turbine

Talking about renewable energies is talking about China. Although they continue to burn coal and gas and want to become an oil power, the country is positioning itself as the major player in renewables. Also of the ‘megastructures’. And, combining both, we have Jupiter I. It is the first 30 MW class turbine in the world that works with pure hydrogen, it has just been launched. light and they aspire for it to be the solution to one of the biggest renewable energy problems. Take advantage of surplus energy. Jupiter I. Like practically everything that has to do with energy and China, the numbers of this plant are, to say the least, striking. Now we will get into the fact that it is the first 30 MW class turbine that runs on pure hydrogen. There are others in the world that operate in pilot mode on a scale of 5 or 10 MW, but they are natural gas turbines that have been converted. Jupiter I has been designed from the ground up as a pure hydrogen machine that, in combined cycle mode, can generate 48 MWh. It is estimated that it is enough to satisfy the daily demand of more than 5,500 homes. Those responsible for the turbine they claim that the machine “can use more than 30,000 m³ of hydrogen per hour, which calculated annually is the equivalent of 500 million kWh.” In perspectiveit’s like filling the gigantic Hindenburg airship 25 times every hour. And the key to this is that it is electricity stored in the form of hydrogen pure hydrogen. Although it has not fully caught on in sectors such as utility vehicles, hydrogen has the potential to be one of the fuels that helps achieve decarbonization objectives. It all depends on its color: green is achieved through renewable energy and black through burning coal, for example. Turbines are classified according to the type of fuel they burn and the percentage of hydrogen in the mixture. There are those that use only up to 20% H2, others that use 50% H2 and those that use pure hydrogen, which operate entirely with this fuel. They are usually pilot or demonstration units, but Jupiter 1 is the first of its kind in which all its systems (combustion chamber, injection and flame control) are optimized for that fuel. Megaplant. The turbine is not isolated. It is located in Ordos, Inner Mongolia, and is part of a larger system. It is inside a 500 MW wind farm. It is not an astronomical figure considering what we are used to, but it is important to remember that not all the energy produced by renewables is stored correctly. Much of it is wasted, either because there are not enough batteries, or because it is not consumed when needed or because it is stored and lost. How it works. That’s where Jupiter I comes into play. The system works through a kind of closed cycle of electricity – hydrogen – electricity. When wind turbines generate more energy than the grid can consume and it is not going to be stored in batteries, turbines like this one can use that excess to produce green hydrogen. Once produced, it is stored in tanks, and at the Ordos plant there are a dozen of 1,875 m3 each. If the grid is stable and can operate well with renewables, that hydrogen is stored there, but in times of greater demand or when renewables cannot satisfy it, that stored green hydrogen comes into play to produce emissions-free and immediately accessible electricity. Fighting deserts. Placing a hydrogen turbine right in a renewable plant solves the challenge of wasting electricity, but also that of transporting hydrogen, which we have already seen is complicated. Precisely, that is where those responsible say that the technology has great potential. It is in the deserts where China has found an oasis of renewable energy, and having turbines of this style can further enhance those megascale energy projects – greater than 1 GW – that China is deploying. Now we have to see if it fulfills what it promises, since it is the first of a pilot project, but according to warned by the China National Energy Administration in June this year, it will not be the last. Image | FreePik and Pexels In Xataka | We have known for years that the future of wind power was in the sea and yet only one country has believed it: China