I have a modest set of solar panels on an entirely ordinary house in suburban London. On average they generate about 3,800kWh per year. We also use about 3,800kWh of electricity each year. Obviously, we can't use all the power produced over summer and we need to buy power in winter. So here's my question: How big a battery would we need in order to be completely self-sufficient? Background …
It’s very infuriating talking to people about this because they never really accept that nuclear power is necessary. They spend all their time complaining about how it’s dangerous (it isn’t) and how it’s very expensive, and how you don’t have a lot of control over its output capacity. And yeah, all of those are true, but so what, the only other option is to burn some dead trees which obviously we don’t want to do.
Just because nuclear has downsides doesn’t mean you can ignore it, unless of course you want to invent fusion just to spite me, in which case I’ll be fine with that.
In US, and EU is having similar nightmare, nuclear was last built at $15/watt. Installing solar is under $1/watt, and for 20 equivalent hours of nuclear per day (less demand at night means not full production even if available) equivalent to $5/watt-day. $1/watt capital costs is 2c/kwh for solar, and for full day production needs 10c/kwh. All before financing. Nuclear is 30c/kwh. It adds 10 extra years of construction financing, requires political bribes to suppress alternative supply whenever they decide to begin operations, uranium purchases/disposal, expensive skilled operations staff, security, disaster insurance.
Solar does need batteries for time shifting its daily supply. At current LFP prices of $100/kwh, 1c/kwh full cycle is prefinancing cost. and so 3c/kwh if triple the charging/discharging daily capacity. 6 hours of storage is a very high number in power systems. It will capture all energy from a northern summer. It will rarely fully discharge with any time shifting incentives to daytime (much higher convenience to consumers and industry) providing resilience to rainy days. A 2c/kwh value (before financing which is apples to apples comparison to nucclear) means a 5gw solar + 30gwh (much lower if enough private EVs are available for time shifting needs) battery costs 12c/wh or $8B vs a $15B equivalent 1GW nuclear solution. Both last 60 years due to low battery charge/discharge rates and capacity cycle use, with much lower maintenance costs/downtime for life extension costs for solar/battery system vs keeping a nuclear reactor operational. No/minimal operations costs.
It’s very infuriating talking to people about this
Yes. Nuclear shills are frauds who should be frustrated in their theft of the commons.
Well I’m not going to buy the book to find out what they are so all I’m going to go ahead and say is this. Yes there are solutions such as battery storage (although they do tend to be extremely explodey) and using the power to pump water around, or using mirrors to heat up salt in insulated containers, but they are all very specific solutions that will only work in very particular situations, which we don’t always have.
Almost like we can have many solutions where one of them is workable in any given situation.
Edit: also, as for “explody” batteries, that’s a factor of certain lithium chemistries. It’s not even all lithium chemistries. Sodium and flow batteries are usually better options for grid storage, anyway, and neither has particularly notable safety issues.
The new tack is to conflate nuclear energy with fossil fuels. As in assuming that nuclear energy is “legacy” power generation, and that obviously we need to use modern gernation like solar and wind, and magical grid-level storage technologies that don’t exist. Also ignore that baseload power is still required, and is currently fulfilled with Natural Gas and Coal.
There is absolutely nothing required about baseload power. It’s there because the economics of generating power favored it in the past. You could build a baseload plant that spits out a GW or so all day, everyday for relatively cheap.
That economic advantage is no longer there, and no longer relevant.
Honestly it’s like talking to a conspiracy theorist.
What are you talking about, what’s “an accounting thing” do you even know what base load is? Go look up brownouts, actually for that matter go look up the term baseload because I don’t think you’re using it right
In the past, coal and nuclear were perceived to be the cheapest resources, and the prior electricity system structure relied upon large power plants without valuing flexibility. Today, low natural gas prices, declining renewables costs, flat electricity demand due to more efficient energy use, and stronger climate and public health protections are all driving an irreversible shift in the underlying economics of the electricity industry. As a result, the term “baseload”—which historically has been used to refer to coal and nuclear plants—is no longer useful.
Yes if you ignore all externalities the “economics” means that you can use Natural Gas “peaking” plants instead. But one of the main advantages of nuclear power is zero green-house gas emissions.
If fossil fuels were taxed appropriately, the economics of them wouldn’t be viable anymore. A modest tax of a $million USD per ton of CO2 would fix up that price discrepancy.
Most of this is being driven by renewables. Natural gas gets mentioned because its price has dropped due to fracking, but it’s not a strictly necessary part of this argument, either. Water/wind/solar solutions have undercut even the plummet in natural gas prices.
Nuclear has no place. Nobody is building it, and it’s not because regulators are blocking it. It’s also completely unnecessary.
