Oxidation catalysts and other emissions controls can be installed to reduce the polluting effect of diesel generation and it must also be considered that peak-shaving DR resources will displace peaking units which are the most pollution-heavy resources on the supply-dispatch curve that are also closest to load centers.

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New federal safety regulations kicking in later this year will load expensive recordkeeping tasks on companies like Penske--at the same time as tougher pollution regs require them to replace retiring four- to six-year-old trucks with units that cost 10% to 15% more.

FORBES: Magazine Article