Imbalances

Pacific Gas & Electric declared a systemwide Stage 2 high-inventory OFO for today. The tolerance for positive daily imbalances was as tight as possible at zero; the penalty for excess gas is $1/Dth.

Pacific Gas & Electric issued a systemwide Stage 2 high-inventory OFO for Friday but did not extend it to Saturday. The order had $1/Dth penalties for positive imbalances exceeding a stringent 1% tolerance.

Pacific Gas & Electric issued a systemwide Stage 2 high-inventory OFO for Saturday with $1/Dth penalties for positive daily imbalances exceeding a 2% tolerance.

Pacific Gas & Electric declared a systemwide Stage 3 high-inventory OFO for today with $5/Dth penalties for positive daily imbalances exceeding a 5% tolerance. Southern California Gas extended a similar Overnominations Day notice that had begun Thursday through at least today. SoCal’s OFO penalizes shippers for delivering into the system more than 110% of their actual usage. Violators pay a buyback tariff that is the lower of either SoCal’s lowest incremental gas purchase cost or 50% of its core subscription procurement charge.

Pacific Gas & Electric issued a systemwide Stage 2 high-inventory OFO for Saturday. Penalties were $1/Dth for positive daily imbalances exceeding what traders considered a very lenient tolerance of 11%. SoCalGas extended an Overnominations Day declaration into a second day Saturday.

Pacific Gas & Electric declared a systemwide Stage 2 high-inventory OFO for Saturday with $1/Dth penalties for positive daily imbalances exceeding a 3% tolerance.

Florida Gas Transmission continued an Overage Alert Day notice through at least Tuesday but tightened the tolerance for negative daily imbalances from 15% to 10%.

Pacific Gas & Electric issued a systemwide Stage 3 high-inventory OFO for Saturday. It carries penalties of $5/Dth for positive daily imbalances exceeding a 9% tolerance.

Florida Gas Transmission kept an Overage Alert Day notice in effect but loosened the tolerance for negative daily imbalances from 10% to 15%.