2
\$\begingroup\$

After reading up on solar panels, I know that the max power that a Solar panel can supply (\$P_{mp}\$) will drop as the temperature increases. The \$V_{oc}\$ will decrease a lot more than \$I_{sc}\$ increases, so the Fill Factor will go down.

But this is the one thing I haven't been able to find an answer to. Say, \$P_{mp}\$ of a solar panel that has a temperature of 25 °C is observed at a load of 20 KΩ. Will the load where the solar panel has its \$P_{mp}\$ change at a different temperature, and if so, will it increase or decrease?

\$\endgroup\$
  • \$\begingroup\$ As a general rule, maximum power output is when the load impedance is the same as the internal impedance. \$\endgroup\$ – Janka Jun 1 '19 at 1:17
0
\$\begingroup\$

Say, Pmp of a solar panel that has a temperature of 25 °C is observed at a load of 20 KΩ. Will the load where the solar panel has its Pmp change at a different temperature, and if so, will it increase or decrease?

Without any knowledge of solar panels you can deduce that

  • If Pmp and Vmp decrease with increasing temperature and

  • Imp remains much the same, then

  • As Rmp = Vmp/Imp, R mp must decrease with increasing temperature.

| improve this answer | |
\$\endgroup\$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.