The decision on the table
Which switches to open and close on a feeder to minimise losses while keeping every customer supplied. A combinatorial problem that grows quickly with the number of buses.
Energy · utilities
Distribution-grid reconfiguration on a 69-bus feeder
Switch reconfiguration on a 69-bus distribution network run on a superconducting quantum processor through our platform network. The optimum was found more than seven times as often as with the unoptimised quantum workflow; the baseline is a quantum workflow, not a classical solver. The scale at which this would beat classical methods, about 230 buses, is a projection and has not been shown.
Headline result
69-bus network
more than seven times the probability of finding the optimum, 69-bus network
Platform networkMeasured on quantum hardware
What we did, with proprietary methods
The reconfiguration was encoded for a superconducting processor and run with and without the error-suppressing workflow, so the gain is measured against the same device running plainly.
What it was worth
more than seven times the probability of finding the optimum, 69-bus network
The optimum found far more often on the same machine
- Baseline
- the unoptimised quantum workflow on the same processor
- Condition
- more than seven times the probability of finding the optimum, 69-bus network
A named scale for when it would matter
- Baseline
- open-ended claims
- Condition
- about 230 buses as the projected threshold; a projection, not yet demonstrated
What happened next
For a client, the next step is the first engagement on this page’s industry: you send one expansion case, as a network file with in-service status honoured. You get back the proven plan and the gap. Two weeks.
Decision it enabled
The optimum found far more often on the same machine
Instead of: the unoptimised quantum workflow on the same processor
Verified by · Delivered through our platform network; superconducting quantum processor; hardware demonstration with a projection; the baseline is a quantum workflow.
How we know
- 01More than seven-fold probability of finding the optimum against the unoptimised quantum workflow, 69-bus network, superconducting processor.
- 02About 230 buses is the projected scale for a benefit over classical methods; the source marks it not yet demonstrated.
- 03Not claimed: a gain over a classical solver at 69 buses.
StatusPlatform networkMeasured on quantum hardwareDelivered through our platform network; superconducting quantum processor; hardware demonstration with a projection; the baseline is a quantum workflow.
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