They export heavily when the sun is in abundance and import heavily when it isn't. Their move to an electricity market instead of just having regulated utilities was one of the first in the nation and most of the early ones all had big issues as the experience just wasn't there in the design of the market. Now, each market region has a market monitor that looks for the things than Enron did (example: physical withholding to make prices rise). My belief is now that you should never be a first mover on those kinds of things.