A security guard blocks the entrance to a home on Bennett Lane in Calistoga. PG&E filed legal papers suggesting that third-party electrical equipment, not the company’s, may have been the cause of the deadly ... more A security guard blocks the entrance to a home on Bennett Lane in Calistoga. PG&E filed legal papers suggesting that third-party electrical equipment, not the company’s, may have been the cause of the deadly Tubbs Fire.

Facebook Chief Operating Officer Sheryl Sandberg (left) and Wang Xin, who holds the same post at Sohu, in 2013 in Beijing. Facebook Chief Operating Officer Sheryl Sandberg (left) and Wang Xin, who holds the same post at Sohu, in 2013 in Beijing. Women in Didi Chuxing’s leadership program for women attend a workshop on how to better handle challenges in work and life.

Save tons of wasted time on a computer by making use of a list of shortcuts to those sites you want quick access to. Save tons of wasted time on a computer by making use of a list of shortcuts to those sites you want quick access to. OK, so you’re no techie, but your expertise does go beyond “turn it off and turn it back on.” Still, you can feel overwhelmed with tweets and likes and hyperlinks, and sometimes your smartphone makes you feel like a half-wit.

Store owner Brett Lamb holds up a shoe for a customer at Fleet Feet Sports in San Francisco. He says people who buy items online may return them to the store in person to avoid packing and a trip to the post ... more Store owner Brett Lamb holds up a shoe for a customer at Fleet Feet Sports in San Francisco. He says people who buy items online may return them to the store in person to avoid packing and a trip to the post office.

Snacks and beverages are available at vending machines inside the Tesla Supercharger customer lounge in Kettleman City. Snacks and beverages are available at vending machines inside the Tesla Supercharger customer lounge in Kettleman City. Tara Nader (left) and Anoosh Mostowfi, both 59 and from Saratoga, take a break in the Tesla lounge during a road trip home from Los Angeles this month.

Anuj Gupta, Civil Maps co-founder, activates a lidar sensor before a road test in Albany last year. Since then, the sensors have rapidly gotten smaller and more reliable with the ability to “see” farther. Anuj Gupta, Civil Maps co-founder, activates a lidar sensor before a road test in Albany last year. Since then, the sensors have rapidly gotten smaller and more reliable with the ability to “see” farther.

Waymo’s self-driving Chrysler Pacifica minivans are now operating in Arizona without backup drivers. Soon they’ll add passengers. Waymo’s self-driving Chrysler Pacifica minivans are now operating in Arizona without backup drivers. Soon they’ll add passengers. GM’s San Francisco Cruise division is testing more than 100 vehicles here, getting ready to meet GM’s goal of big fleets of robot taxis by 2019.

Some of the estimated 400,000 people who ordered Tesla’s new Model 3 sedan are about to receive quite a Christmas present.Tesla confirmed Friday that Model 3 deliveries to reservation holders who are not Tesla employees are beginning to take place. The electric car company, based in Palo Alto, is expected to release fourth-quarter Model 3 production and delivery numbers in early January.

PG&E Corp., the parent company of Pacific Gas and Electric Co., warned investors Wednesday that it will stop issuing dividends due to the possibility that the utility will be held liable for October’s deadly Wine Country wildfires, which caused more than $9 billion in damage. PG&E Corp. will suspend dividends on its common stock beginning with the fourth quarter of 2017.

Condos at the Lumina Towers are on sale for $935,000 to over $5,495,000. The new tax bill could have some impact on high-end housing prices. Condos at the Lumina Towers are on sale for $935,000 to over $5,495,000. The new tax bill could have some impact on high-end housing prices. 271 Frederick St., a three-bedroom condo, was listed for $1.695 million this summer. Interest on mortgages issued after December 15 for more than $750,000 won’t be fully deductible under the new tax bill.