It’s very infuriating talking to people about this because they never really accept that nuclear power is necessary. They spend all their time complaining about how it’s dangerous (it isn’t) and how it’s very expensive, and how you don’t have a lot of control over its output capacity. And yeah, all of those are true, but so what, the only other option is to burn some dead trees which obviously we don’t want to do.
Just because nuclear has downsides doesn’t mean you can ignore it, unless of course you want to invent fusion just to spite me, in which case I’ll be fine with that.
In US, and EU is having similar nightmare, nuclear was last built at $15/watt. Installing solar is under $1/watt, and for 20 equivalent hours of nuclear per day (less demand at night means not full production even if available) equivalent to $5/watt-day. $1/watt capital costs is 2c/kwh for solar, and for full day production needs 10c/kwh. All before financing. Nuclear is 30c/kwh. It adds 10 extra years of construction financing, requires political bribes to suppress alternative supply whenever they decide to begin operations, uranium purchases/disposal, expensive skilled operations staff, security, disaster insurance.
Solar does need batteries for time shifting its daily supply. At current LFP prices of $100/kwh, 1c/kwh full cycle is prefinancing cost. and so 3c/kwh if triple the charging/discharging daily capacity. 6 hours of storage is a very high number in power systems. It will capture all energy from a northern summer. It will rarely fully discharge with any time shifting incentives to daytime (much higher convenience to consumers and industry) providing resilience to rainy days. A 2c/kwh value (before financing which is apples to apples comparison to nucclear) means a 5gw solar + 30gwh (much lower if enough private EVs are available for time shifting needs) battery costs 12c/wh or $8B vs a $15B equivalent 1GW nuclear solution. Both last 60 years due to low battery charge/discharge rates and capacity cycle use, with much lower maintenance costs/downtime for life extension costs for solar/battery system vs keeping a nuclear reactor operational. No/minimal operations costs.
Yes. Nuclear shills are frauds who should be frustrated in their theft of the commons.
This has been studied, and we don’t need nuclear. All the solutions are sitting right there.
https://www.amazon.com/No-Miracles-Needed-Technology-Climate/dp/1009249541
Well I’m not going to buy the book to find out what they are so all I’m going to go ahead and say is this. Yes there are solutions such as battery storage (although they do tend to be extremely explodey) and using the power to pump water around, or using mirrors to heat up salt in insulated containers, but they are all very specific solutions that will only work in very particular situations, which we don’t always have.
Almost like we can have many solutions where one of them is workable in any given situation.
Edit: also, as for “explody” batteries, that’s a factor of certain lithium chemistries. It’s not even all lithium chemistries. Sodium and flow batteries are usually better options for grid storage, anyway, and neither has particularly notable safety issues.
The new tack is to conflate nuclear energy with fossil fuels. As in assuming that nuclear energy is “legacy” power generation, and that obviously we need to use modern gernation like solar and wind, and magical grid-level storage technologies that don’t exist. Also ignore that baseload power is still required, and is currently fulfilled with Natural Gas and Coal.
There is absolutely nothing required about baseload power. It’s there because the economics of generating power favored it in the past. You could build a baseload plant that spits out a GW or so all day, everyday for relatively cheap.
That economic advantage is no longer there, and no longer relevant.
Well you still need baseload. You can’t forget about it just because it’s inconvenient.
No, you don’t. It’s entirely an accounting thing.
Honestly it’s like talking to a conspiracy theorist.
What are you talking about, what’s “an accounting thing” do you even know what base load is? Go look up brownouts, actually for that matter go look up the term baseload because I don’t think you’re using it right
You don’t need baseload. You need to follow the duck curve of demand.
You had baseload because those plants used to be the cheapest one you could find. That’s not true anymore, and the model needs to shift with it.
https://www.nrdc.org/bio/kevin-steinberger/debunking-three-myths-about-baseload
Yes if you ignore all externalities the “economics” means that you can use Natural Gas “peaking” plants instead. But one of the main advantages of nuclear power is zero green-house gas emissions.
If fossil fuels were taxed appropriately, the economics of them wouldn’t be viable anymore. A modest tax of a $million USD per ton of CO2 would fix up that price discrepancy.
Most of this is being driven by renewables. Natural gas gets mentioned because its price has dropped due to fracking, but it’s not a strictly necessary part of this argument, either. Water/wind/solar solutions have undercut even the plummet in natural gas prices.
Nuclear has no place. Nobody is building it, and it’s not because regulators are blocking it. It’s also completely unnecessary.
What makes power when the sun isn’t out and the wind isn’t blowing? Nuclear, gas, or coal.
By being anti-nuclear, you force it to be gas or coal.