Tier 4 Generators

A Tier 4 generator refers to a type of diesel engine generator that meets the strict emission standards set by the Environmental Protection Agency (EPA) in the United States. The Tier 4 Generator regulations were introduced in 2004, and the aim was to reduce the amount of harmful pollutants emitted by diesel engines.

Tier 4 diesel generators utilize advanced emission control technologies to reduce emissions. They are designed to be more fuel-efficient and produce less emissions than previous generator models, making them more environmentally friendly.

Tier 4 generators are commonly used in applications such as construction sites, data centers, hospitals, and other facilities where reliable power is critical. They are also used in off-grid locations, remote areas, and for emergency backup power.

Tier 4 Diesel Generators are available in a wide range of sizes depending on their intended use. For light commercial or residential applications a 13.5 kW Kubota Tier 4 Generator or a 50 kW John Deere Tier 4 Generator would be ideal. For mid-size to heavy industrial applications, Americas Generators offers Tier 4 Generators up to 1250kW, like our 350kW Scania Tier 4 Generator or the 1250 kW Volvo 40’ Twin Pack.

EPA Tier 4 refers to a set of emission standards set by the United States Environmental Protection Agency (EPA) for non-road diesel engines. These standards were phased in from 2008 to 2015 and aimed to reduce emissions of nitrogen oxides (NOx) and particulate matter (PM) from non-road diesel engines, such as those used in construction and agricultural equipment.

The Tier 4 standards represent a significant reduction in emissions compared to previous standards, requiring a 90% reduction in PM emissions and a 50% reduction in NOx emissions from the previous Tier 3 standards. The Tier 4 standards are divided into two stages: Tier 4 Interim, which applies to engines manufactured between 2008 and 2014, and Tier 4 Final, which applies to engines manufactured after 2014.

To comply with the Tier 4 standards, engine manufacturers have used a variety of technologies, including exhaust gas recirculation, diesel particulate filters, and selective catalytic reduction. These technologies help to reduce emissions while maintaining or improving engine performance.