It doesn’t really seem like net metering is sustainable. Say for example someone generates the same amount of electricity they use, in that case they pay $0 for electricity even though the grid has to take the burden of storing the electricity until they use it later in the day.
It doesn’t really seem like net metering is sustainable.
Not sure why you think that.
Say for example someone generates the same amount of electricity they use, in that case they pay $0 for electricity even though the grid has to take the burden of storing the electricity until they use it later in the day.
The grid isn’t storing their energy - it’s sending it to other customers, meaning that non-sustainable, polluting energy sources don’t have to be generated.
The only time that’s not true is when the net load on the grid dips below zero. According to the duck curve graph from the article, it does appear to be very briefly dipping for a very brief time period each day. At that point it could make sense to store the rest, but if the grid doesn’t have storage capacity then any excess is “wasted,” but at that point the grid engages in a process known as “curtailment,” which means it rejects the excess, meaning that nobody gets credit later for energy that isn’t used now.
Also, curtailment is often not because the grid itself is over-supplied, but because specific regions are over-supplied and the grid lacks transmission lines from them to regions where demand is higher.
in that case they pay $0 for electricity
True under NEM 1.0, but NEM 2.0 also includes “non-bypassable charges” - components of pulling from the grid that cannot be offset by what they contribute. Those charges are roughly 5% as far as I can tell, meaning that if they pulled $300 worth of energy from the grid and sent back $300 worth (or more), they’d still owe $15.
Sure, but if everyone does it then it wouldn’t work (no one would be drawing excess when the solar is at peak), so that makes it not very sustainable. I’m not saying it’s a bad thing, just that it can’t continue to work if adoption becomes near-universal (it doesn’t seem to be for now). I guess these non-bypassable charges will fix that, but that sounds a lot like what they are talking about (only getting paid some large percentage of the price for energy sent to the grid).
Sure, but if everyone does it then it wouldn’t work (no one would be drawing excess when the solar is at peak)
If everyone did it then electric companies could prioritize investing in batteries and capacitors and further reduce their reliance on fossil fuels.
If everyone did it, then even without extra storage capacity, net metering would still work. You don’t get credits for generating energy, just for sending it to the grid. All they have to do is the same thing they already do - curtailment.
Finally, it’s impossible for everyone to be on net metering because NEM 3.0 doesn’t have net metering and NEM 1.0 and 2.0 are only available if you’re grandfathered in.
If oversupply were really a concern, then you’d think the prices during oversupply would reflect that, dropping to basically nothing. They don’t. If they did, then EVs could be charged for super cheap when solar power was flooding the grid.
that sounds a lot like what they are talking about
What they’re talking about is revoking the law that grandfathered people into NEM 1.0 and 2.0 contracts. Keep in mind, the people who purchased solar under NEM 1.0 and 2.0 did so under the presumption that they would be able to stay on it for at least 20 years (because that was codified in law).000
only getting paid some large percentage of the price for energy sent to the grid
NEM 3.0 reduces the way credits are calculated to, on average, 25% of what they were before, and that are not the same as the retail rate.
https://aurorasolar.com/blog/explaining-and-modeling-californias-net-billing-tariff-nem-3-0/ has some examples. At the same time that electricity from the grid costs $0.44/kWh, solar sent to the grid only returns a $0.05/kWh credit.
5 cents is not a large percentage of 44 cents.
If your neighbor has solar and you charge your EV in the middle of a sunny day when your neighbor is at work, you’re probably using your neighbor’s electricity to do so. That’s gonna cost you $15 and net your neighbor a $1.71 credit.
Under NEM 1.0 and 2.0, if you import from and export to the grid in the same hour, those amounts are netted, even before NBCs come into effect. But under NEM 3.0, you could get billed for importing in the same hour even if you exported far more than you used. If you imported 1 kWh from the grid, you’d need to export 9 kWh to break even.
Again, this doesn’t make sense. Someone is paying $0.44/kWh for the energy you exported, but you’re only getting $0.05 credit for it.
If your solar system has storage, you can strategically export energy to the grid when the compensation is higher. That’s something you can consider when installing your solar system… but that’s not true for the people who are grandfathered into NEM 1.0 and 2.0, who knew they were grandfathered in by law.
And from what I’ve heard, even that doesn’t actually help that much, because the credits don’t apply to the largest part of the bill - they apply to “generation,” not to “delivery.” I haven’t found a reliable source confirming that, but if true it just adds insult to injury - if you pay the added cost to install an intelligent storage system and configure it to return money to the grid when their costs are highest, you get a credit equal to the cost you helped them avoid, but then the credit’s actually only usable on a small portion of your bill. If the calculations are based on avoided cost, you should get those credits even if it means the electric company is paying you.
