On February 13, 2024, E-Bridge and energate published the additional marginal cost indicator “Hydex12 Green”, which reflects hydrogen production during the cheapest 12 hours of the day and thus an operating time of 4,380 full-load hours per year. The “Hydex12 Green” thus reflects a largely realistic mode of operation for an electrolyser.

The “Hydex12 Green” complements the “Hydex Green” hydrogen cost indicator, which has been published since March 2021 and is based on the daily 24-hour average of spot electricity prices.

Taking into account the daily stock market profile of hourly electricity prices, it can be seen that two 6-hour blocks would enable significantly more cost-effective and sustainable hydrogen production on average. On average, the most cost-effective operating hours for an electrolyzer are between midnight and 6 a.m. and between 11 a.m. and 5 p.m.. These two 6-hour blocks largely coincide with a high proportion of renewable electricity generation from wind and solar power, which also enables alignment with certificate regulations and the EU Delegated Act on green hydrogen.

Find out about the new “Hydex12 Green” cost index at E-Bridge.com or in the energate messenger!

If you would like to find out more about how the “Hydex12 Green” can help you with the operation of your electrolyzer or with the procurement of hydrogen, please contact our colleagues Philipp Heuser or Andreas Gelfort.

Hydex12 Green_Slider (only German language)