ahhhh, that would be pretty decent... I'm not too learned on rl solar panels and why they work, but would there be a need for parts to be replaced in an RL solar panel?
Yes. Photovoltaic cells, which solar panels use in large arrays to produce electrical power, have a lifespan of around fifteen to thirty years. During that lifespan, they decrease in output, until they don't produce any energy. So forcing a user to replace the "carbon plates" would be similar to requiring a replacement of the photovoltaic cell array, although I don't think that is done normally.
Another option might be solarthermal power, which is similar to what Factorization's solar system does using mirrors.