MPPT Controller Needed?
I keep going back and forth on adding solar to the TT...... DS works for a company installing residential and commercial solar systems. He got me the specs on one of the panels they use: Pmax = ...
Forum Discussion
rjxj wrote:
I would think about building a system based on what you may want some day vs a part that you can get a deal on now.
That's the thing - most people don't know what they may want some day.
Energy audit goes first. There are dozens of load calculators. Or use battery monitor if you have one.
Then - bank size and array size, then - controller. If panels that are on sale, fit your criteria, then you are in luck. If not, then man up and pay. Panels - even at fair market price - are less than a half of total parts cost.
Multiply the results of audit or array size by 1.3-1.5 to account for possible future needs, and try being honest when considering how often you park in shade. PVWatts Solar Calculator will tell you average monthly harvest for a given array and given location, divide by 30 for a daily harvest. This assumes no shade.
