Tag Archives: “Reciprocating Internal Combustion Engines”

EPA Refuses to Amend Its Backup Generator Rule: Demand Response Breathes Easier

Last Friday, EPA published notice that it would not be revising its regulations on backup generators in response to three petitions for reconsideration it had received after it promulgated its final rule in January 2013. The rule had sparked controversy, because EPA allowed backup generators to operate for up to 100 hours a year, though EPA did require use of ultra-low sulfur diesel fuel beginning in January 2015.… More

EPA Splits the Baby on Backup Generators: Still Allows 100 Hours Use, But Now Requires Ultra Low Sulfur Diesel

Yesterday, EPA finalized revisions to the National Emissions Standards for Hazardous Air Pollutants for stationary reciprocating internal combustion engines, or – one of my new favorite acronyms – RICE.  The biggest dispute over the rule was the extent to which it would allow backup diesel generators to run for demand response purposes.

As we had noted previously, EPA proposed last May to allow backup generators to run for up to 100 hours for demand response purposes without being subject to emissions limits. … More