Optimal proportion of renewable energy in energy mix for maximising energy resilience and reducing carbon emissions

Increasing use of renewable energy such as solar and wind power could help us reduce carbon emissions and is an approach for helping cities, states and countries to decarbonise their economies. However, renewable energy’s intermittency nature such as those associated with solar and wind energy meant that its increasing use carries significant risks for energy … More Optimal proportion of renewable energy in energy mix for maximising energy resilience and reducing carbon emissions

Could renewable energy compete without feed-in tariffs from governments?

Feed-in tariffs are currently required to enable renewable energy such as those from wind and solar to compete with conventional power from oil, coal and gas. Thus, could renewable energy compete with conventional power without feed-in tariffs from governments in the foreseeable future? The answer is very likely no, given the higher cost structure for … More Could renewable energy compete without feed-in tariffs from governments?

Resilience of electricity system with high proportion of renewable power generation

Renewable energy such as solar and wind power’s share of the energy mix is increasing in many parts of the world. While increasing proportion of renewable energy helps reduce the carbon footprint of electricity generation and reduce the impacts on climate change, low frequency events such as weather non-favourable to renewable energy generation may impose … More Resilience of electricity system with high proportion of renewable power generation

What is the value of an electric car to the environment at present: zero emissions or reduction in use of fossil energy?

Electric cars are often portrayed in the media as clean, zero emissions vehicles that tap on the latest innovations in renewable energy technologies. However, are they truly zero emissions vehicles and what is their most important contributions to environmental protection?   With an electric motor that runs on energy derived from the power grid, electric … More What is the value of an electric car to the environment at present: zero emissions or reduction in use of fossil energy?

Overabundance of renewable energy and the removal of feed-in tariffs

Renewable energy such as those from wind, tides and solar typically have higher production cost compared to electricity from oil, coal and gas, with coal being the cheapest fuel source for conventional power plants. With the emphasis on reducing air pollutants from fossil fuel fired power stations and the importance of lowering carbon dioxide emissions … More Overabundance of renewable energy and the removal of feed-in tariffs