Accommodating High Levels of Variable Generation - NERC

Appendix I: 2009-2011 Objective and Work Plan
1.2. Consistent and accurate methods are needed to calculate capacity values attributable to
variable generation.
Reliability Assessment
Subcommittee
Start Date: 2 nd Qtr. 2009 End Date: 4 th Qtr. 2010
Investigate consistent approaches for calculating resource energy and capacity associated
with variable generation for the following methods:
• Effective Load Carrying Capability (ELCC) approach.
• Contribution of variable generation to system capacity for high-risk hours, estimating
resource contribution using historical data.
• Probabilistic planning techniques and approaches needed to support study of bulk
power system designs to accommodate large amounts of variable generation.
1.3. Interconnection procedures and standards should be enhanced to address voltage and
frequency ride-through, reactive and real power control, frequency and inertial response
and must be applied in a consistent manner to all generation technologies.
IVGTF – Planning sub-group Start Date: 2 nd Qtr. 2009 End Date: 4 th Qtr. 2010
Review NERC’s Facilities Design, Connections, and Maintenance (FAC) Standard FAC-001-
0 97 to ensure that the following are addressed:
• Establish appropriate interconnection procedures and standards.
• Ensure adequate communications considering COM-002-2 98 and registry criteria.
If Standards and criteria are inadequate, action should be initiated to remedy (e.g. Standards
Authorization Request, registry criteria enhancement, etc.).
97 http://www.nerc.com/files/FAC-001-0.pdf
98 http://www.nerc.com/files/COM-002-2.pdf
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