I use less than 20 amps of power a day, half of which is the AIS which is always on. I only run the refrigerator during charging time, which is enough to cool the daily beer.
I can recharge each day with 45 minutes of engine time with the Balmar 100. I discharge the house bank to no more than 60 percent on the battery monitor, then return it to 80 percent.
I budget a half gallon of diesel daily for recharging, so a 20-day passage uses less than 10 gallons for electrical energy. (If hours of motoring is necessary, recharging goes to 100 percent and is "free" on the recharge budget.)
If I lingered for weeks at anchor off the grid like a proper world cruiser, I'd have solar panels. But for simple passage-making, dock-plug-to-dock- plug, using the $15,000 engine as a generator works well. And the sun doesn't have to come out.
I can recharge each day with 45 minutes of engine time with the Balmar 100. I discharge the house bank to no more than 60 percent on the battery monitor, then return it to 80 percent.
I budget a half gallon of diesel daily for recharging, so a 20-day passage uses less than 10 gallons for electrical energy. (If hours of motoring is necessary, recharging goes to 100 percent and is "free" on the recharge budget.)
If I lingered for weeks at anchor off the grid like a proper world cruiser, I'd have solar panels. But for simple passage-making, dock-plug-to-dock- plug, using the $15,000 engine as a generator works well. And the sun doesn't have to come out.