Renewable energy is taking a different turn. Think about the endless applications to the gas converted from electricity, the gas that is bombarded and reacted with other elements to realize and restore things to their natural order that should play a significant role in the future. This technology is known as the power to x technology, x could be heat (power to heat), gas (power to gas), and fuel (power to fuel). Considering the possibility of reducing greenhouse gases in the long run, the researchers have devised to use different strategies of power to x technology.
Electric power to gas or P2G/PtG is a technology that converts electricity to gas from the surplus power generated from windmills, thus also hailing the name windgas. At present, there are three methods that all use the excess electricity produced to split water into hydrogen and oxygen through the means of electrolysis.
The first method uses the resulting hydrogen to be administered into the natural gas grid or could be used in transport or industry. The second method combines the hydrogen with carbon dioxide and converts the two gases to methane using a methanation reaction, preferably a biological method that could save eight percent extra in energy conversion loss. The resulting methane could be further converted to LPG by producing synthetic natural gas (SNG) with partial reverse hydrogenation at high pressure and low temperature. The LPG formed can be further converted into alkylate which is a premium gasoline blending stock that has exceptional antiknock properties and gives clear burning. The third method increases the quality of biogas by mixing hydrogen with output gas from biogas plants.
There are many advantages to the continuous use and growth of PtG. It allows the conversion of volatile electricity into renewable, synthetic gasses with little or no carbon footprint which could be stored, transported or commercialized for mobility and industrial market. PtG decarbonizes the gas grid replacing fossil natural gas. It enables efficient integration of high shares of volatile renewable energy in the energy market.
One cannot deny the fact about the growing demands of reduced carbon dioxide levels on a global scale. Even with this alarming warning for the reduction of carbon dioxide levels in the atmosphere, there still exists the compelling use of fossil fuels resulting in an incremented level of carbon dioxide.