NEMSEC case studies
NEMSEC · Put your knowledge to work in context.
NEMSEC is a certification aimed at professionals who work at the intersection of energy markets and security: market surveillance analysts, compliance and regulatory staff, settlement and scheduling specialists, risk controllers, and the IT and OT security people who protect market-facing systems. It is an independent credential, not an official qualification of any market operator, regulator, or exchange, and this page is study material rather than an accredited program. The NEMSEC case studies are 5 cases and about 2,994 words.
1Tie-Line Congestion and Inframarginal Rents in a Two-Zone Dispatch
Northbridge system has two load zones, A and B, connected by one 500 MW tie-line. Demand is 650 MW in A and 1,200 MW in B; B also has 100 MW of price-taking wind.
538 words, about 3 min2Paradoxically Rejected Block Order in a Day-Ahead Auction
In a single-hour day-ahead auction, demand is 850 MW plus one block bid from RetailCo: buy 100 MW at a limit price of €75/MWh, all-or-nothing. Supply offers are G1 800 MW at €40/MWh, G2 100 MW at €60/MWh, and G3 100 MW at €80/MWh.
544 words, about 3 min3Late Affiliate Trade Reporting and Round-Trip Trades
Helios Trading is a licensed electricity supplier and trading firm. At 14:02 CET it executes a 200 MW baseload bilateral contract for next-day delivery with its affiliate, Orion Generation, at €68/MWh.
657 words, about 3 min4Pivotal Supplier Rebid and Suspected Physical Withholding
Aster Power owns 1,200 MW of gas and coal capacity in a 4,000 MW regional market. A 500 MW interconnector trips, leaving 3,500 MW available.
631 words, about 3 min5Compromised API Key, Invalid Capacity Offer, and Settlement Exposure
Solaris Aggregation operates a 200 MW wind farm and submits day-ahead offers through a third-party API. At 11:40, an attacker uses a stale API key, disabled at 11:55, to submit a 300 MW supply offer at €0/MWh for the 18:00–19:00 delivery hour.
624 words, about 3 min