Read our May issue
This month we look at wind-induced power-line failures, inclusing Pay-as-you-go energy systems, the role of role of lithium oxide in batteries, and more.
This month we look at wind-induced power-line failures, inclusing Pay-as-you-go energy systems, the role of role of lithium oxide in batteries, and more.
A key issue in net energy analysis is the omission of the effects of end-use efficiencies on the energy returns of technologies. Now, an analysis shows that these effects strongly favour the energy returns of wind power and solar photovoltaics, which are found to be higher than those of fossil fuels.