However this technology is facing substantial challenge from the need to reduce costs and/or increase performance.
Like most cities of its size and age, New Rochelle faces substantial challenges.
He faces substantial challenges: other sellers can threaten to kill him if he lures their customers away.
Both leaders' parties face substantial challenges in elections this fall, so they have to proceed carefully, mindful of the political dangers of negotiating sensitive measures in an election year.
But upon closer inspection, Erickson faces substantial challenges as he attempts to prove that he can duplicate his success as a college coach, a record that included two national championships at the University of Miami and an impressive turnaround at Oregon State.
But they face substantial challenges based on the perception that they are out of touch with the values and needs of the kinds of voters who have been most affected by economic and cultural upheaval.
The industry still faces substantial challenges, though, including the very low cost of the fossil fuel that wind means to displace (natural gas) and problems in integrating more and more wind plants.
Developing countries faced substantial challenges in administering and enforcing the Uruguay round accords, and had legitimate concerns that violations of those rules could provoke retaliation that blocked access to foreign markets.However, the Doha round initiatives would probably be limited to commitments to greater transparency of government regulations and policies.
Radiologists face substantial challenges in the timely and appropriate communication of diagnostic test results.
However, previous efforts to acquire the high ORR activity by non-precious material and carbon composites faced substantial challenges due to a few active sites during electrochemical reactions.
The conversion of biomass to fuels and chemicals faces substantial challenges if it is to be done on a large scale, in a sustainable manner, and at reasonable cost.
