Quick Test of Eco-Worthy MPPT Controller
Ordered it on 3 Oct arrived at the door 23 Oct free shipping. Controller rated to 42V so watch that. EG I have it on one 230w panel, Voc 37v at 25C, so would be more Voc at cold temps. Not ab...
Forum Discussion
This Normal Operating Cell Temperature (NOTC) spec is something I have not noticed before in the specs, but it is there.
My Sharp 130w says 47.5C, my newer Hanwha 230w panel is 45C + or - 2C. The spec for the newer 235w replacement for their 230w is 45C + or - 3C
Somewhere in the recent threads there was a set of specs that gave the ratings for NOTC which are lower than for STC so I got the idea they are softening us up to accept lower performance :(
The 12v Sharp still gets me STC Isc in the summer, but with MPPT being voltage dependent so much, paranoia suggests "they" want you to get used to lower MPPT amps than you expected and call that "normal."
My Sharp 130w says 47.5C, my newer Hanwha 230w panel is 45C + or - 2C. The spec for the newer 235w replacement for their 230w is 45C + or - 3C
Somewhere in the recent threads there was a set of specs that gave the ratings for NOTC which are lower than for STC so I got the idea they are softening us up to accept lower performance :(
The 12v Sharp still gets me STC Isc in the summer, but with MPPT being voltage dependent so much, paranoia suggests "they" want you to get used to lower MPPT amps than you expected and call that "normal."
