Home Depot doesn't charge shipping if you pick them up at a store. They had them for about $120 a while back but I procrastinated. Now they are $134 - still not bad. I would rather refuse a broken panel at the store than have a three way fight involving UPS or Fedex.
Oil Pan 4:
I like your thinking. Put the excess PV energy into vampire, or in my case, continuous loads. Around my house there is always water to heat. I will look for an MPPT with the ability to divert the PV energy when the batteries are in float mode.
With a few more panels I could even run a window shaker once the DHW reaches setpoint.
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