Thursday, January 1, 2026

Extended Range Electric Vehicles (EREVs)

Extended Range Electric Vehicles (EREVs), also known as range-extended electric vehicles (REEVs) or sometimes range-extender vehicles, are a type of electrified vehicle that combines the core characteristics of a battery electric vehicle (BEV) with a small onboard generator to dramatically increase total driving range.Key Characteristics of an EREV
  • Primary propulsion — The vehicle is driven exclusively by one or more electric motors using electricity from the battery pack. There is no mechanical connection between the internal combustion engine (usually a small gasoline engine) and the wheels.
  • Range extender — A small internal combustion engine (ICE) acts purely as a generator (auxiliary power unit or APU). When the main battery runs low (typically down to 5–20% state of charge), the engine automatically starts to generate electricity, which either charges the battery or directly powers the electric motor(s).
  • Plug-in capability — Like a BEV or PHEV, it can be plugged in to charge the battery from the grid (home charger, public station, etc.), allowing regular electric-only driving for daily use.
  • Driving experience — It feels and drives like a pure electric vehicle most of the time — smooth, quiet, instant torque, one-pedal driving, etc. — with the engine only running when needed to extend range (and often at an efficient constant speed).
How EREVs Compare to Other Vehicle Types
TypeFull NameDrives wheels with electric motor?Engine directly drives wheels?Plug-in charging?Typical electric-only rangeTotal range (with fuel)Primary use case
BEVBattery Electric VehicleYesNoYes200–400+ milesSame as electric rangeFull electric, no range anxiety solution needed
EREVExtended Range Electric VehicleYesNoYes50–150+ miles (often larger battery)400–800+ milesElectric daily driving + long trips without fast-charging reliance
PHEVPlug-in Hybrid Electric VehicleYes (often)Yes (in most designs)Yes20–80 miles300–600 milesShort electric commutes, hybrid flexibility
HEV(Regular) Hybrid Electric VehicleSometimesYesNoVery short (~1–3 miles)400–600 milesFuel efficiency without plugging in
 
Li Auto L8 Pro EREV SUV 2025  ($45,560)
Advantages of EREVs
  • Eliminates most "range anxiety" for people who occasionally drive long distances or lack reliable fast-charging access.
  • Allows mostly/fully electric driving for daily commutes (cheaper, smoother, zero local emissions).
  • The engine runs less often and more efficiently than in a traditional hybrid or PHEV.
  • Many recent designs (especially in China and emerging U.S. models) achieve very high total ranges (500–900+ miles).
Disadvantages
  • Added weight, complexity, and cost from the engine + fuel system (compared to pure BEV).
  • Still requires gasoline (though much less than a conventional car).
  • Slightly less efficient on long highway trips compared to some parallel hybrids (engine not optimized for direct wheel drive).
 Jeep Grand Wagoneer range-extender (REEV)  2026  ($100,000)
Notable / Upcoming Examples 
  • Historical: Chevrolet Volt (early version), BMW i3 REx, Fisker Karma.
  • Recent / emerging: Ram 1500 Ramcharger, Mazda MX-30 R-EV, various Chinese models (Li Auto, BYD, etc.), upcoming Scout Motors trucks/SUVs, Jeep/Grand Wagoneer variants, some Hyundai and Stellantis models.
In short: An EREV is basically a battery electric vehicle that happens to carry a small gasoline generator for peace of mind on longer journeys — it's one of the strongest "bridge" technologies between full hybrids and pure EVs, especially popular where charging infrastructure is still developing.


Sunday, December 21, 2025

Ethereum (ETH) reaches a new high of $4,955 on August 24, 2025

In October 2025, Ethereum (ETH) experienced notable volatility amid broader crypto market dynamics, failing to sustain early momentum and contributing to a corrective phase.Early Month StrengthEthereum entered October on a positive trajectory, building from its new all-time high of approximately $4,950–$4,955 reached on August 24, 2025. Prices briefly pushed above $4,700 in the opening weeks, supported by:
  • Strong inflows into spot Ethereum ETFs.
  • Ongoing Layer-2 adoption.
  • Institutional interest.
  • Anticipation of network upgrades.
This aligned with historical "Uptober" seasonality and broader market optimism.
Mid-Month Pullback and VolatilityThe upward momentum faltered mid-month, with ETH retreating toward the $3,700–$4,200 range. Key factors included:
  • A massive deleveraging event in the broader crypto futures market (estimated $4B+ in liquidations around October 10).
  • Renewed macroeconomic concerns, including trade tensions and risk-off sentiment spilling from equities.
  • Reduced network activity leading to lower fee burns and increased circulating supply pressure.
Sources describe a sharp reversal after the initial rally, with prices dipping amid panic selling and leverage unwinds, though not as severe as in prior cycles.Recovery and Month-End LevelsETH staged a partial rebound in the latter half of October, grinding back toward $4,000–$4,100 levels by late month, but remained below early highs. It closed October with a net decline (roughly 10–15% lower month-on-month in some estimates), trading in consolidation as capital rotated toward Bitcoin and select altcoins.Broader Context and AftermathThe October correction marked a shift from summer euphoria, highlighting Ethereum's sensitivity to macro risks and leverage. By December 2025, ETH was trading around $2,900–$3,000 (down ~40% from its August ATH), reflecting ongoing lower highs, ETF outflows in some periods, and bearish-to-neutral technicals. Fundamentals remained supportive—staking growth, upcoming upgrades like Fusaka (December 2025)—but short-term sentiment stayed cautious amid consolidation.Overall, October 2025 represented a transition from post-ATH strength to prolonged correction for Ethereum, setting the stage for base-building into year-end.