Recent Comments:
The DVD rewinder {DV Guru}
Oct 4th 2006 9:48AM One problem . It needs a 485.5 Volt battery.
BMW officially announces the BMW Hydrogen 7 {Autoblog Green}
Sep 13th 2006 8:32AM This is very nice . One problem ,where are you going to get the hydogen ? To split the H2 from oxygen in water by electrolysis requires 56.3 kilowatts for each liter of H2 because the process is only 70% efficient . This could be obained from burning coal , which is 40% efficient So 140.8 Kw would be required for each liter . Most H2 is made by "reforming" natural gas this is only 30% efficient and it would be better to burn the gas in a generating plant. Plus energy is required to compress the H2 to a useable volume or liquify it. Liquefying, which BMW advocates,costs over 40% of hydrogen's energy content. Sounds great doesn't it ? See Car and Driver 10/05 pg 30 for details
