Yes people just need to figure out what there going to use the electric power for, a hours trolling or a day trip or like me a multi week trip ? Then make it happen :-) Solar can be really cool :-) My little electric boat .... https://sites.google.com/site/serenitysolarcanoe/
On Tue, May 12, 2015 at 2:20 PM, Jason Taylor jt.yahoo@jtaylor.ca [electricboats] <electricboats@yahoogroups.com> wrote:
If you're in protected waters, such as a lake or river, and you tend to stay close to home port, you can get by with a "1-hour" pack. That is a pack whose kWh rating is the same as the propulsion power rating. In my example, I have a 5kwh battery feeding a 5kw propulsion package. For me to go any further than 12nm from my slip requires passing through locks, lift bridges and strong currents. This means I bring a portable gas generator.If you regularly go cruising for extended periods, then a 2-hour pack or more would be more appropriate. Add to it 0.1C of solar panels (500W in my case -- 2.5-3kwh/day) and you start looking at full autonomy where you only need land for human reasons.Cheers,/Jason
On May 10, 2015, at 04:38, sstuller@netzero.com [electricboats] <electricboats@yahoogroups.com> wrote:A 130 watt solar panel will give you about 500 watt-hours per day i.e. annual daily average. That's about 15 KWH per month. If you have a two KWH battery bank and double its' capacity you will have a four KWH bank. Adding another 130 watt panel will increase your monthly output to 30 KWH. Clearly adding solar panels is far more effective than increasing the size of your battery bank. So why is there so much obsession with batteries when the real power comes from the panels. Thanks.
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Posted by: Tommy Boy <tommy033107@gmail.com>
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