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Hydrogen Trains, Upgrading A Water Heater, Cheap Solar — CleanTechnica Top 20

Another week has flown by and we’ve got another roundup of our top (most popular) stories of the week. This past week, the interest (and content) was all over the map, as it was last week. Hydrogen trains in California, the various tech options on the market when upgrading your water heater, and the US Department of Energy’s intention to help lower costs on the cheapest electricity in history were all hot topics. Scroll down below for more.

hydrogen fuel cell locomotive California

Hydrogen fuel cell locomotive conversion. Image courtesy of Sierra Northern Railway.

  1. All Eyes On $4 Million Diesel-Killing Hydrogen Locomotive In California
  2. Upgrading A Water Heater: Heat Pump, Solar, Or On Demand? The Tech & The Pros & Cons Of Each
  3. Solar Is Cheapest Electricity In History, U.S. DOE Aims To Cut Costs 60% By 2030
  4. Watch: World’s Largest Casting Machine in Action at Tesla’s Fremont Factory
  5. Slash Solar Prices 60%? Not With The U.S. Plan
  6. Buffett’s Plan To Fix Texas Energy Grid Includes 10 New Peaker Plants Owned By Buffett
  7. Volkswagen ID. Buzz Delivery Timeline Update
  8. MIT Takes Deep Dive Into Dropping Lithium-Ion Battery Costs
  9. Electric Chill: My Review of the Volkswagen ID.4 
  10. A Volkswagen T2 Camper Van’s Electric Conversion — Part 6
  11. Tesla Semi Not Coming Till 2022 (or Later) Due to Lack of Battery Cells
  12. Tesla & Lucid: The Similarities & Differences
  13. Chevron Allegedly Holds A Man In His House For Almost Two Years
  14. A Tesla Model 3 With A Solar Roof
  15. Tesla Cofounder JB Straubel Aims To Solve A Key Problem Of E-Bike Batteries
  16. Solar, Wind, Coal, Nuclear, & Nat Gas US Electricity Generation Changes 2010–2020
  17. Diving Into Ark Invest’s Tesla 2025 Analysis
  18. Groundbreaking H3X Motor Brings Electric Aircraft One Step Closer To Reality
  19. Pepsi Shares An Update On Its Tesla Semi Order
  20. The Jackery Explorer 1500 Solar Generator Enables Exciting New Possibilities
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Written By

Zach is tryin' to help society help itself one word at a time. He spends most of his time here on CleanTechnica as its director, chief editor, and CEO. Zach is recognized globally as an electric vehicle, solar energy, and energy storage expert. He has presented about cleantech at conferences in India, the UAE, Ukraine, Poland, Germany, the Netherlands, the USA, Canada, and Curaçao. Zach has long-term investments in Tesla [TSLA], NIO [NIO], Xpeng [XPEV], Ford [F], ChargePoint [CHPT], Amazon [AMZN], Piedmont Lithium [PLL], Lithium Americas [LAC], Albemarle Corporation [ALB], Nouveau Monde Graphite [NMGRF], Talon Metals [TLOFF], Arclight Clean Transition Corp [ACTC], and Starbucks [SBUX]. But he does not offer (explicitly or implicitly) investment advice of any sort.


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