A new wave of electric ferries arrives in the US, some on hydrofoils

The Guardian reports on a wave of electric ferries in the US: Vessev builds hydrofoil boats that cut drag by about 66%, while San Francisco's ferry operator plans to add four battery-powered vessels over two years as part of a roughly $500 million electric overhaul. Candela already runs electric hydrofoil ferries in Stockholm, and Norway has ordered 20 of its boats.

• Vessev says hydrofoils cut drag by about 66%
• San Francisco to add 4 electric ferries over two years
• The city's electric ferry overhaul is worth about $500 million
• Candela claims up to 80% lower energy use; Norway ordered 20 boats