It occurred to me yesterday that some of you may have thought about my last post talking about the Alerion 33 electric and the issues with monitoring and range as a bit negative. Well that’s not really true at all and I really mean it. We all have to understand that this is a totally new concept and some growing pains are to be expected.
Well yesterday I heard from the boat’s owner Vincent again and not only did he send me a short but cool video of the boat motoring along in a no wind situation (its so quiet its a silent movie!) he also sent along some really telling data that kind of summarizes this summer’s worth of electric propulsion. First the movie:
Its hard to believe but the boat is actually motoring. No stinking diesel clattering along here!
Now for the data…….
Here is a summary of use of the system so far:
- A total of 756 nm sailed and motored (probably 75% sail; 25% motor) since the spring
- A total of 2900 Ah consumed from the batteries
- Average discharge was 54.3 Ah
- Only 17 full charge cycles used (at this rate, I could put 89000 nm on the odometer before the batteries are used up (2000 cycles)!!)