Gallery




  • Burbo, NW-England

  • Sunrise at the Fenton Wind Farm in Minnesota, US

  • The CSP-station Andasol in Andalusia, Spain

  • Ivanpah solar plant in the Mojave Desert, California, United States

  • Three Gorges Dam and Gezhouba Dam, China

  • Shop selling PV panels in Ouagadougou, Burkina Faso

  • Stump harvesting increases recovery of biomass from forests

  • A small, roof-top mounted PV system in Bonn, Germany

  • The community-owned Westmill Solar Park in South East England

  • Komekurayama photovoltaic power station in Kofu, Japan

  • Krafla, a geothermal power station in Iceland

Comments

Post a Comment

Popular posts from this blog

Integration into the energy system

Image
Renewable energy production from some sources such as wind and solar is more variable and more geographically spread than technology based on fossil fuels and nuclear. While integrating it into the wider energy system is feasible, it does lead to some additional challenges. In order for the energy system to remain stable, a set of measurements can be taken. Implementation of energy storage, using a wide variety of renewable energy technologies, and implementing a smart grid in which energy is automatically used at the moment it is produced can reduce risks and costs of renewable energy implementation. In some locations, individual households can opt to purchase renewable energy through a consumer green energy program. Electrical energy storage Electrical energy storage is a collection of methods used to store electrical energy. Electrical energy is stored during times when production (especially from intermittent sources such as wind power, tidal power, solar power) exceeds consumption...
Read more

Mainstream technologies

Image
Wind power At the end of 2019, worldwide installed wind power capacity was 623 GW. Air flow can be used to run wind turbines. Modern utility-scale wind turbines range from around 600 kW to 9 MW of rated power. The power available from the wind is a function of the cube of the wind speed, so as wind speed increases, power output increases up to the maximum output for the particular turbine. Areas where winds are stronger and more constant, such as offshore and high-altitude sites, are preferred locations for wind farms. Typically, full load hours of wind turbines vary between 16 and 57 percent annually, but might be higher in particularly favorable offshore sites. Wind-generated electricity met nearly 4% of global electricity demand in 2015, with nearly 63 GW of new wind power capacity installed. Wind energy was the leading source of new capacity in Europe, the US and Canada, and the second largest in China. In Denmark, wind energy met more than 40% of its electricity demand while Irela...
Read more

Debate

Image
This section needs to be updated . Please update this article to reflect recent events or newly available information. ( March 2019 ) Renewable electricity production, from sources such as wind power and solar power, is variable which results in reduced capacity factor and require either energy storage of capacity equal to its total output, or base load power sources from non intermittent sources like hydropower, fossil fuels or nuclear power. Since renewable energy sources power density per land area is at best three orders of magnitude smaller than fossil or nuclear power, renewable power plants tends to occupy thousands of hectares causing environmental concerns and opposition from local residents, especially in densely populated countries. Solar power plants are competing with arable land and nature reserves, while on-shore wind farms face opposition due to aesthetic concerns and noise, which is impacting both humans and wildlife. In the United States, the Massachusetts Cape Wind...
Read more