For concentrating solar, which involves mirrors that heat steam to generate electricity, IEA reiterated its vision for about 1,000
gigawatts by 2050 from about four
gigawatts now.
The photovoltaics and solar thermal power plants market in the Mena region's solar energy sector is expected to reach 3.5
gigawatts by 2015, said an expert.
The estimated generation capacity of 5.3
gigawatts to be added this year roughly equals the output of five nuclear reactors.
That may spur at least $9.6 billion in new installations with 3.2
gigawatts of capacity, Bloomberg New Energy Finance forecast.
By 2020 the Government hopes that it could provide around 34
gigawatts - which using current technology would mean introducing some 7,000 turbines.
Get smart, think small Local energy systems for New Zealand shows that in 30 years' time, 16,000 GWh (GWh =
gigawatts per hour, with 1
gigawatt = 1 billion watts) of energy could annually be delivered by adopting local energy systems now That is more than the 12,732 GWh of electricity consumed by the entire residential sector in 2005 .
homes with switching power supplies could save more than a
gigawatt of power.
To meet the challenge of producing one or more
gigawatts of power at 1 GHz for directed energy applications, an MBK concept, the
gigawatt multiple beam klystron (GMBK), has been proposed.
"The solar energy production has crossed 20
gigawatt, which is a remarkable achievement.