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Tesla Wins Contract to Help Power the California Grid

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Re: Tesla Wins Contract to Help Power the California Grid

#81

I think its important to note, for those who complain Tesla can't compete against pumped storage or other utility scale storage methods, that Tesla is able to have this deployed in 3 months (this is partly because Tesla can just drop racks of batteries on site and be up and running, and partly because of the regulatory environment after the Aliso Canyon natural gas storage complex leak fiasco). Edit: This will replac…

So this is only financially viable because of Californian risk aversion after last years gas leak. If you have a reliable natural gas distribution network, like the rest of the world, batteries don't make any financial sense versus gas power plants. I mean, this entire plant can supply 20 MW and will cost somewhere around $20 million. For that price you can buy two General Electric LM2500 gas turbine generators that…

> "If you have a reliable natural gas distribution network, like the rest of the world, batteries don't make any financial sense versus gas power plants."

"The rest of the world" also has measurably more expensive gas. ($10/mmBTU for large scale users around here).

Re: Tesla Wins Contract to Help Power the California Grid

#82
post #44

Earlier quoted context omitted.

Having real-time pricing of electricity coupled with users who can adapt their usage automatically to real-time prices will also considerably moderate power demand.

Most peoples electricity usage is relatively inelastic and no one wants the cognitive overload of checking electricity prices before they put the TV on.

Maybe this is an actual problem for "Internet of Things" to solve -- appliances that can time when they turn on until the price of electricity dips.

Of course there should be some mechanism involved to prevent all washing machines to turn on at exactly the same moment the moment it dips...

Re: Tesla Wins Contract to Help Power the California Grid

#83
post #35

Earlier quoted context omitted.

Having real-time pricing of electricity coupled with users who can adapt their usage automatically to real-time prices will also considerably moderate power demand.

Yes. Also, trading off the reliability of power. This seems outrageous to many of us in the West, but here in Australia our power utility already cuts power to neighborhoods in half hour blocks during peak power consumption during summer (I believe they exclude hospitals and some other sites like that from this policy). The infrastructure savings made by this are huge (think of 99% reliability vs 99.99% in software),…

How huge are the savings? Do you have any numbers or sources?

Do those power utility savings translate into savings to the people who are cut off? I for one would not want to trade electricity price for reliability.

Re: Tesla Wins Contract to Help Power the California Grid

#84
post #44

Earlier quoted context omitted.

Most peoples electricity usage is relatively inelastic and no one wants the cognitive overload of checking electricity prices before they put the TV on.

Oh, I disagree. A/C is very power hungry, and can be adjusted to cool the house lower than normal during cheap power times and let it go a bit higher during expensive power times. It can also "pre-cool" when power is cheaper. The same goes for an electric water heater. The charger for your Tesla can also adjust when it charges based on power prices. The dishwasher/washer/dryer can be set to come on at night when the…

A/C can also freeze water to shift the load very cheaply.

Re: Tesla Wins Contract to Help Power the California Grid

#85

I think its important to note, for those who complain Tesla can't compete against pumped storage or other utility scale storage methods, that Tesla is able to have this deployed in 3 months (this is partly because Tesla can just drop racks of batteries on site and be up and running, and partly because of the regulatory environment after the Aliso Canyon natural gas storage complex leak fiasco). Edit: This will replac…

So this is only financially viable because of Californian risk aversion after last years gas leak. If you have a reliable natural gas distribution network, like the rest of the world, batteries don't make any financial sense versus gas power plants. I mean, this entire plant can supply 20 MW and will cost somewhere around $20 million. For that price you can buy two General Electric LM2500 gas turbine generators that…

Just to inform the discussion wrt. timescales and magnitudes of power variability, here is a real-time plot of power generation in the UK showing daily/weekly/monthly variations in consumption and in production from nuclear, coal, gas turbines, wind, bio and (pumped) hydroelectric. This is with zero battery storage on the grid (I believe).

http://www.gridwatch.templar.co.uk

Re: Tesla Wins Contract to Help Power the California Grid

#86
post #83
post #35

Earlier quoted context omitted.

Yes. Also, trading off the reliability of power. This seems outrageous to many of us in the West, but here in Australia our power utility already cuts power to neighborhoods in half hour blocks during peak power consumption during summer (I believe they exclude hospitals and some other sites like that from this policy). The infrastructure savings made by this are huge (think of 99% reliability vs 99.99% in software),…

How huge are the savings? Do you have any numbers or sources? Do those power utility savings translate into savings to the people who are cut off? I for one would not want to trade electricity price for reliability.

Isn't it somewhat hypocritical to not want to pay for the expensive marginal case but to ask for someone else to do it for you?

Re: Tesla Wins Contract to Help Power the California Grid

#87

Earlier quoted context omitted.

