Perspectives On New Energy
Views differ on renewable energy futures
Dave Elliott, 29 May 2019 (Physics World)
“…BP’s annual Energy Outlook has renewable energy making only a small primary energy contribution…[But] IRENA, the International Renewable Energy Agency, looks to renewables supplying around 60% of total primary global energy by 2050…Views clearly differ… [IRENA argues an] energy transformation driven by renewables could bring changes…[and] a democratization of energy. However, that transition won’t be automatic — there may also be conflicts over access to renewable resources, since they too are not distributed equally around the world…
[One 100% renewables study showed that] beyond 2040, PV will generate more than half of global electricity demand, and almost 70% in 2050…The transition will require a capex of around €22.5 trillion…[and] 22 TW of PV will generate nearly 70% of all electricity, and 3.2 TW of wind nearly 18%....[A Utrecht University 100% renewables study of seven scenarios for the European power system in 2050 found] it could operate with the same level of system adequacy as today when relying on European resources alone, even in the most challenging weather year observed in the period from 1979 to 2015…[The total cost of an optimized] 100% renewable power system (∼€530 bn p.a.) would be approximately 30% higher than a power system which includes other low-carbon technologies such as nuclear, or carbon capture and storage (∼€410 bn p.a.)…” click here for more
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