Electrical installation in Moon – (2001) our home 2012 —>
revised – April 2016
Electrical installation in Moon is designed and installed by Bakker Jacht Electro in Holland, and are almost “industrial” standard. All consumers have separate fuses and the 35 more frequent have circuit breakers at the nav station.
Moon is a “220 boat” meaning stow, oven, water boiler and bread maker runs on 220 volt. No propane in Moon.
The rest of electrical runs on 24 volt DC except navigation instrument, VHF, HF, and AIS that runs on 12 volt DC.
Electricity is produced by means of alternators on the main engine and a Sterling generator. Both producers also heat the boats water borne heating system by their cooling system.
No solar panels or wind generator.
In high latitudes when we use the Refleks furnace we cook a lot on its cooking plate and then our electrical consumption is almost like a “propane boat”. Consumption during sailing is mainly the autopilot (24 v) and nav instrument (12 v). The hydraulic centerboard consume very little, mainly because it is seldom altered.
When we use our wind wane, Wind Pilot Pacific 2, we use only 12 volt to the nav instrument. All nav light are LED and consume next to nothing although they are the stronger ones for 24 m boats. Aqua Signal 43, very bright and effective.
Water maker runs on 24 volt and consume 20 Amp producing 55 l/h.
But we make water only when we run the engine or the genset.
Moon has great surfaces on deck and superstructure, but because we have slab reef on the main we use all areas and can’t have solar panels. To use the life lines for solar panels as we did on our previous boat seams wrong now that we have a boat for any wind and swell conditions. And most important, having a 220 boat solar panels produce only percentage of our needs.
To produce 220, Moon has two Victron 2000W/50 Amp inverter/chargers which together can deliver 6000W during a short while and 4000 as long as there are juices in the batteries. When we have shore power a Victron isolation transformer transform the voltage to 220 whatever voltage the shore power carry. Japan has 100 volt!
If the shore power carry a small fuse e.g 6 Amp, we charge the battery bank with a smaller charger, a Victron Skylla, 25 Amp 24 volt and then we feed the 220 in the boat by using only the inverters, disconnected from shore power. Very good solution, especially where shore power has 110 volt and we have cabling for 220. Using the smaller charger means that we don’t overheat our cables.
During our repair and upgrade we changed all halogen lamps to LED.
The boat has a 24 volt system and we installed voltage stabilizers 30-12 volt on all 8 fuses to the LED’s.
We went from 20 Amp to 2 Amp with all nearly 40 spotlights on. The old halogen created a lot of heat which in practice made them blow the bulbs and give Moon quite much extra heat, not so good in the tropics.