You talked a little about commercialization challenges. cost-competitiveness is one of those, and reliability of technology as well.
Mr. Dutton, you'd argue that yours is probably cost-competitive already and on the market.
QUEST, you've been at the committee before. We've had some of these discussions about the cost-competitiveness of integrated systems prior to this as well. Have you been able to deal with some of those challenges over the last few years? We probably spoke four or five years ago. How are you dealing with those challenges of cost-competitiveness?