This may be a dumb question but can you install solar panels as the first part of your electrical system and work down...even if the whole thing may take a few weeks to put together. I assume they are creating current as soon as they are out in the sun. Do you need to separate the end of the wires? Do the solar panels care if their charge goes nowhere? I said it was a dumb question. But i am serious. I'd hate to do anything to damage the panels.