Everything you’re saying is wrong.
We only have a stable grid now because the hottest days produce the most solar to power ac. Our grid would have collapsed otherwise .
In the past we had huge demand swings during the course of a single day, as factories and offices burned power, then people went home to cook food and run their laundry.
Solar helped that greatly, coupled with fracking gas which allowed us to plant ge90 turbines everywhere for nothing and have we extremely dispatchable power for load following.
Especially since bulbs went led and now might generation is much more manageable.
But mentally defective utilities can’t do the sane thing and write an API so that EV’s can coordinate charging to balance load.
The problem with utilities is that they’re stuffed to the gills with the idiot relatives of politicians who couldn’t get jobs anywhere else.
Utilities have avoided infrastructure development such as more solar generators, rooftop solar buyback incentives.
They avoided power storage development too.
They now complain that there’s too much fluctuation between peak solar hours and have to charge the people that were taking action on their own to avoid excessive power costs to make ends meet.
We are paving over the Mojave and prime ag lands to build solar instead of incentivizing people to put it on top of their homes. Also, the current PUC is hopelessly corrupted by PGE influence. Anything that could be twisted to create more profit for PGE should be construed as doing so in practice.
People are just going to install backup batteries and then PG&E isn’t going to get anything.
EV car batteries have been used for the purpose of storing daytime-generated solar energy to power a home during the night.
If I had an expensive EV with an expensive battery in it, I would not want to be wasting my precious limited number of charge cycles on running my house.
Unless you’re talking about a home-scale project to repurpose retired EV batteries for stationary storage. I’ve only ever read about grid-scale versions of such projects.
…I’ve only ever read about grid-scale versions of such projects.
Your EV battery can now power your home, yes really. - The Washington Post
I mean, the existing scheme is economically-problematic, because it means that non-solar-generation users are subsidizing solar-generation-users grid connections.
The utilities have two separate set of costs, one from providing the grid connection, and the other from providing power over it.
Traditionally, because the two were linked for practical purposes, utilities just generated their revenue from charging a fee based on electricity use.
But they became decoupled when home solar power generation became more-common. That caused people who were doing solar power generation to not just not pay for electricity being provided – which is fine, they’re providing that – but also to not pay the costs of keeping the grid available, which is not. Under the traditional billing system, those grid maintenance costs were transferred to people – who statistically are poorer, another point of contention – weren’t doing home solar power generation.
Having a grid connection provides value to solar generation users. It means reliability, and ability to scale up use on demand. It costs something to provide that. And the folks who are incurring the cost and benefiting from it should pay those costs.
And yeah, I agree that it makes solar less-advantageous, and some rooftop solar users got sold a bill of goods by rooftop solar installers who promised that their rooftop solar would make more economic sense than it did, because they could exploit that billing inefficiency. But the point is, it was a bad policy, and rooftop solar installers had no ability to guarantee that it would continue.
If you’ve got rooftop solar, you can still avoid paying for the electricity that you’re generating rather than pulling from the grid. You just have to pay your share of the grid maintenance cost. Or, if you really don’t need that connectivity and you legitimately feel that you’re better off off-grid – which I suspect is probably not the case for most people – you can just cut off from the grid, rely entirely on your local generation capacity of whatever sort. The only thing you can’t do is have grid access and have non-solar-rooftop generation customers subsidize that grid access.
You’ve articulated well a lot of good points, but you’re missing a few key considerations. One elephant in the room is that the Investor Owned Utilities (which cover the vast majority of accounts in California) are abusing their monopoly powers as much as possible (including regulatory capture). That is sadly inextricably linked with the resentment felt by their solar customers, even as it is also felt by all of their non-solar customers.
You’re talking about the kind of tradeoffs that make sense in an ideal system, pricing things according to what they actually cost to provide. But the IOUs price things at “how much can we get the CPUC to allow us to charge?” And they love to stoke class warfare politically when it suits their business purposes. It’s just one more area where the actual problem is the billionaires (or just call it capitalism) against the 99% but they keep the water too muddy for most people to see it.
I believe it’s also still generally either illegal or at least infeasible to disconnect from the grid entirely in most of urban and suburban California, because it’s tied to occupancy permitting. I think the best hope of ending the madness does lie in that direction though. Solar customers tend to be much wealthier than non solar customers, which in aggregate means many of them will have the means to go full battery off grid as the pricing disparity continues to grow. This loss of legally-mandated captive market is the only chance to force monopolies to behave better.
Sounds good, but it essentially means you would then have to buy and maintain the method of power generation and delivery back to a company to sell it to someone else. I totally get remaining grid connected is important, but those grid connected systems are supplying a whole lot of power back to the grid. Perhaps if you generate more than you use, the power company should pay you to maintain your generators and infrastructure.
