The solar thermal fuels capture the sun’s energy in the chemical bonds between the molecules. This energy can be stored indefinitely forever in the fuel. To better understand the charging and discharging phenomenon, consider this example. Suppose that a normal uncharged fuel molecule is in a ground state A initially. As this molecule absorbs the solar thermal energy, the molecule goes from state A to excited state B. This results in a minor change in the geometry of the molecular structure but no chemical reaction occurs. Such molecules are called “photo-switchable”.
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- EU countries trigger entry into force of Kigali Amendment to Montreal Protocol 16/11/2017The Kigali Amendment to the Montreal Protocol, which will bring about a global phase-down of hydrofluorocarbons (HFCs), will take effect in January 2019 as a number of EU Member States have now deposited their ratification instruments.
- EU to conclude ratification for second Kyoto Protocol commitment period by end of this year 15/11/2017The European Union and its Member States intend to deposit their ratification instruments for the Doha Amendment establishing the second commitment period of the Kyoto Protocol by the end of this year at the latest.
- EU countries trigger entry into force of Kigali Amendment to Montreal Protocol 16/11/2017
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