solarfather
New Member
- Joined
- Apr 28, 2020
- Messages
- 38
I'm thinking of getting some cheap 250W panels and will be using some in smaller systems (setups that would have used 100W, but the 250W will cost me 1/3 the price of new 100W panels). If I block off half of the panel will all the specs be halved so as to not overload my system?
eg. Is this a reasonable approximation? And how would best to block off the panel?
Open circuit voltage (VOC): 37.6 V -----> ~18V?
Max power voltage (VMP): 30.3 V ------> 15V?
Short circuit current (ISC): 8.85 A -------> 4.42A?
eg. Is this a reasonable approximation? And how would best to block off the panel?
Open circuit voltage (VOC): 37.6 V -----> ~18V?
Max power voltage (VMP): 30.3 V ------> 15V?
Short circuit current (ISC): 8.85 A -------> 4.42A?