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As we've been reporting this morning, the energy regulator has found data centres will use almost as much power over the next ten years as all households in New South Wales and Victoria. Tristan Edis is an energy and carbon markets economist. He says AEMO's warnings should be heeded.

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00:02they seem about right given the the size of the the projects that are proposed so there's a there's
00:09a huge pipeline of projects that are proposed not all of them will go ahead so it's a bit of
00:13a
00:13challenge for aemo to try and work out how many of those are likely to actually happen because a lot
00:19won't um and there's a lot of uncertainty around these forecasts but nonetheless the the scale of
00:25of what's going in um is significant enough to really merit serious concern and we need to make
00:32sure that the additional electricity demand that these projects uh add is covered by additional
00:39new generation otherwise electricity prices will go up most likely yeah i'll get to electricity
00:44prices in just a moment what about the grid's reliability is it under threat from this
00:48increased demand from data centers well according to aemo's latest analysis that they released today
00:54along with the updated forecast they looked at the supply demand balance and they said look
00:58reliability shouldn't be at threat uh for the next few years so really over i think to out to 2030
01:05they
01:05sort of said things are looking reasonably good um but we really do urgently need to bring on new supply
01:12because it takes a long time to build new power stations and so we need to get cracking as soon
01:18as
01:18we can to make sure that um beyond that 2030 time frame everything will be fine well let's look at
01:24that new supply and what it might look like we know that the government is looking around the policy here
01:29and one is to require data centers to guarantee new renewable supply to cover their energy use um
01:35is that possible can renewables be built in time to cater for this demand absolutely um so just to give
01:45you one illustration uh rooftop solar being added mainly to households is adding about more more
01:52electricity generation than what the data centers will add in terms of their demand so that doesn't
01:58mean everything's all fine right so but that just illustrates that just rooftop solar from households
02:04is adding more electricity generation than what the data centers are expected to add but the problem is
02:11we've also got to juggle the fact that we're adding electric vehicles at the same time and we've also
02:16got to manage a phase down in retirement of very old coal-fired power stations that are getting old and
02:22increasingly unreliable so we have to manage a withdrawal of of that supply as well as adding
02:28additional sources of demand like electric vehicles so we we can certainly do this so as an example
02:34beyond rooftop solar another example is the the the large-scale wind and solar farms that have all their
02:41government approvals in place their environmental and planning approvals are capable of generating 86
02:46terawatt hours of electricity per annum by comparison in 2035 according to the aemo forecast
02:54data centers will add or will have 32 terawatt hours so just the projects that already have approvals in
03:00place 86 terawatt hours versus data centers 32 so if we muck this up if we don't
03:07able we're able to accommodate the extra data centers and more than cater for their extra electricity
03:14demand but it won't happen unless government is really requiring those data centers to pull their
03:21weight and we've seen what's happened in other countries in ireland in in certain states in the
03:25us where there's been a lot of data center development they have not added extra supply so we need to
03:31put an
03:31obligation on them otherwise other consumers are going to end up picking the picking up the bill
03:36what do you say tristan to the there's some opposition from some of the states with respect
03:40to where this generation comes from being renewables the argument there is that is it right to tie this
03:47economic opportunity to the renewable transition the concern there that it might weaken investment in the
03:54country yeah the issue is if it's not renewables that are going to add the extra supply where's it
04:01going to come from and the issue is we've already got a gas shortage right now we've got manufacturers
04:07pleading to get hold of gas supplies and um we're looking to have to reserve some gas supplies so that
04:14manufacturing have enough gas so if we put that into power stations to feed data centers that means less
04:20for everyone else and the other issue is that means higher power prices and the other issue is
04:25where we're going to get the gas turbines from so at the moment there is a global shortage of gas
04:30turbines there is a five-year wait time for gas turbines because a range of other data centers
04:34around the world particularly in the us have sucked up all of the gas turbines and really
04:39queensland government are pushing this idea that it'll all be fine you know what that's going to
04:44mean it's going to mean queensland electricity consumers are going to pay more for their electricity
04:48and you know what that'll be great for queensland treasury which owns the coal-fired generators
04:53that'll expand their output to meet this and raise their prices but it won't be good for queensland
04:59electricity consumers it'll be great maybe the data centers will do okay out of the whole thing maybe
05:04but other electricity consumers will have to pay more because where else is the new supply going to
05:09come from and in the end demand will go up there won't be any new supply from gas because we
05:15can't get
05:16gas turbines and power prices will go up which is great for queensland treasury but not for electricity
05:21electricity consumers
05:22you
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