This article refers to the Vernier Energy Counter (VEC)

Short answer: yes, but.

Details:

The Vernier Energy Counter contains a built in 25 Ω load resistor. Depending on both the solar panel you are using and your light source, 25 Ω might be very similar to or very different from the ideal load for maximum energy output.

See: What is the best light source to make solar panels work indoors?

The best light source for solar panels is, of course, the sun. We recommend a load resistance of less than 10 Ω with the KidWind 2V/400mA Solar Panel (KW-SP2V) when used in sunlight.

Note that the Vernier Energy Counter is not meant to handle voltages in excess of ±12 V. If you have a 12 V solar panel, be sure to disconnect the solar panel from the Energy Counter when the 30 second measurement is complete. Leaving a 12 V solar panel connected to the Vernier Energy Counter in the presence of direct sunlight will overheat the Energy Counter and you will have to wait for it to cool off to be able to use it.

If you are working with Elementary School or Middle School students and experimenting with Solar Panels, you can adapt the experiments in Investigating Solar Energy (ELB-SOLAR) or Solar Energy Explorations (MSB-SOLAR) to use the Vernier Energy Counter. Omit the parts in which students use the Resistor Board to change the load to 10 Ω.