Resonosity

What do we mean by effective?

One might say that the effectiveness of reddit is its niche communities that allow each and every user to find somewhere they feel like they belong. Not only this, the complexity of niches gives rise to interesting information that bubbles to the surface and front page of the platform where more users have exposure. One might contribute this to the quantity of users on reddit's platform, and also the discoverability of the platform itself.

Personally, I think Lemmy is decently effective now aside from the saturation in political and tech news and memes. I think things will get better as for-profit companies squeeze more and more people out of their platforms, and people look to alternatives rather than dropping their digital consumption habits.

I do think discoverability is still a downfall of Lemmy, from both internal and external views. I want to better find /communities from inside the platform and via a search engine should my use and value of Lemmy increase. Wonder how development has gone on this front.

Ultimately, the FOSS nature of Lemmy is one of its greatest strengths. It can improve over time, ripping features from the big players without the destiny of being killed eventually if not profitable. I think this characteristic alone gives rise to the potential of Lemmy to be very effective over time.

/s

What about a BlackRock break-up

Yeah I also saw the similarly to ALM in the comments of this post.

Yes, women also abuse men (and also other women), but the vast majority of cases that appear before a judge involve men as the perpetrators. I'd want to tackle the big problems first if I have to prioritize cultural (and sexual) progress of a society.

But I also recognize bias exists at pretty much every level of this process, inside or outside of a courtroom. I think we should still value evidence over hearsay, as was demonstrated in a case like Depp v. Heard, yet show compassion for victims because they need to feel safe to speak up, no matter the gender.

It boils my blood that Republicans would blame Democrats for not sending enough aide during these times, all the while Republicans vote against initiatives drafted up by Democrats to combat these issues specifically.

They use issues like this entirely to rouse their base and keep their support.

I like to think of the distinction in a de jure vs de facto way.

If all the evidence we have of a species is them consuming autotrophs, then we do mental gymnastics and induce that they are 100% herbivores.

Of course this also leaves room for an herbivore's potential to consume heterotrophs, in which case our knowledge would have to update and reflect reality. Maybe 99% herbivore, 1% carnivore.

And at that point, we may still do mental gymnastics and call species herbivores because that is their normal behavior, where their abnormal behavior is shown due to abiotic or biotic factors, perhaps from loss of habitat or removal/introduction of species in the food web, etc.

Edit: for humans, I'd say we can classify different humans differently because of the times we live in (it's so easy to be a vegan nowadays) and our natural, higher moral concepts and empathy.

Lines, network transformers, insulators, surge arresters, reactors, sectionalizers, etc.

But yes

It's two sided.

Yes you waste money by not exporting the electricity-transformed version of your resource (wind, sun, chemical potential, etc.).

But on the flip side if you export lower across your whole site, this means more losses at the inverters which can shorten operational lifetimes and lead to quickened inverter failures and needs for replacement. Those maintenance costs eat into your profit as well.

As someone in the industry, I'd imagine that inverter-based producers really just react to the rate structures of whatever grid and utility they hook up to. If the incentives of that utility favor one mode of operation during supply-demand mismatches - such as complete site curtailment - then that is what generators will do. If the incentives favor partial generation where only certain blocks of your solar or wind or BESS plant are switched off while others remain on, then we could see more producers do that.

Ultimately though you need to have a way to operate your site in those conditions to help balance out operation and nonoperation. If whenever a curtailment signal comes to your site, and in response you always shut off Block B while leaving Block A on, then Block A will experience accelerated lifetime degradation over Block B. Inverters, transformers, cables, panels will fail faster in Block A than Block B. But if you could rotate your curtailment/demand response such that certain blocks/strings are used sequentially and that lifetimes are averaged out, this might solve the problem. Think about how farmers rotate which crops they plant in which of their fields to avoid famine and soil degradation.

I think demand response is taking off in the utilization markets like in buildings and industrial settings, but really I think the principles we've learned from that should be carried over to generation markets as well. It's only a matter of time as the industry matures and smart technology penetrates the grid and generation markets.

You can do more with them too actually. You can ramp down the AC power production incrementally to meet curtailment requirements, in theory. When you do that though you subject your inverters to greater strain/losses and less efficiency which shortens your lifetime.

If inverter-based producers in solar, wind, and/or BESS want their sites to last for 30-40 years so that ROI is achieved via operation, then it is in their interest to protect their equipment and operate as much as possible at rated conditions or de-energized conditions.

You might think that it would make sense to have more of a slider control between ON and OFF to save everyone, from producers to grids to consumers, but my guess from being in the industry is that grids don't really supply incentives for that kind of operation. If they did, maybe you'd see more variable control at utility- and community-scale levels.

I'm in solar/BESS, and I mean more and more DER sites are making use of string inverters which break out arrays into greater chunks than with central inverters. With those, you have more granularity of control where you can drop entire blocks/strings at a time to fall to your curtailed export rate.

You might ask yourself though why DERs can't just ramp inverter outputs up or down to match curtailment automatically across a whole site. You can absolutely do that, but what happens is your solar or wind resource stays high on the DC or low frequency (LF) AC side, respectively, while power frequency AC is low on the other side of the inverters. This is referred to as DC:AC ratio in the biz, and the higher that ratio, the more losses your inverters experience and less efficient they are. This also puts a huge strain on your inverters and can lessen their operational lifetime.

But really, DERs tie into the grid at distribution level and so they don't fall under the regulations of FERC & NERC (at least in North America). This means that smaller producers don't have the same requirements for control as do utility-scale players, so the incentive to control these string inverters at that granular level isn't there. It's much easier to just trip the main breaker and wait until the utility gives you the go ahead to turn back on.

I suspect that at lot of producers may want to look into greater control capabilities in the future, but this also depends on inverter OEMs too allowing that control.

One solution to what you're describing is to expand the grid. If your grid stretches half the planet, when the East starts to experience night, the West still experiences day and can ship electricity from renewables to the East to make up for their self curtailment. The same goes for wind where if one location on the planet doesn't experience wind, odds are another location does and the power can be shuffled around.

Another option is to build out more battery storage such that any clipped energy from solar or wind - that is, the energy that can be generated from your solar or wind resource but that can't be exported because it would overload your inverters or transformers or exceed your PPA agreement with your utility - is stored and can be exported for 2-4 hours as the sun goes down or wind dies out.

Not a lot of renewables sites are colocated with battery storage, but more and more are.

The original commenter's (OC's) point has nothing to do with renewables' reliability.

It is entirely to do with generation vs demand. Grid operators could ask other generators like coal, nuclear, hydro, etc. plants to curtail so inverter-based renewables can export power, but that's not likely because those producers can't ramp generation up and down as easily.

Grid stability is a problem when you have overcrowding of generation without enough demand on given feeders. This is moreso an issue with the utilities anyways and how they plan their transmission and substation upgrades.