I looked at the current state of bicycle technologies and saw some nice things, but they're still quite expensive. The main ideas are to keep weight low with aluminum alloy frames, a lithium-ion battery (with motor to drive the wheels), a carbon-fiber "chain" (which doesn't break or rust or fear dirt), and an internal DaVinci-style gear hub. Look 'em up on the net or YouTube.com and there are a lot of videos and stories about them.
Super-Efficient Bicycle Drive: CeramicSpeed driven shaft drive
Here are a variety of articles I've seen over the last few months. They range from business-specific actions and products to business analyses of where the green energy world is headed to ideas for government.
Solar just hit a record-low-price in the U.S. - Earther
Natural gas markets renewable energ - Vox
China investment solar electric buses - Vox
Is it time to build a national energy grid for renewables? - Vox
Analysis reveals that the world's largest battery saves South Australia 8-9 million in 6 months - CleanTechnica
America's first big offshore wind farm sets record-low prices - RenewEconomy
Upgrading the grid to make the integration of renewables easier and cheaper - CleanTechnica
A Silicon Valley startup is giving lithium-ion batteries a much needed silicon-boost - Quartz
UK Scotland north-east Orkney Shetland Wave Power - BBC
SpiceJet to test India's first bio-fuel-powered plane - LiveMint
If Exxon-Mobil can learn to like renewable energy anyone can - TriplePundit
Groundbreaking spinning wind turbine wins UK Dyson award - The Guardian
Tesla model 3 becomes #1 best-selling car in the US - CleanTechnica
Millions of EV charging points planned for U.S. and Europe-by-2025 - Bloomberg
New carbon credits for charging stations could spur EV adoption - Axios
Coal-killing energy storage grows by 200 in US - CleanTechnica
Bombardier battery-powered electric train - Engadget
World's first hydrogen-powered train hits the tracks in Germany - Quartz
Solar panels replaced tarmac on a motorway: here are the results - The Conversation
How used electric car batteries will turbocharge the renewables revolution - ThinkProgress
Wind energy prices market growth offshore tax credits turbines technology - InsideClimateNews
Wind solar farms produce 10 percent of U.S. power in 4 mo - RenewablesNow
All-electric ships on the horizon - Bloomberg
How Wyoming wind farms help Idaho replace coal - CleanTechnica
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