HOMER Knowledge Base
Hydrogen energy storage in HOMER
Any plans for energy storage in the form of hydrogen?
HOMER can model hydrogen-based electrical storage, whereby an electrolyzer produces hydrogen from electricity when electrical supply exceeds demand, a tank stores the hydrogen, and a hydrogen-fueled generator converts the stored hydrogen back to electricity when electrical demand exceeds supply.
This capability existed in HOMER 2.0. The only change in version 2.1 is that we separated the hydrogen tank inputs into their own window, and added an input variable specifying the initial level of storage in the tank.
HOMER can also model hydrogen production systems, meaning systems whose purpose is to generate hydrogen rather than (or in addition to) electricity.
You can specify the hydrogen demand in kg/day, and that demand can be met by an electrolyzer or a reformer or both.