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![]() wrote in message oups.com... The max rating of the engines is not the point: IF the panels produced 10 kW for 12 hrs a day straight, and there was not much loss in storage, they could run on 5 kW 24 hours, which is 8 hp, and could work. (I guess...) I can tell you aren't overly familiar with photovoltaics. 10KW represents the max output when the sun is straight overhead and the temp is mild That same 10KW array will produce perhaps 5K when the sun is at a 45 degree angle and even less when the angle is less. The total wattage output of a 10KW array is probably 50-60 KW on a good sunny day, not 120KW per 24 hour day. You can't run motors and charge batteries and run electonics with that paltry output. Something's fishy here... Wilbur Hubbard The question for the real solar experts was how much can one realistically expect, i.e. how much do two 5 kW panels generate on a real day in the real Atlantic, how much is left after storing in batteries, etc.... Or maybe for the long distance cruisers: If you were adrift in this area at this time of the year, would the prevailing winds blow you over in the end? Anyone? ?, On Mar 28, 9:22 am, "Wilbur Hubbard" wrote: "mandolin2k" wrote in message oups.com... what the heck do they do at night? LOL! They claim they have a large battery bank for night time use. And they claim they have enough output from the array to both charge the batteries during the day and run the motors. The array output is only 10KW(max). The twin engines use 8KW each for a total of 16KW and if they have to charge batteries too then it seems to we they lack sufficient solar array for the job. Something's fishy here. Wilbur Hubbard |
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