That means rolling out much more low carbon electricity from sources such as nuclear, wind, solar, and hydropower.
The graph below gives an idea of what is required for the world to move from an energy system that could lead to six degrees of warming, to one that should give a reasonable chance of curbing warming to two degrees. The coloured chunks show how much each policy or technology contributes to getting carbon intensity down in gigatonnes of carbon dioxide to a level that would allow policymakers curb warming:.
Currently, fossil fuels are responsible for about 68 percent of electricity generation, and renewables 20 percent. As you can see, renewables the green chunks steadily increase their share, while fossil fuels the grey and blue chunks are increasingly squeezed out:.
More nuclear power and some fossil fuel power with carbon capture and storage CCS will also be necessary, it says. But the IEA has scaled back the amount of energy it expects to get from these sources by due to delays in getting CCS demonstration plants up and running and cost overruns on recent nuclear projects.
http://blog.am.mlsit.ru/wp-includes/angliyskogo/reshebnik-po-ukrainskomu.html But there are ways to get around this, the IEA says. CCS will soon have to be applied to natural gas, adds the report, which is set to lose its status as a low-carbon alternative by , as the increasing volume of renewables on the grid will mean that the energy supplied by gas becomes higher than the shifted average carbon intensity.
This manual is a guide for analyzing the economics of energy efficiency and renewable energy EE technologies and projects. We cannot use it to a significant extent today nor tomorrow. This handbook describes the U. Current carbon pricing schemes lack the strength, stability and credibility to inspire investor belief, the IEA says, leading to the perceived risk associated with carbon profligacy to be discounted. It was published in January
But in the short term the report forecasts that gas will continue to play a key role in increasing the integration of renewables and displacing dirtier coal-fired generation. Meanwhile, the report forecasts that it is improvements in energy efficiency that will account for the greatest reductions in greenhouse gas emissions by Overall, the report concludes that policy and technology will become driving forces in transforming the energy sector over the next 40 years, and have the potential to avert a future of increasing energy insecurity and a volatile fuel supply.
They have also reinforced the central role of policy in the increasingly urgent need to meet growing energy demand while addressing related concerns for energy security, costs and energy-related environmental impacts.