Read our coverage of the technology sector in Seattle, the Puget Sound area and Northwest. We follow startups and venture capital in fields such as cloud services, on-demand markets, supercomputing, enterprise software, gaming and virtual reality. Topics include Uber, Zillow, Redfin, Avvo, Vive, Oculus, Tableau, Zillow, Expedia, Cray, T-Mobile, Valve, Inrix, and of course Microsoft and Amazon.

Electric-bus startup Proterra shifts into higher gear

The first Proterra electric bus built at the local manufacturing plant in Walnut, Calif., on June 13, 2017. (Marcus Yam/Los Angeles Times/TNS)

Improved battery technology is increasing the range and lowering the cost, but the emissions-free vehicles still face stiff competition from natural gas. And Silicon Valley-based Proterra has a tough rival as well — China’s BYD, which also builds electric buses in the U.S.

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