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North American Electric Reliability Council Region Margin Charts
NERC Margin Chart (US) NERC Regions Map
NERC Margin Chart for entire US
Click on a Region above to go to that Region
 

 

 

 

 

 

 

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ECAR Margin Chart
NPCC (US) Margin Chart
ECAR Margin Chart
NPCC (US) Margin Chart
ERCOT Margin Chart
SERC Margin Chart
ERCOT Margin Chart
SERC Margin Chart
MAAC (US) Margin Chart SPP Margin Chart
MAAC (US) Margin Chart
SPP Margin Chart
MAIN Margin Chart
WSCC (US) Margin Chart
WSCC (US) Margin Chart
MAIN Margin Chart
MAPP (US) Margin Chart
As these charts show, the margin between peak demand for electricity and the generating capacity to meet that demand is shrinking to nothing in most of the country. This is a crisis.

Without capacity we get blackouts. At best, brown-outs.

Capacity shown is for summer. Peak demand is non-coincident for all the utilities in the region.

Please Note: In September 1996 most of Florida became a separate NERC region, the Florida Reliability Coordinating Council (FRCC). For purposes of historical trend analysis we have included FRCC in SERC.

MAPP (US) Margin Chart

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