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Old 05-12-2015, 08:50 PM   #51
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I don't think its impossible. At 170kwh to go 300 miles that's 0.5666kwh\mile so 15kwh would get you 8.5 miles. If, however you park for several days at a time like most rv owners then things look far more possible. At 15kwh\day that's 10 days or so for a full charge. That's eminently possible.
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Old 05-12-2015, 08:53 PM   #52
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Do you have a budget for the battery that big?

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Old 05-12-2015, 09:00 PM   #53
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Lol. I don't have space for one that big!

I'm thinking of starting with just plug in while I get everything sorted out then adding batteries then solar panels.
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Old 05-12-2015, 09:06 PM   #54
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There are stores here with free electric car charging stations.

If your battery is big enough, you should be able to go for weeks.

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Old 05-12-2015, 09:07 PM   #55
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That's sure the truth. In another of the articles I read about that bus at the University, a representative from the Wave charger people mentioned that what makes their charger so great is that it enables shrinking the battery pack from one weighing 10,000 pounds to merely 2,500 pounds. That's a lot of battery!
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Old 05-12-2015, 09:09 PM   #56
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That's an interesting idea. I'm not yet comfortable driving my bus so I tend to stay out in the sticks with it. Truth be told, its been parked for the last 2 months.

I'm still working on the interior and also dabbling with recycled cooking oil.
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Old 05-12-2015, 10:13 PM   #57
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this guy has two 85 Kwh powerpacks to power his home. the video gives you an idea of how big they are. I wonder how many could fit under a bus?
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Old 05-18-2015, 10:22 PM   #58
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Generally, PV solar panels are angled at sun. Usually within 10 degrees of your latitude. There is an index of how many solar hours obtained per day. So a 100watt panel, angled correctly, may get 200-300 watts per day. You may be able to build a frame similar to a luggage rack on roof that would protect panels when driving and allow them to tilt at sun when parked. But tilting on one axis would mean parking bus parallel to suns track.
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Old 05-19-2015, 08:25 AM   #59
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Post Solar hot water, solar hydronic heat info-sheets; diesel hot water/heat

From another thread

Diesel hot water and heat:
DickinsonMarine.com - Hot Water Coils

Solar hot water and heat (look through their library and manuals... LOTS of good info here)
Radiant solar heating systems from Radiantec
http://www.radiantsolar.com/pdf/fundamentals.pdf

They have info sheets for all combinations of using solar water heaters with water tanks, heat exchangers, water heaters and hydronic heating. Both in closed/open or direct/indirect combinations.

Long story short- at the least, the solar HW heater boosts the temp of the water in your tank so you need less energy to bring the water up to temp with a water heater. Same concept with hydronic heating. Even if it doesn't fully heat your system, it takes a lot of the load off your electric load for heating.
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Old 05-26-2015, 11:29 AM   #60
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Just wanted to point out that the major benefit of the flexible solar panels is not necessarily that they flex but that they are light weight and VERY durable. Walking on them is not a problem.
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