200.0 MW

Firm connected N-1 headroom

127.4 MW

The request exceeds at least one screened connected N-1 thermal limit.

Candidate: load at bus 3 · request 150.0 MW · Q 0.0 Mvar

CALCULATED · DC SCREEN

What binds firstrow 2: 2–3

Triggering outagerow 8: 1–3

Zero-request N-0 loading24%

Worst zero-request N-1 loading38%

Screened / islanding8 / 0

Flexible statusConditionally feasible · DC

Maximum candidate curtailment22.6 MW

AC confidence layerAC warning

Exact proof layerNot requested

Model coverageComplete

Why the AC warning / AC snapshot boundary: Only the 127.4 MW DC frontier was checked; the 150.0 MW request was not AC-checked at 0.0 Mvar using a fixed pq injection candidate model. All targeted AC snapshots converged. Recorded warning: outage row 8: branch row 2 reached 100.46% of RATE_A; outage row 1: branch row 8 reached 101.27% of RATE_A. The DC result is unchanged; this badge covers only the listed AC snapshots.

Conditional connection actions

Outage	Maximum candidate MW	Required curtailment	Binding element
row 1: 1–2	128.0 MW	22.0 MW	row 8: 1–3
row 2: 2–3	146.9 MW	3.1 MW	row 8: 1–3
row 5: 5–1	146.6 MW	3.4 MW	row 8: 1–3
row 8: 1–3	127.4 MW	22.6 MW	row 2: 2–3

Smallest modeled rating-relief set

Element	Total +MVA	Request-attributable +MVA	Driving outage
row 2: 2–3	+13.3 MVA	+13.3 MVA	row 8: 1–3
row 8: 1–3	+12.9 MVA	+12.9 MVA	row 1: 1–2

Better connection points

Bus	N-1 thermal headroom	Decision
1	200.0 MW	GO
2	135.1 MW	CONSTRAINED
5	131.8 MW	CONSTRAINED

Traceability, scope and assumptions

Analysis ID: 31a5ebfd762315fafd1b
Engine: MWClear 0.6.0
Engine source SHA-256: 22051e119f9ccb721d851d8f965d521e28cbe34d0bdef349ccb18a5524e2d1b9
Input SHA-256: 08a8f69e3ce86cf3fc1b69d1e369bf685d384fe3733b7c219725911659b78b91
Rating policy: RATE_A is applied to both N-0 and connected N-1 states
Selected monitored/outage rows: 8 / 8
Recorded model omissions: None recorded

Fast DC/PTDF/LODF screen using RATE_A and generator limits. Recorded preventive-dispatch policy: generator-bounds-constrained preventive dispatch minimizing the worst normal and connected N-1 branch utilization, followed by a strictly convex least-squares tie-break anchored to supplied generator PG. Candidate transfers use bounded proportional generator participation. Redispatch remains idealized within PMIN/PMAX: ramp limits, reserves, costs, and area interchange constraints are not modeled. It also excludes dynamics, protection, constructability, cost, schedule, outage probability, and 0 selected islanding outages. The optional AC badge covers only the snapshots explicitly listed in result.json. “+MVA” is a mathematical rating delta, not a construction design or price. Use this to choose where to study next, not as an interconnection approval.