181–190 of 262 posts
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It's limited to 800W in Germany and 1200W in Utah. It isn't about to replace utility-scale generation anytime soon.
Those limits are just arbitrary regulations. It's easy to install 10x that on a residential roof.
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It's limited to 800W in Germany and 1200W in Utah. It isn't about to replace utility-scale generation anytime soon.
That only applies if you connect it to the grid in each of those places, I believe.
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That's correct. In Pakistan, typically cities are broken up into housing societies. Each society is broken up into sectors/blocks, which are typically indexed by the alphabet(A, B, C, ...), but occasionally, one will see block M7 or sector B2 etc. In each such sector, each house has a unique numbered address. Some larger societies are first broken up into "phases" and then into sectors/blocks. Street numbers are typi…
Two questions: - What is a 'society'? Is it like a community that pays for upkeep and has other advantages or just a name for an area? - Do tell about Calgary!
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Grids in Germany if you're not a "typical household/office" with therefore atypical grid usage bill for peak power and energy separately; the billing related peak power is measured by averaging power over 15 minute chunks, and taking the worst one of a year. Alternatively it's also practical for such solar situations to bill for market rate price of the energy in each 15 minute chunk separately; this doesn't correctl…
> averaging power over 15 minute chunks, and taking the worst one of a year. What an interesting metric. Wouldn't even a very cheap and small battery (definitely small enough to keep inside an appartment) provide enough smoothing to, like, halve this peak number? You could rig it to not even output energy until you are beyond the current year's peak usage... How much money would you save this way? I just feel this nu…
The steps are pretty coarse - on my rate plan there are just 3 steps: 0-10 kW, 11-15 kW, 15 kW+. You're not going to surpass peak 10 kW in an apartment anyway.
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Not true. The largest battery systems in operation are primarily designed for short-duration grid support rather than long-term, multi-day backup. They can even bridge a single windless night. And this is talking about short term mismatch between supply and demand in a 24 hour cycle. If you consider the need to account for the yearly seasonal generation variation (which is far more dramatic as most of the developed w…
Absolutely true. I don't know why you're even talking about nuclear when that's not something an individual can do at their scale. It's not relevant to this conversation. But everything you've just said about it is wrong. LCOE, when LCOE is calculated correctly, is absolutely the right measure and absolutely includes the true system cost including storage to bring it up to a similar level of availability and decommis…
I have solar Li-ion and hybrid inverters at my home, basically because I foresee more frequent blackouts in the future. Part of the cost of my system is generously paid by poorer consumers, because I still have net-metering in my country (talk about subsides).
Nuclear power is one of the most insanely regulated industries due to the misinformed work of science denier green militants and populist politics. Talking about subsides ignoring all the red tape nuclear is a common tactic behind the propaganda of big finance and big green corrupt interests.
LCOE is absolutely the right measure only in two cases:
1) You have a financial interest on selling intermittent power or/and 2) You're hopeless ignorant about both the physics and the economics of a power grid.
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That's correct. In Pakistan, typically cities are broken up into housing societies. Each society is broken up into sectors/blocks, which are typically indexed by the alphabet(A, B, C, ...), but occasionally, one will see block M7 or sector B2 etc. In each such sector, each house has a unique numbered address. Some larger societies are first broken up into "phases" and then into sectors/blocks. Street numbers are typi…
I have to disagree. In Calgary, the streets are numbered and it's super easy to navigate between "16th St NW" and "18th St NW". Certainly easier to understand than "Go from St. Catherine's Street to Peel" in Montreal. Where they are not numbered, they at least have the name of the community. Edgemont, for example, has no numbered streets but the name usually starts with "Edge", making it clear what part of the city y…
Even GPS and being a native speaker of Japanese isn't enough to successfully navigate somewhere in Japan sometimes often enough that it's super common for businesses to include detailed access instructions on how to get to their business.
The amount of times I've seen my wife not even be able to read a place name here makes me wonder why they don't just do something slightly more sensible. A recent funny one was when city hall sent her some mail advertising some seminar and she couldn't read the name of the train station on the pamphlet, so she called city hall and enquired about it and the person she talked to couldn't read it either.
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EVs have giant batteries - they can be connected via their DC ports and charged/discharged via solar inverters - technically. The current spec for CCS and NACS doesn't allow for this (Chademo did, but they lost the 'format war'). Giant effing oversight on manufacturers' part if you ask me. Some people have managed to trick their cars into reverse charging via solar hybrid inverters and some custom hardware and it wor…
Replacing all the road vehicles in the US with 70 kWh BEVs would mean their battery capacity would equal about 40 hours of the average US grid power consumption. BTW, this will mean that EV charging is going to have to have variable rates, or else people will just ride over Dunkleflauten by charging up their EV at a charger, driving back, then using it to power the home.
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Absolutely true. I don't know why you're even talking about nuclear when that's not something an individual can do at their scale. It's not relevant to this conversation. But everything you've just said about it is wrong. LCOE, when LCOE is calculated correctly, is absolutely the right measure and absolutely includes the true system cost including storage to bring it up to a similar level of availability and decommis…
I was obviously talking about grid scale, that's what matters. I have solar Li-ion and hybrid inverters at my home, basically because I foresee more frequent blackouts in the future. Part of the cost of my system is generously paid by poorer consumers, because I still have net-metering in my country (talk about subsides). Nuclear power is one of the most insanely regulated industries due to the misinformed work of sc…
As demonstrated by the fine article, it is not the only scale that matters.
> Nuclear power is one of the most insanely regulated industries due to the misinformed work of science denier green militants and populist politics.
Nuclear power is a highly regulated industry for two very very good reasons
- It's incredible destructive power if you cut corners. See chernobyl and then realize that it was far from a worst case and every nuclear power plant has the capacity to do 1000x worse than that if enough corners are cut. No other form of energy, not even fossil fuels with global warming, comes close in terms of potential downside per kwh generated. And humans inevitably cut corners in the absence of a strong regulatory regime.
- It's incredible destructive power if weaponized, potentially resulting in species ending wars.
You're showing your own ignorance with regards to LCOE.
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That only applies if you connect it to the grid in each of those places, I believe.
I can't wrap my head around what off-grid balcony solar even means. Balcony solar is meant for apartment dwellers. Or detached home/townhome owners who don't want to spend on a rooftop install. You aren't installing balcony solar to go fully off-grid.
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Because storage is incredibly expensive and thus, for every GW of installed solar capacity you need and an exact another GW reserve capacity from other sources for the rare times when the sun doesn't shine (like, for example, during the night or during large spells of bad weather). Besides being intermittent, solar and wind are not really dispatchable, that is, the grid operator doesn't have many levers to control th…
All these problems become solved if you have realtime market pricing. Nobody would bother to install rooftop solar if daytime power was super cheap on every sunny day, yet expensive at night when their solar isn't working.