Regulated utilities remained stable last year overall, according to the companies' 2010 financial reports. Pacific Gas & Electric, however, is on the hook for about three-quarters of a billion dollars as a result of last year\u2019s natural gas explosion in San Bruno Southern California Edison notes it\u2019s making multi-billion dollar annual investments in infrastructure--on which it may obtain up to an 11.5 percent rate of return. For Sempra utilities, income remained about the same between 2009 and 2010. Other highlights of utility financials for the full year and the last quarter 2010 include: PG&E Corp.--The utility\u2019s parent company, reported $1.1 billion in net income for 2010, compared to $1.22 billion in 2009. The parent company posted $250 million in fourth quarter 2010 earnings, compared to $273 million the same time in 2009. For the fourth quarter, PG&E posted $250 million in earnings. For the fourth quarter 2009, the utility reported $263 million in earnings. The company has spent $282 million for costs arising from the San Bruno blast that left eight dead, according to PG&E Corp. chief financial officer Kent Harvey. It plans to spend close to $760 million to compensate for the damage, the exact cause of which remains under investigation. \u201cSmart\u201d meter installations are also an ongoing cost to the utility\u2019s shareholders. According to the company, it has reserved $36 million for smart meter installation investments it does not expect to be covered by ratepayers. \u201c[There\u2019s] higher cost for customer communication and outreach,\u201d than estimated, said Harvey. \u201cPrior industry experience indicated minimal outreach was required. But we have learned that is insufficient for our customers and we\u2019ve committed additional resources.\u201d Several munis have fought the installations, including Marin and Santa Cruz Counties because of health and privacy concerns about the wireless meters. Harvey also noted the higher price of using digital meters\u2019 output. \u201cWe\u2019re dealing with more complex billing data.\u201d PG&E added that it\u2019s working on developing three sites in Fresno County to install 50 MW of utility-owned photovoltaic generation. Southern California Edison--Edison International, the parent company of the utility, reported net income of $1.256 billion last year. In 2009, it was $945 million. For the fourth quarter 2010, the parent company posted $166 million versus a fourth quarter 2009 report of $213 million. Of that, the utility\u2019s income for 2010 was $1 billion. In 2009, it was $856 million. For the fourth quarter, the utility reported $181 million. In 2009 for the same quarter it was $172 million. Of a planned $15.6 billion to $17.5 billion capital spending plan over the next four years, Edison spent $3.8 billion on investments last year. That included replacing a steam generator at its San Onofre Nuclear Generating Station, installing digital meters, and building new transmission lines, said Ted Craver, chief executive officer. The company plans to spend between $4 billion and $4.4 billion per year on capital outlays. The annual figure includes a reduction in investments in solar rooftops, according to Edison\u2019s management. Sempra--The parent company of utilities San Diego Gas & Electric and Southern California Gas reported full-year 2010 income at $739 million. In 2009, it was $1.12 billion. Sempra posted $280 million in income for the fourth quarter last year, compared with $288 million in the same quarter in 2009. SDG&E reported full year earnings for 2010 at $369 million. In 2009, net income was $344 million. The utility posted $105 million in the fourth quarter 2010. In 2009, the utility posted $67 million in net income for the same quarter. SDG&E\u2019s Sunrise transmission project is under construction, with about $600 million of the $1.9 billion tab spent, according to management. SoCal Gas posted $286 million for the year 2010. In 2009, earnings were $273 million. For the fourth quarter, SoCal Gas was about even, posting $75 million in the last quarter 2010, compared to $74 million at the same time in 2009. Sempra\u2019s unregulated business, Sempra Generation, posted $43 million in fourth quarter 2010 earnings, compared to $45 million during the same time in 2009. Sempra Generation has solar, as well as traditional generation. Its 48 MW solar facility, Copper Mountain, in Nevada, began operations with a power purchase agreement with PG&E late last year. Sempra LNG, another unregulated affiliate, reported $18 million in income for the fourth quarter. This liquefied natural gas company, with a facility in Baja California, posted $35 million in income for the fourth quarter 2009. The Costa Azul terminal, which opened in 2008, is tied up in litigation. Opponents are trying to shut it down.