In contrast with low-temperature electrolysis, HTE of water converts more of the initial heat energy into chemical energy (hydrogen), potentially doubling efficiency to about 50%. Because some of the energy in HTE is supplied in the form of heat, less of the energy must be converted twice (from heat to electricity, and then to chemical form), and so the process is more efficient.
Wiktionary(0.00 / 0 votes)Rate this definition: 1  reserve(Noun) The act of reserving, or keeping back; reservation; exception. 2  reserve(Noun) That which is reserved, or kept back, as for future use. 3  reserve(Noun) A natural resource known to exist but not currently exploited.
A reserve currency is a currency that is held in significant amounts by governments and institutions in order to help conduct transactions in the global market. The major reserve currency of the planet right now is the US Dollar, which composes upwards of 60% of all forex reserves.The Euro has grown in prominence over the past decade as a reserve currency, and now makes up nearly 30% of all forex reserves through the world.ommodities such as oil and gold are usually priced in a certain type of currency (US Dollars), meaning that governments need to have large pools of US Dollars (or Euros) in their foreign exchange reserves in order to engage in the buying and selling of these commodities.