Renewable portfolio standards (RPS) are the most popular U.S. state-level policies for promoting deployment of renewable electricity (RES-E). While several econometric studies have estimated the effect of RPS on in-state RES-E deployment, results are contradictory. We reconcile these studies and...

To achieve the turnaround towards carbon neutrality, countries need to take much more ambitious action in this decade. One of the key fields of action is the transition of the energy sector –from fossil to renewable fuels, while drastically reducing energy consumption. This paperdiscusses...

This paper provides a rationale for developing countries to announce future credible commitments to reduce GHG emissions even if these are not to materialize in the short run, and for domestic reasons only. A simple framework is presented in which it is shown that it may be costly for an economy...

The economics of biogas production remain marginal, even on ‘free’ substrates such as wastes. However, new insights into the fundamental processes of solid-state digestion promise a much faster and more predictable process. This holds the future prospect of profitable biogas production from...