Vanilla 1.0.3 is a product of Lussumo. More Information: Documentation, Community Support.
1 to 30 of 117
Posted By: SprocketWhilst there is an optimal peak point to do with internal losses, as long as the heating element resistance is selected such that the voltage across it at your current does not exceed the nominal cell voltage you should get pretty close to maximum power transfer.
Posted By: SprocketBut I can't see how if you choose for maximum output you will lose much efficiency when the irradiance is lower. The mismatch will mean more a bit more heat lost in the panel's internal resistance but not all that much surely?
Sure, if light levels are really low, but do we really care about that? I would quite like to see numbers for just how many watts in what circumstances.
Posted By: welshjim99Yes I agree switching the panels from 4x1 in series to 2x2 and 1x4 is possible
Posted By: welshjim99...and only 2 different elemnts in one boss doesnt give much room for power matching
Posted By: Ed DaviesSo long as the software doesn't keep clicking the relays all the time that should be fine, I'd think.
Posted By: Ed DaviesI did suggest immersions in a side-arm heat exchanger.
Posted By: Ed DaviesThe bit I'm not clear about is that if you plumb in to the feed and outlets of the tank how you make sure that there's enough resistance in the side-arm path to prevent a “short-circuit” when water is drawn off but keep the resistance low enough to ensure the thermosiphon works well enough.
Posted By: alistairmthere is a system called EMMA which transfers power to emmersion heater when there is no demand from power outlkets. Not sure if it would work on off grid system but nice piece of kit all the same
© Green Building Press