Eligibility and Availability
In 2004, Guam enacted legislation requiring the Guam Power Authority (GPA) to allow net metering for customers with fuel cells, microturbines, wind energy, biomass, hydroelectric, solar energy or hybrid systems of these renewable energy technologies. In 2010, Guam amended net metering and raised the system capacity limits to 25 kilowatts (kW) for residential systems and 100 kW for non-residential systems.*
Customer-generators may be billed on a monthly basis, or with their written consent, on a quarterly, semi-annual or annual period. 12 GCA § 8501 provides that if a system has produced net excess generation at the end of the billing period the customer-generator is entitled to compensation at a rate to be determined by the Guam Public Utility Commission (PUC). Guam Power Authority's Schedule C for net metering, however, clarifies that excess generation credits will be carried forward monthly, and expire at the end of the calendar year with no compensation to the customer.
Public Law 32-095, enacted November 27, 2013, raised the net metering cap for vendors who will install solar panels at public or private schools. The law allows the Guam Dept. of Energy to enter into power purchase agreements with all schools, administrative, and ancillary buildings for up to 25 years.
GPA must provide customer-generators with a bi-directional energy meter and may, at its own expense, install additional meters. GPA may not charge customer-generators any fees above and beyond those it charges to other customers in the same rate class that do not use a net-metered energy system.
Net-metered systems must meet all applicable safety and power quality standards established by the National Electric Code, Underwriters Laboratories (UL) and the Institute of Electrical and Electronic Engineers (IEEE). The utility may not require customer-generators whose systems meet these standards to meet further requirements, install additional controls or purchase supplemental liability insurance.
*Note: the original net metering law system capacity limit was 25 kW, regardless of customer class.
|Incentive Type:||Net Metering|
|Eligible Renewable/Other Technologies:||Solar Photovoltaics,Wind (All),Biomass,Hydroelectric,Fuel Cells using Non-Renewable Fuels,Wind (Small),Hydroelectric (Small),Fuel Cells using Renewable Fuels,Microturbines|
|Applicable Utilities:||Guam Power Authority|
|System Capacity Limit:||
Residential: 25 kW
Non-residential: 100 kW
|Aggregate Capacity Limit:||1,000 total customers (excepting schools)|
|Net Excess Generation:||Monthly rollover, expires at the end of the calendar year|
|Ownership of Renewable Energy Credits:||Not addressed|
|Meter Aggregation:||Not addressed|
|Name:||Guam Public Law 27-132|
|Name:||Guam Public Law 30-141|
|Name:||Guam Public Law 32-095|
|Name:||12 GCA § 8501|
|Name:||Guam Power Authority Schedule C|
|Organization:||Guam Energy Office|
548 North Marine Corps Drive
Tamuning GU 96913
This information is sourced from DSIRE; the most comprehensive source of information on incentives and policies that support renewables and energy efficiency in the United States. Established in 1995, DSIRE is operated by the N.C. Clean Energy Technology Center at N.C. State University.
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