Categories
-
Recent Posts
- New war and energy alliances over next resource wars
- Book review of “Siege: Trump Under fire”
- Why do people vote for Trump?
- Book review of “Pandemic Politics: The Deadly Toll of Partisanship in the Age of COVID”
- The evolution of the Republican party from 1960 to 2024: from moderate democracy to extreme authoritarianism
- Why some people are conservative and others liberal
- Book review: Bring the War Home: The white power movement & paramilitary America
- Book review: How Democracies Die
- Book Review “Conservatives without Conscience” by John Dean
- Book review of “The Power Worshippers. Inside the dangerous rise of religious nationalism”
- Fox news estranges millions of families and instills hate and fear in its cult members
- Book review of “Deer Hunting with Jesus” Best book on why people vote for Trump
- Population growth creates climate crisis, says environmental scientist
- Book review of “Democracy in Chains”, the history of how extremist Republicans stealthily stole our Democracy
- Net Energy Cliff & the Collapse of Civilization
Tag Archives: auto
Peak lithium makes transportation & electricity storage pointless
Preface. The lithium batteries in cars need electricity to recharge, but the electric grid can’t stay up with just wind and solar, that’s why natural gas is the energy storage today. Nor do pumped hydro or compressed air energy storage … Continue reading
Why is passenger rail so damned inefficient?
[ This is about passenger rail, not freight rail, which is incredibly efficient. Freight rail is efficient because to reduce aerodynamic drag and diesel fuel use (USDOT 2008), they travel on average only 23 miles per hour (to reduce aerodynamic … Continue reading
Posted in Mass Transit, Railroads, Transportation
Tagged auto, bus, mass transit, passenger, rail
4 Comments
Most energy efficient: passenger bus, rail, or auto?
Preface. Weight reduces energy efficiency, so one way to make transportation more efficient is to light-weight rail cars, buses, trucks, and cars. For every 10% reduction in weight, up to 7.6% more fuel efficiency can be gained (Joost 2012). While … Continue reading
Posted in Automobiles, Mass Transit, Railroads
Tagged auto, bus, car, efficiency, energy, mass transit, passenger, rail
Comments Off on Most energy efficient: passenger bus, rail, or auto?