PG&E Corp (NYSE: PCG) is an energy holding company whose primary subsidiary is the regulated utility, Pacific Gas and Electric. PG&E operates in 47 of 58 Northern and Central Californian counties and provides electricity and gas to over 9 million customers. As a regulated utility, PG&E has very little competition and a strong customer base. In 2009, it had 5.1 million electricity distribution customers, and 4.3 million natural gas distribution customers. Its business is stable and relatively low-risk because the utility can rely on a consistent customer base who pay rates determined by the state utilities commission.

Ultimately, PG&E’s future is inextricably tied to its relationship with the California Public Utilities Commission (CPUC). The CPUC is responsible for setting most of the regulations that govern PG&E’s business—most importantly the rates it is able to charge customers. In 2000, the CPUC set rates so low PG&E couldn’t turn a profit, which forced them into bankruptcy and contributed to the state-wide energy crisis. Since then, PG&E and the CPUC have had a better relationship, due in part to residual fears of another crisis. However, PG&E has to renegotiate its “rate-case” in 2011, so it is unclear how long the current trend will last.

(Read more at Wikinvest )