Overview
Ireland Transmission reproduces EirGrid's ECP-2.5 dispatch-down study: the modelling methodology and published results EirGrid uses to assess renewable connection policy on the all-island grid. It is Bayesian Energy's bus-resolved model of the network down to 110 kV substations with per-farm wind and solar, co-developed with Infranua and solved as a full-year security-constrained dispatch. Because it matches EirGrid's published wind dispatch-down (by cause and by SEM area, across the ECP-2.5 2028 buildout), you can run the same analysis EirGrid does: test new or connecting assets, alternative buildout tiers and network scenarios, node by node.
Bayesian Energy and Infranua also offer bespoke consulting studies on the dispatch-down of future asset connections, assessing specific projects, buildouts and network reinforcements on the real all-island network.
Model
The all-island transmission network (110–380 kV, ~400 buses) is solved as a DC security-constrained optimal power flow against EirGrid's N-1 contingency set, over a full year, following EirGrid's ECP-2.5 method. Wind and solar sit at their real network locations per farm, and dispatch-down is decomposed into EirGrid's three causes: surplus, curtailment and constraint. The model runs a historical 2025 year and the ECP-2.5 2028 connection-policy tiers (Initial → 0.5 → full, up to 10.2 GW wind and 9.7 GW solar), published per year and scenario as a re-solvable Convexity database.
A free single-region (Connacht) topology demo (placeholder inputs, so no real capacities or costs, but a well-posed model you can run a dispatch on) opens in Convexity.
Sources
- Network: EirGrid TYTFS transmission data (110–380 kV).
- Dispatch-down (validation): EirGrid published wind dispatch-down (DD-HH) and the ECP-2.5 forecast.
- Fleet & availability: Irish public generation data; per-farm wind and solar locations.
- Demand & forward fleet: Infranua (demand, and the ECP-2.5 asset build-out).
- Weather: ECMWF ERA5 reanalysis.