Sure peakers are expensive, but they are profitable, otherwise no-one would build and run them. Supply and demand etc. I'm not sure what you mean by Tesla cannibalizing the peakers? Do they already own traditional peaker plants? I agree revenue is revenue, I'm just saying this is perhaps unlikely to provide more revenue from sales outside CA.

Batteries are now cheaper than peakers everywhere, not just CA. That's what I'm saying. Tesla's PowerPack installs (battery storage receives federal incentives, nat gas does not) will replace peakers, leaving them as stranded assets (the cannibalization I refer to). Edit: unepipe: Tesla packs perform the exact same role as a peaker plant: energy on demand. They are distributed, dispatchable loads and generators, avai…

As you can see in the graphs I linked in upstream comment, in the UK alone, CCGT power plants have a capacity of 20 GW. That's 1000x this battery plant; meaning a $20 billion capital investment. And I don't see any way that Tesla (or anyone else) has the manufacturing capability to deliver that. Remember this is just for the UK, so for the US and Europe in total you're talking at least 10 000 plants like this.

Re: Tesla Wins Contract to Help Power the California Grid

#88
post #76

Earlier quoted context omitted.

Batteries are now cheaper than peakers everywhere, not just CA. That's what I'm saying. Tesla's PowerPack installs (battery storage receives federal incentives, nat gas does not) will replace peakers, leaving them as stranded assets (the cannibalization I refer to). Edit: unepipe: Tesla packs perform the exact same role as a peaker plant: energy on demand. They are distributed, dispatchable loads and generators, avai…

Could you share a reference for "Batteries are now cheaper than peakers everywhere"

The cost of batteries is falling at a current rate of 16% per year and it's accelerating. As such, battery storage will become increasingly competitive with peaker plants.

"From around 1995 through 2010, energy storage costs had fallen by about 14% a year – a rate that means the price will halve in a little more than five years. In 2010 – that rate sped up to 16% a year, and while a 2% increase might seem small it actually means that instead of taking five+ years to halve – it would now take slightly less than four years, more than 20% faster. Tesla’s Gigafactory has now increased the rate of price decrease even faster than the 16%. It is estimated that the Gigafactory, by doing nothing more than moving all of the supply chain arms under a single roof, has decreased the price of battery packs by 30-50% – while doubling the global volume."

https://electrek.co/2016/05/19/the-math-and-evidence-all-aro...

JB Staubel has indicated the same... https://www.youtube.com/watch?v=lgcozueYXMU&feature=youtu.be...

Re: Tesla Wins Contract to Help Power the California Grid

#89

Earlier quoted context omitted.

I'd encourage you to spend 15 minutes researching what the costs are of running a peaker plant. There's a reason they're the most expensive generation method per MWh (peakers run for under 100 hours per year). Revenue is revenue. If Tesla is able to cannibalize the peakers to contribute towards its enormous capital expenditures, and continue to reduce costs with the Gigafactory, it only makes utility battery storage…

Sure peakers are expensive, but they are profitable, otherwise no-one would build and run them. Supply and demand etc. I'm not sure what you mean by Tesla cannibalizing the peakers? Do they already own traditional peaker plants? I agree revenue is revenue, I'm just saying this is perhaps unlikely to provide more revenue from sales outside CA.

Peakers are profitable precisely because the supply is close to non-existent at peak consumption. What batteries are doing is "moving" excess supply from one moment to deal with excess demand at other.

Re: Tesla Wins Contract to Help Power the California Grid

#90

Earlier quoted context omitted.

Sure peakers are expensive, but they are profitable, otherwise no-one would build and run them. Supply and demand etc. I'm not sure what you mean by Tesla cannibalizing the peakers? Do they already own traditional peaker plants? I agree revenue is revenue, I'm just saying this is perhaps unlikely to provide more revenue from sales outside CA.

Batteries are now cheaper than peakers everywhere, not just CA. That's what I'm saying. Tesla's PowerPack installs (battery storage receives federal incentives, nat gas does not) will replace peakers, leaving them as stranded assets (the cannibalization I refer to). Edit: unepipe: Tesla packs perform the exact same role as a peaker plant: energy on demand. They are distributed, dispatchable loads and generators, avai…

I thought about this some more, and I realised, Tesla and other EV manufacturers better be praying that this is not a financially viable replacement for gas turbine peakers in general.

Otherwise there will be a big jump in demand for batteries, as power companies will be looking for hundreds of GWh of battery capacity. If they make a yearly profit for the power company that's significant enough to warrant the CAPEX of replacement, increasing the battery price by 10% only means one or two more years before break-even. So power companies could easily afford that if we assume the investment at current price levels is profitable for them.

That is going to significantly (negatively) affect the price developments of batteries and constrain supply even more than today, so EV manufacturers will be faced with either losing (more) money on each car or increasing prices and selling less cars.

Unless we assume Tesla is looking to pivot out of EVs in general, but I think that's a rather absurd assumption given their current actions.

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