>A National Renewable Energy Laboratory (NREL) study concludes that by 2050, hydrogen storage lasting for two weeks “is expected to be cost-effective.”
2050!!!
By 2050 we'll also have Fusion and other mythical power sources.
To be fair, hydrogen is one of those "mythical" power sources. It just happens to be the one that is becoming viable in the short-term and is not dependent on some future discovery.