Yes. Or is it no.
I can not say if the PVs are good.
You said 17.99V @ 0.02A.
But WHAT is the LOAD for testing?
I just tested a stepper motor.
At 51VDC and over 100ma.
At 12.9VDC into a battery it was 0.039A.
The first numbers with no load is 5.1W.
The REAL watts is 0.5031.
There is a place where the load
(knowing the resistance and the amps or the volts)
actually equals the power.
A perfectly good PV could have similar numbers to what you have given.
An example with just the PV and the meter.
PV to meter set to Vdc=1,000,000V.
PV to meter set to Adc=1,000,000A.
Either way, it is '0' watts made.
Watts is equal to amps X volts.
W=AxV (or P=IxV)
W=0A x 1,000,000V= 0 watts.
W=1,000,000A x 0V= 0 watts.
There must be a known load or all of the numbers are useless.
I would use a 12V battery at 12.6V connected to the PV, but I have some here.
Maybe connect it to your car battery and test the amps?
G-