Transparent pricing and not itemized billing could help a lot (and allow for better application of fees based on use case).
We already pay a grid connect fee and on top of that we purchased over 10k in hardware and we make it so their needs to be less grid upgrades and we provide our excess power for 8 cents a kw for NO hardware cost to them. Sounds like they are getting a nice deal. But of course that is not nice enough for PG&E they want it all.
Could easily just charge separate lines on the bill, just like they do for everything else.
1 - $0.0x c/KWh for line maintenance - this charges on both incoming and outgoing power.
2 - $0.xx c/KWh for power usage - this charges only on the incoming side.
3 - $xx flat fee every month for administration of your account.
Charge what things cost and it won’t matter how your use your energy.
edit: formatting
I agree – that decoupling of fees is what’s happening and is what the article is complaining about.
EDIT: I’d also add I kind of feel like this pattern is turning into something of a chronic problem for California. The same sort of thing happened with EVs getting to ignore carpool rules.
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California tells people that if they buy an EV, they can ignore carpool rules and use the carpool lane without carpooling. Advocates get this past voters by billing it as being “green”.
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EV companies sell a relatively-costly product, implying that the policy will continue ad-infinitum. They can charge a premium because they’re giving special road access bundled with the vehicle. This is lucrative for EV manufacturers; they’re actually profiting by selling access to a state service that they aren’t paying for.
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Well-to-do people do the math and figure out that while the car costs more, it’s a pretty cheap deal for your own road. They buy the car.
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California announces that the policy is going to expire. People who paid more and had an expectation of never-ending special road access are angry.
There are over 400,000 drivers in California who currently have decals - many of them bought their clean air vehicle to speed up their commute so losing that privilege is a big deal.
A Tesla driver says, " It is frustrating. Like I said the main reason for the decision is driving in Bay Area traffic."
If the carpool stickers had come with a 20 year guarantee then nobody could reasonably be upset about the rules changing later because “forever” turned out to be too good to be true. This would be like solar, except that they want to change the rules later anyway.
If they simply left the original EV carpool stickers grandfathered but stopped giving out new ones, people who missed their chance would be upset. But the program would have worked exactly as intended, to incentivize early adoption of EVs by giving out a priceless benefit. It should never have gone on as long as it did, but government reacts slowly.
California announces that the policy is going to expire. People who paid more and had an expectation of never-ending special road access are angry.
This is the step where your comparison to solar (at least in California) breaks down. I’m not a California resident, but from what I understand under the NEM 1 and NEM 2 rules there is NO expectation the preferential net metering will last forever. Solar customers were specifically told that putting in solar during NEM 1 would guarantee those terms for 20 years from install date. Same thing for NEM 2, the rules would apply for 20 years from the install date. After the 20 year period, you’d be subject to whatever net meter would be offered to new customers, which could be none. source
What this proposition proposes is cutting that 20 years to 10 years from install date:
"Convert NEM 1.0 and 2.0 accounts to the NBT either upon sale of a home or after 10 years of interconnection. " source
So customers that took a large financial risk installing solar that are coming out ahead may now have the deal shifted out of their favor. How is that fair to the solar customers? Worse, the knock on effect will destroy the trust in state government incentives in the future. Why would any citizen risk a long term outlay based on policy if the state government may decide one day they don’t want to hold up their end of the deal anymore?
That’s a pretty weird rant on EVs.
The carpool lanes were very under utilized. Hybrids and later EVs were also slow to be adopted, and the state wanted this adoption accelerated due to air quality and just general environmental consciousness.
So the state decided to add the carpool benefit, which solved two problems.
Now that EVs are far more abundant, that policy is getting revisited. Which is fair, because the carpool lane can only support so many before it just gets clogged like the main road. And people don’t necessarily need the encouragement to get EVs anymore.
Nothing is permanent.
And they 100% should.
I’m in the Great Republic of Texistan, and that split billing is how it works here: I pay the power delivery people $x+($0.0xkwh), and then the power generator $0.0xkwh.
The screw-you happens because the power buy back from the power company is a percentage of what I pay the REP (power company). So I get something like 85% of half the cost of a KWH back for every KWH I put back on the grid, and pay full sticker price for anything I import.
Solar is a piss-poor worthless investment here, simply because power isn’t expensive enough, and the payback for surplus isn’t even a McDouble at this point. Average monthly credit tends to be under $20 on a ~$130 bill. Better than nothing but the solar generation + buyback won’t ever pay for the panels before they’re EOL. Nevermind if I had spent $15k on batteries to go with it.
It’d be a shame to see that happen in other places that have historically done much better simply because of unsustainable costs due to well, greed and incompetence.
