On their bumpy road to commercialization, hydrogen production, deliver
y and conversion technologies not only require dedicated research, dev
elopment and demonstration efforts but also protected niche markets an
d early adopters. While niche markers utilize the unique technological
properties of hydrogen, adopters exhibit a willingness to pay a premi
um for hydrogen fueled energy services. The concept of the technology
learning curve is applied to estimate the capital requirements associa
ted with the commercialization process of several hydrogen technologie
s. (C) 1998 International Association for Hydrogen Energy.