Something I previously posted in another electric boat thread:
An electric ski boat has a number of advantages and challeges.
Pro
- very quite, can talk (well, shout) to the skier
- clean (may open up lakes with gas engine restrictions)
- high torque motor means it only needs about 150 hp
- instantaneous power control: no more ABC,123 for Zero Off
- operating cost: way fewer moving parts, way less maintenance. Electricity is 1/10th cost of gas (in Canada)
Cons
-expensive. This is still the case with cars, but improving. It will take a long time for the cost to come down for ski boats. However, with the new 2019 Nautique's price, this may not be a problem. ;-) Last I heard, Tesla thinks it's close to $100 per kWh. That may changes things.
-battery capacity: it takes about 10 kWH for an 8 pass slalom set. That's no more than 10 sets per full charge fora 100 kWH battery
-charge time: industrial power could likely charge the battery in less than an hour, but it's no so easy to get this kind of power to the dock. 240V, 80amp could probably recharge a set's worth of power in 30 minutes. (I didn't do the math)
-battery tech: Tesla has the best batteries in the business but they may not be good for a ski boat which needs to maintain high output for a 30 second pass. Cars generally accelerate for a much shorter time. Different chemistry may be needed.
When an affordable electric Nautique is available, I will be first in line. Kudos for Correct Craft for getting the ball rolling.