WHAT'S NEW:

No recent state activity has been identified.

AIR EMISSIONS REGULATIONS:

Air Quality Status	1 area is in moderate nonattainment for PM-10. EPA's Nonattainment Areas
Major Source Threshold	100 tons per year of any criteria pollutant for attainment and nonattainment areas.
Minor Source Permitting Exemption	None
Minor Source Treatment	Case-by-case BACT
Emergency Generating Limits	500 hours per year

DE MINIMIS EXEMPTIONS

There are no fixed exemption limits. The state does have the ability to waive requirements based on impacts and emission rates on a case-by-case basis.

MINOR SOURCE PERMITTING

The applicant must first call the agency or write a letter of intent. If the unit is very small (no numbers were given) applicant may be exempted. If the applicant is on the borderline of a threshold and requirements are not clear, officials will require a general application. Based on this application the state will determine if a BACT analysis is necessary. Typically BACT will be required for engines that do not meet a NOx emissions rate of 1.0 g/hp-hr (>100 hp) or 2.0 g/hp-hr (<100 hp). The state does not have a BACT cost threshold, rather they will supply some emission limits to attempt and the applicant calculates the cost of achieving each limit. The state will then decide what it considers reasonable based on past permits. Natural gas engines have recently been permitted at 1 g/hp-hr for NOx and CO. The permit issued is a construction permit. All units are supposed to obtain an operating permit, but the state is behind in the process, so many units use their construction permit instead. Construction permits require a 30-day public comment period and the entire process is likely to take around 120 days.

MAJOR NSR/PSD PERMITTING

A potential to emit 100 tons or more of any criteria pollutant triggers both PSD and NSR. The state permitted a 3,721 hp turbine compressor engine at 25 ppm for NOx and 50 ppm for CO.

TREATMENT OF EMERGENCY ENGINES

Applicant must submit a letter describing emissions, location and size of the unit. The unit cannot operate more than 500 hours per year for emergencies and maintenance only. If the potential to emit at 500 hours per year triggers Title V, controls will be required. If not, the applicant will likely receive an exemption that assumes the unit will follow the specifications in the original letter submitted to the department.

SPECIAL ISSUE:

The state is having a boom in coal-bed methane production. In order to deal with permitting these units the state has established a general permit for diesel, natural gas and propane engines that do not meet a NOx emissions rate of 1.0 g/hp-hr (>100 hp) or 2.0 g/hp-hr (<100 hp).

lso, the state has a specific permitting program for oil and gas production facilities. Uncontrolled natural gas-fired engines must meet NOx limits of between 10.0 g/hp-hr – 10.9 g/hp-hr based on whether the engine is a 2-cycle or 4-cycle lean or rich burn engine. CO and Total Organic Compound (TOC) limits also apply. Specific limits can be found in the Oil and Gas Production Facilities Permitting Guidance Manual

SITING REQUIREMENTS FOR NON-UTILITY GENERATORS:

Although onsite electrical generators do not fall under the jurisdiction of the Wyoming Public Service Commission, they do need to obtain several permits from the Wyoming Department of Environmental Quality. These permits regulate air and water emissions. Any hazardous chemical or waste may also be regulated. The socioeconomic impacts of construction are considered by the Industrial Siting Division.

BUILDING, ZONING AND FIRE CODES:

Building Codes: Wyoming enforces a statewide, mandatory building code. This code is based on the 2006 IBC with some amendments. Local jurisdictions may adopt more stringent amendments. [1]

Energy Codes : Wyoming specifically does NOT enforce the IECC portion of the 2006 IBC. The 1989 Model Energy Code is approved for adoption by local jurisdictions. A very few localities have adopted more stringent energy codes. [2][3]

Fire Codes: Wyoming enforces the 2006 IFC as a mandatory statewide minimum. [4]

• State Fire Marshal

Zoning: Zoning and planning happens at the local level. Check with each jurisdiction regarding their zoning codes.

Resources (information may not be as current as provided above)

A general overview of each state’s enacted codes can be found HERE.

The International Code Council Adoption page gives state-by-state adoption status of specific ICC codes, as well as information about code adoption by some municipal governments within that state.

Information about energy codes can be found at the DOE’s Building Codes for Energy Efficiency page or at the Building Codes Assistance Project

INTERCONNECTION REQUIREMENTS:

Wyoming has interconnection requirements only for net-metered systems, up to 25 kW in capacity, that use solar, wind, hydropower, or biomass resources.

Systems must comply with NEC, IEEE, and UL standards, and customers must install an external disconnect switch. Additional liability insurance is not required.

All utilities in the state have their own interconnection agreement forms modeled after the two-page net-metering agreement developed by Rocky Mountain Power (PacifiCorp).

Wyoming Public Service Commission
700 West 1st Street
Cheyenne, WY 82002
Don Biedermann
Phone: (307) 777-5747
Fax: (307) 777-5700
E-Mail:dbiede@state.wy.us

EXIT FEES:

No state exit fee policy has been identified. Please contact the Wyoming Public Service Commission and the local utility for more information.

UTILITY STANDBY RATES:

Wyoming does not have a statewide policy on standby rates. Relevant provisions for Wyoming utilities are summarized below.

Rocky Mountain Power (PacifiCorp) - Schedule 33: Standby service is provided through a contract with the utility. A customer charge and a reservation charge are assessed every month based on the contract demand. Actual usage is based on energy charges and a demand charge that is based on the two maximum demand of the month with a 12 month ratchet. There is a very high penalty for exceeding the contract demand. Rate available at: http://www.rockymountainpower.net/New_Auto_Index/New_Auto_Index2568.html