Transportation: Electric Vehicles (EV) – range versus price
Most EVs with a useful range of 200 miles or more are sold primarily as higher priced luxury vehicles. EVs priced in the US$20,000 to $30,000 range are typically less…
Transportation and Energy: Electric utilities push for electric vehicle (EV) expansion to grow their businesses
Among a decline in electricity sales in the United States, electric utilities "need a new source of load growth" and "electrification of the transportation sector" is a huge opportunity. To…
Transportation: #Drone delivery of consumer packages is mostly hype but does have some specific good use cases
Most of the widely hyped drone delivery scenarios are not economically realistic and probably will not happen any time soon. But there are some targeted applications that should make sense…
Energy: “Climate Central Solutions Brief: Battery Energy Storage” – interesting background on grid-level energy storage
Batteries are likely to be an important component of grid-level energy systems. Solar PV and Wind are both intermittent power sources, plus their peak outputs do not necessarily align with…
Transportation: Effect of cold winter weather on EV range
Tesla drivers in Canada, in -10 to -20 deg C (14 to -4 deg F) temperatures, find their range drops by about 35% (some report worse) during cold weather. Rapid…
Transportation: What percent of greenhouse gas emissions come from personal vehicles?
News reports imply that our cars are the largest contributor of greenhouse gases in the U.S. In fact, the "transportation" segment is the largest producer but this includes all transportation…