CNG Environmental and Economic Benefits Flashcards

Compared to gasoline vehicles, CNG vehicles typically produce approximately what percentage less carbon monoxide (CO)?

Answer: 70–90% less

CNG combustion is cleaner and more complete than gasoline, resulting in 70–90% lower carbon monoxide emissions.

Which U.S. Department of Energy program provides funding and resources to support CNG and alternative fuel vehicle deployment?

Answer: Clean Cities Coalition Network

The DOE's Clean Cities Coalition Network supports adoption of alternative fuels including CNG through funding, technical assistance, and stakeholder coordination.

Which statement best describes the energy security benefit of CNG for U.S. fleet operators?

Answer: CNG is predominantly domestically sourced, reducing dependence on imported petroleum

Because natural gas is primarily produced domestically in the U.S., CNG provides insulation from geopolitical disruptions that affect imported oil prices.

What environmental certification can CNG vehicles receive to qualify for High Occupancy Vehicle (HOV) lane access in some U.S. states?

Answer: EPA Green Vehicle Guide Certification and state-issued Clean Air Vehicle stickers

States like California issue Clean Air Vehicle (CAV) stickers to qualifying low-emission vehicles including CNG vehicles, granting HOV lane access.

A CNG fleet's 'well-to-wheel' emissions analysis includes which phases of the fuel lifecycle?

Answer: Extraction, processing, distribution, and combustion in the vehicle

Well-to-wheel analysis accounts for all greenhouse gas emissions from natural gas extraction through final combustion, providing a complete lifecycle picture.

Which financial instrument allows CNG fleet operators using Renewable Natural Gas to generate revenue by selling environmental attributes?

Answer: Renewable Identification Numbers (RINs) under the RFS

Fleet operators using RNG-sourced CNG can generate and sell RINs under the EPA's Renewable Fuel Standard, creating an additional revenue stream.