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Re: Set Up Guidance
Note, 72 cell panels are 36 volts Vmp. -Bill1 · -
Re: Partial off-grid system design questions....
Yep--You are correct. P=I*V ... You double V, you get 2x more power. Note, some of the other controllers do have other limitations (working voltage input and output; and overall power)--So always ref…1 · -
Re: Partial off-grid system design questions....
Refrigerators (and freezers) are what move you from a "small system" to a medium size... A typical efficient fridge/freezer runs 365 to >450 kWH per year--Or over 1.0 kWH per day. I woul…2 · -
Re: PV Array Sizing
It is why I like to do the naked calculations in the open... When you do spread sheets and web calculators--The details of "why" you do things get lost. You can program the calculations int…1 · -
Re: battery charging voltage
From this comment: http://forum.solar-electric.com/discussion/comment/354210/#Comment_354210 I ran across this page on why different types of batteries have different starting s.g. fills... Is pretty…1 ·
