Start of construction of a wind to Hydrogen Plant by E.ON

An electrolysis pilot plant is being built by E.ON in Falkenhagen in north-east Germany. Excess power that is generated by wind farms is converted in hydrogen, at a production rate of 360m^3/h, by 2013.

Hydrogen can be treated like natural gas and injected in the gas grid. Due to gas regulations, at the moment only a small amount of hydrogen gas can be fed into the gas infrastructure.  Hydrogen can be also converted in synthetic gas.

If Germany expands the use of renewable energy sources, the power supply on very windy or sunny days will exceed demand more and more often, and to a growing extent. This will increasingly bring the power grid to the limits of its capacity.

http://www.eon.com/en/media/news/press-releases/2012/8/21/eon-startsconstruction-of-power-to-gas-pilot-plant-in-germany.html

Questions:
- Evolution of the regulation on hydrogen fed into gas grid
- Means to store excess energy
- Project of conversion of hydrogen into synthetic gas
- Doping of natural gas with hydrogen