321–330 of 368 posts
Earlier quoted context omitted.
A little out of date now but: > As of June 2024, Nio had installed 2,432 power swap stations in China, including 804 along highways, representing the largest battery swapping network in the country. Nio aims to expand to 4,000 stations globally by 2025. By February 2025, Nio had 3,106 battery swap stations in China, with 964 located along highways. In January 2025 alone, Nio added 111 swap stations and provided 2,949…
From the country that brought you mass wastage of bicycles, now we get battery swapping. This is pretty much just a "gamble by deploying as quickly as possible making our system the standard if it catches on" type of investment.
I also wonder if it's a scheme to get people through the door and then leech off them with a lifetime subscription.
Earlier quoted context omitted.
> All in one systems with water heating are way too complex and _will_ fail relatively quickly, ... Can you offer some evidence of this? I don't see how adding a refrigerant to water heat exchanger after the compressor, before the reversing valve, could possibly hurt the longevity of a system. > ... mini heat pumps won't last 10 years, and by the time it dies you won't be able to find a replacement for your specific…
> Can you offer some evidence of this? I don't see how adding a refrigerant to water heat exchanger after the compressor, before the reversing valve, could possibly hurt the longevity of a system. The nearly infinite amount of forum posts about heat pumps dying prematurely and costing thousands and thousands to fix. You don't see how adding complexity on top of complexity in a complex system add points of failures ?…
I don't see see a heat pump as complex. It's a compressor, valves and coils. The complexity are the stupid computers foisted onto us.
> I forgot this is an american centric forum and things are just made cheap/disposable because "it's cheaper'
We don't have a choice. Do you? We're all at the mercy of the manufactures.
Earlier quoted context omitted.
One thing to remember is as it becomes more widespread line costs will go up (assuming they are subsidized by kwh use, which they generally are) and no-sun power prices will increase as it's the only time when the grid needs power from non solar producers and they still need to cover cost incurred while they're not producing. That will push the economics towards completely off grid systems as more people adopt solar,…
My partner works in the field and we once talked about this. I think the idea is that individual consumers’ and businesses’ batteries can serve the grid as needed. For example, if your car is fully charged and you don’t need it today, it can top up local needs. So I think the writing isn’t on the wall yet for line price going up, although I’m of course talking of a) Belgium, and b) a future that could go wrong if uti…
Earlier quoted context omitted.
There's going to be a bloodbath in that market in the next years. There are a lot of battery producers and most of them are not producing at full capacity. At the same time, manufacturing cost is dropping as well. Some battery makers are producing batteries at a cost level of around 60$ per kwh. At that cost, the 16kwh battery would come out below 1000$ (not the same obviously as the product price). Sodium ion might…
I'm not so sure. There are a lot of large-scale applications that would gobble up battery supply if it hit a certain price point. Grid-scale storage and datacenters, for example. If prices for residential gear falls too much, I expect the manufacturers would just stop making it and focus on the commercial options instead.
If a datacenter installs a solar array + a giant battery pack for their power, that's much better than them heavily relying on a natural gas plant to generate power when the lights are out.
Earlier quoted context omitted.
Here in Europe, we got more than a month's worth of foggy, cloudy weather (something that looks like will keep being a thing), which is something I became painfully aware of as an owner of a solar setup. No amount of battery banks can tide over such a long stretch. By the way, let me ask you - considering your location, you must be getting a lot of snow, how do you deal with it, is it a problem? Panels are quite hard…
I do indeed get a lot of snow. In January and February it snows roughly once every two days, although usually in small amounts. Fortunately I have a ground mount. The bottom row is roughly at waist height. I can (and have been) sweeping the panels off with a large push broom. Because my array is so large, I can only reach the bottom half of the array. But this usually is enough. When the panel starts to generate powe…
Earlier quoted context omitted.
There's going to be a bloodbath in that market in the next years. There are a lot of battery producers and most of them are not producing at full capacity. At the same time, manufacturing cost is dropping as well. Some battery makers are producing batteries at a cost level of around 60$ per kwh. At that cost, the 16kwh battery would come out below 1000$ (not the same obviously as the product price). Sodium ion might…
One thing to remember is as it becomes more widespread line costs will go up (assuming they are subsidized by kwh use, which they generally are) and no-sun power prices will increase as it's the only time when the grid needs power from non solar producers and they still need to cover cost incurred while they're not producing. That will push the economics towards completely off grid systems as more people adopt solar,…
Earlier quoted context omitted.
Who spends $50K on heat pumps? They're not anywhere near that expensive.
I'm talking about geothermal water/water installs for central heating. No one is heating their place with air/air heat pumps besides americans who haven't figured out that heating spaces via air is shit tier in term of comfort and efficiency
Earlier quoted context omitted.
> Inrush is exactly what it says it is, it's inrush current These are not terms commonly used in the industry, thanks for the clarification. > Lots of appliances in your home have a large inrush, much larger than the breaker they're on. And inverters are designed to compensate for short term surges too fyi. The 18k provides 65A for a few seconds as an example. > well, hell, how the hell you gonna charge ~40kwh of bat…
>These are not terms commonly used in the industry, thanks for the clarification. It's such an industry term that it's literally a named feature on multimeters. >The 18k provides 65A for a few seconds as an example. Yes, you'll see I gave you that spec in the opening comment. It's not a good spec for a whole home hybrid inverter. >the 18k can push 50A on each leg and most residential are sized at 150a or 200A That's…
I would respond to all of your items individually again but its clear by this comment I can't you seriously and now you're just trolling.
this can be disallowed in the UK, depending on their agreement either their provider. the OP is exporting way more energy than they have ever produced through solar; in effect they’re selling back off-peak energy to the grid, which is making a profit
UK off-peak energy is mostly surplus of wind, while the peak is burning natural gas. Feeding off-peak energy back to the grid at peak times makes it greener.