Zobrazeno 1 - 10
of 55
pro vyhledávání: '"Walwyn, David R"'
Autor:
Stephens, Anthony D, Walwyn, David R
As the United Kingdom wind fleet increases in size, wind lulls and slews will increasingly challenge the stability of its electricity system. The paper describes the use of models based on real time records and including solar slews, to investigate t
Externí odkaz:
http://arxiv.org/abs/2409.16110
Autor:
Stephens, Anthony D, Walwyn, David R
Previous work has resulted in the development of an energy model able to calculate wind and solar fleet efficiencies. However, for investment planning purposes, it is necessary to calculate from the lowest economically acceptable efficiencies how muc
Externí odkaz:
http://arxiv.org/abs/2403.09496
Autor:
Stephens, Anthony D, Walwyn, David R
The use of wind and solar generation is fundamental to the decarbonisation of the United Kingdom electricity system. However, the optimal level of renewable energy as a proportion of total demand is still being debated. In this paper, several models,
Externí odkaz:
http://arxiv.org/abs/2307.11840
Autor:
Stephens, Anthony D, Walwyn, David R
Sales of new petrol and diesel passenger vehicles may not be permitted in the United Kingdom (UK) post-2030. Should this happen, it is likely that vehicles presently powered by hydrocarbons will be progressively replaced by Battery Electric Vehicles
Externí odkaz:
http://arxiv.org/abs/2101.01065
Autor:
Stephens, Anthony D, Walwyn, David R
Methods for predicting the likely upper economic limit for the wind fleet in the United Kingdom should be simple to use whilst being able to cope with evolving technologies, costs and grid management strategies. This paper present two such models, bo
Externí odkaz:
http://arxiv.org/abs/1806.07436
Autor:
Stephens, Anthony D, Walwyn, David R
Energy policy in Europe has been driven by the three goals of security of supply, economic competitiveness and environmental sustainability, referred to as the energy trilemma. Although there are clear conflicts within the trilemma, member countries
Externí odkaz:
http://arxiv.org/abs/1802.07457
Autor:
Stephens, Anthony D, Walwyn, David R
The decision by the United Kingdom (UK) government in 2007 that the country should build a 33GW wind fleet, capable of generating 25 percent of the UK electricity requirement, was controversial. Proponents argued that it was the most attractive means
Externí odkaz:
http://arxiv.org/abs/1611.04174
Autor:
Walwyn, David R
Research funding agencies routinely use a proportion of their total revenues to support internal administration and marketing costs. The ratio of administration to total costs, referred to as the administration ratio, is highly variable and within an
Externí odkaz:
http://arxiv.org/abs/1610.01645
Autor:
Walwyn, David R., Kraemer-Mbula, Erika
Publikováno v:
In Energy Research & Social Science August 2021 78
