Oireachtas Joint and Select Committees

Tuesday, 27 April 2021

Joint Oireachtas Committee on Climate Action

Increasing Wind Power on the National Grid: Discussion

Dr. Liam Ryan:

In our tomorrow's energy scenario, we examined how demand can potentially be offset and also efficiencies in demand. We know there can be future developments. One key element for me is that the cleanest and greenest megawatt is the one that is not used. Therefore, we need to think about how that can be brought out more. We are trying to plan for the system knowing the demand we are forecasting, which, as Mr. Foley said earlier, is up to 50%. If it is less than that, it will make the target more achievable within a shorter timeframe.

We would like to work with the Government and the Department on the cap Deputy Whitmore mentioned and on how caps may be brought onto the system. The solution we have proposed is potentially to move some of the demand outside of the greater Dublin region to facilitate the connection as much as we possibly can, knowing, as Mr. Foley said earlier, that it is a key part of the ecosystem and the other benefits back to society, and noting the concerns Deputy Whitmore mentioned earlier.

Moving on to Deputy Devlin's questions, EirGrid is working very closely with Clúid Housing and EnergyCloud on that endeavour. We see that as a potential opportunity to utilise the energy that is curtailed and constrained off the system. The curtailment is coming because we are world-leading and at times we cannot operate the system. We have too much generation on the system, more than we can run on it and, therefore, we are now moving that up, moving to 75% instantaneous and going above it. We see unlocking that demand potential as a real solution to that.

I am trying to answer the questions very quickly. Deputy Dooley's related to outages on the grid. As we are operating the grid and minimising building new infrastructure, we have to take part of the existing grid out to operate it, make it stronger and modernise it more in order that the future generators and demand customers can connect onto it. That is part of evolving the transmission system of how we do it. Also, we see that some energy users are growing more quickly than the infrastructure can be built. It takes a number of years to build infrastructure and, therefore, during that period some of the large energy users are putting solutions in place which allow them to grow it at the rates they want to grow it while we are developing the system.

The final point that was raised related to wind farms in various jurisdictions. Unfortunately, I do not have the knowledge on that specific project to hand so I cannot comment on it.

I think I have covered most of the-----

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