Which of the following is not a consequence of insufficient airspace in a wet location cabinet installation?

Insufficient airspace in a wet location cabinet installation can lead to several negative consequences, but improved energy efficiency is not one of them. When there is inadequate airspace, it typically results in poor ventilation, leading to issues like increased humidity and temperature. Such conditions can promote corrosion, particularly in electrical components that are prone to rust when exposed to moisture and heat.

Additionally, the accumulation of moisture and heat can lead to an increased risk of electrical faults, such as short circuits or insulation failure, as the materials may degrade more quickly under these conditions. Improper operation of electrical devices can also occur, as components may be affected by excessive heat or moisture, leading to malfunction or reduced performance.

In summary, while insufficient airspace negatively impacts the reliability and longevity of electrical installations, it does not enhance energy efficiency; rather, it poses risks that can compromise the overall function and safety of the system.