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References

TSOs and utilities running SUMO in production and evaluation.

AltaLink Canada · Alberta AESO Canada · Alberta PG&E USA · R&D with EPRI Litgrid Lithuania · +50% gains ELES Slovenia · since 2017 HOPS Croatia IPTO Greece
In production R&D / evaluation SUMO · dynamic line rating & active thermal management
7grid operators
6countries, 2 continents
2017in production (ELES)
3,500+km rolled out
+15–40%capacity uplift

Real grids. Real operators. Verifiable results. TSOs and utilities running SUMO across Europe and North America.

ELES, Slovenia — In production since 2017

ELES, Slovenia — In production since 2017

SUMO runs day-to-day at ELES, supporting real-time operation and operational planning. 38 transmission lines, 10 power transformers and 2 phase-shift transformers monitored every day. Headline outcomes:

  • Higher transmission capacity available 95% of the time, with median uplift of 15–20% over nominal
  • Reduction of remedial actions in N and N-1 overload situations using DLR
  • Capacity forecasts up to 56 hours ahead
  • Reverse-DLR module used for icing prevention
  • Integrated with SCADA / EMS
  • Dynamic Thermal Rating calculations are used in electricity market participation

HOPS, Croatia — National-scale rollout

HOPS, Croatia — National-scale rollout

Croatia's TSO has chosen SUMO to roll out dynamic line rating across the country — a nationwide deployment covering more than 2,500 km of transmission lines.

As part of the Greenswitch project, ELES and HOPS found each other with a unique answer to the challenge of the expansion of the electric grid’s capacity and flexibility. ELES has an extensive experience in grid-wide Dynamic Line Rating, now powered by Operato’s SUMO technology. HOPS realized that by rolling out SUMO DLR over 2500km of lines, not only would they complement the 1000km of ELES, but create a unique internationally connected DLR area. When combining this with the joint operation of compensation devices and transformer thermal rating, the combined flexibility increase becomes much greater than the sum of the parts.

IPTO, Greece — Wind-driven capacity gains

IPTO, Greece — Wind-driven capacity gains

Three transmission lines under heavy wind-farm exposure. Strong capacity gains driven by conductor cooling from the prevailing winds.

AESO, Canada — Alberta system operator

AESO, Canada — Alberta system operator

Deployment with the Alberta Electric System Operator, with SUMO Study analytics in daily use.

AltaLink, Canada — Largest IOU transmission utility

AltaLink, Canada — Largest IOU transmission utility

Reference deployment with Canada's largest investor-owned transmission utility.

PG&E, USA — R&D with EPRI

U.S. R&D and evaluation deployment with Pacific Gas and Electric, in collaboration with EPRI.

Litgrid, Lithuania — gains of 50% over the static limit

Litgrid, Lithuania — gains of 50% over the static limit

As a preparation for a potential rollout of DLR across 38 overhead transmission lines over 1100 km, Litgrid awarded a contract to Operato to deploy a dynamic line rating system on a test line and observe the DLR results for a whole year, covering all wwaether and seasons. The pilot exceeeded expectations with capacities exceeding the static limit on average by more than 50%.

Other parts of the SUMO solution that were demonstrated were the fast and seemless integration with eth SCADA/EMS system and SUMO's ability to calculate line sag and safety clearence at points of interest, based on the accurate prediction of the line temperature at all the spans of the line.