per cent of Scotland’s electricity consumption. The Scottish Government’s 2011 target of 31 per cent was surpassed with a total of 36.2 per cent.
Scotland 's renewable energy targets:
• 100% electricity demand equivalent from renewables by 2020.
• Interim target of 50% electricity demand equivalent from renewables by 2015.
• 11% heat demand from renewables by 2020.
• At least 30% overall energy demand from renewables by 2020.
• 500 MW community and locally-owned renewable energy by 2020.
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