In October 2006, a draft regulation was published in Chile’s national gazette that would set emission limits in the Santiago Metropolitan Region for new and existing stand-by and emergency electricity generator sets powered by internal combustion engines. The regulation would be applicable to units rated at 20 kW or more electrical output. Publication of a final rule is expected in 2008. The proposed limits are outlined below.
| Application | Nominal Power, P | PM | NOx | CO | THC | |
|---|---|---|---|---|---|---|
| Existing Generators | Prime Power | 20 kW ≤ P < 300 kW | 45 | 5,000 | 600 | 400 |
| P ≥ 300 kW | 5 | 5,000 | 600 | 400 | ||
| Emergency | P ≥ 150 kW | 180 | - | - | - | |
| New Generators | Prime Power | 20 kW ≤ P < 300 kW | 45 | 2,900 | 600 | 400 |
| P ≥ 300 kW | 5 | 2,900 | 600 | 400 | ||
| Emergency | P ≥ 20 kW | 75 | 2,900 | 600 | 400 |
Emissions would be measured at rated conditions, converted to standard conditions (25ºC and 1 atm) and corrected to 5% O2 by volume.
Compliance for existing generators would have to be demonstrated within 1 year of the date that the regulation enters into force. Compliance for new generators would need to be demonstrated with 60 days of registration with the regional health authority.