RegGuheert wrote:My conclusion remain: I don't see 100 station supporting more than 30,000 vehicles, and even that is a real stretch since it assumes equal loading between stations and that each station can deliver their daily output during the peak periods. Each assumption is highly unlikely to be true.GRA wrote:<snip> Appendix D contains all sorts of actual usage data, including average fills, utilization rates, fills by time of day/week, and by 350/700 bar. One oddity is that unlike gas/diesel, which see the majority of fills during morning and evening commutes, the majority of 700 bar H2 fills have been happening around midday. They didn't suggest a reason, and I can't think of one. Haven't quite finished reading all the appendices yet.
They're not expecting equal utilization. One of the usage charts (Figure D-5, "Station Counts by Average Quarterly Utilization") shows utilization rates as a % of time, and they vary widely. While the majority of stations are in the 0-5 and 5-10% range at the moment, utilization rates have been climbing (from 1.8% avg. & the end of Q4 2015, to 8.0% as of the end of Q3 '16, with 1 station seeing an average utilization rate of 45%), and one is apparently experiencing occasional periods of 75-80% (presumably the same one that's averaging 45%). The main thing such rates can help show is where the density of stations and/or the capacity/throughput of each station needs to be beefed up in future years.