Live data from Hacker News

Solar panels reduced my electric bill in 2022

mattbruenig.com

491–500 of 510 posts

Re: Solar panels reduced my electric bill in 2022

#491
post #485
post #436

Earlier quoted context omitted.

>Underpriced use of public land sure sounds like a subsidy to me! I have no problem with raising lease rates for Federal land to market rates. >>US gas is cheaper than elsewhere in the developed world because a) the US is self-sufficient in terms of supply >Oh, I was unaware that the cheap gas phenomenon started in 2008 when we started approaching energy independence. Thanks Obama, I guess. Oh, come now. It is a fact…

>I have no problem with raising lease rates for Federal land to market rates. I don't care what your opinion is. Again, just pointing out that it is a subsidy. >Oh, come now. It is a fact that, both historically and today, part (not all, but part) of the reason why US gas prices are lower than in the rest of the developed world is because the US is relatively self-sufficient. That's simply not true! 2008 was the begi…

>That's simply not true! 2008 was the beginning of the trend toward energy self sufficiency; please look at the data [0]. The US was far from self-sufficient for most of the 20th Century.

Oh, good grief. The second sentence of your cite is "Up to the early 1950s, the United States produced most of the energy in consumed."

Let me repeat:

* The US was self-sufficient in oil until the 1960s.

* The US could always have been self-sufficient, or reasonably close to it, especially with Canadian supply. It would have been difficult/very expensive at times, but it could have been done.

* This is not true of the rest of the developed world. The Gulf War was fought to maintain supply to Europe, not the US (although the US benefited from the overall lower global prices as a result).

* Since 2008 or so fracking has brought about a second period of US self-sufficiency without most of the difficulties that would have been necessary in the second half of the 20th century.

>This is hard to follow

You know exactly what I meant.

You wrote:

>the US Federal government subsidized your gas (ever wonder why US gas is cheaper than Canada/EU?)

Even if you weren't trying to insinuate with the word "subsides" that the US wasn't actually giving out huge handouts to oil companies, that's what 99% of readers would take away from your statement.

>Again, pricing externalities does not work that way. It's not a "pay to solve the problems" thing, it's a "make the true cost apparent to the consumer" thing.

"Pricing externalities" implies that there is some sort of closer relationship in other countries between the price of gas and its "actual" cost (in terms of long-term environmental impact), including solutions for same. As I said, we both know that this is almost never the case.

As for affecting behavior in the here and now, higher gas taxes in, say, rural France or Ireland does not mean that French or Irish farmers are less willing to use gas-fueled trucks to carry produce to markets, because they have no alternative (at least right now; maybe this will change in the future with EV trucks). It means that they pay more per gallon to do so than their American counterparts. Period.

>This is the most wildly incorrect part of your comment. Subsidies skew supply/demand curves, both of which have slopes.

I would never deny that subsidies skew behavior. My point was that said "subsidies" were, even in the EESI paper you initially cited, relatively small compared to price per gallon or the overall petroleum market's size and behavior. This was true with the $0.34/gallon figure I initially erroneously calculated, and is certainly true for the correct ~$0.03/gallon figure (again, a "worst case scenario") I provided later! Feel free to tell people about how the US government distorts the gas market at three cents a gallon. I fear that the scale of their reaction will disappoint you.

>And again, circling back here, all I'm trying to say is that the US meaningfully subsidizes energy, which they do. I honestly think it's a good thing! It's been the economic engine of growth for the US. I don't think we should stop! (notice how you assumed I had an agenda just by trying to state facts, maybe examine that a little...)

This is you rapidly beating a retreat.

You began your first reply to me with

>Oh fun! I love when people Dunning-Kruger themselves on accounting (I literally just sat up straight in my chair!)

Basically, you saw the chance to unleash your superior accounting skills. Nothing wrong with that; I've certainly enjoyed doing so many times for things I know more about than other people.

You then said

>Let's go through your argument (would you believe I did both read and understand the document I linked!?),

Based on your missing the second sentence of the EIA document you cited above, the answer remains "No, I do not believe that you actually read the EESI paper before citing it the first time".

You are, of course, by now realizing that although you know more about accounting than me, all you have done is to "prove" that US gas is "subsidized" by the munificent sum of three cents per gallon. I thank you for doing so.

Re: Solar panels reduced my electric bill in 2022

#492
post #416
post #376

I wonder what causes this high electricity use. Not because it's any of my business, it's just genuine curiosity. He never reveals actual use, only savings. Still, at 0.25$ per kwh charged and an average monthly saving of 210$, we can work out that 860 kwh/month was saved, which amounts to 10,320 kwh per year. Actual use may be (far) higher, but we don't know. Just these savings alone is triple my total electricity c…

We're a family of four in the Midwest (US), and we average about 40 kwh/day. Roughly 14,000kwh annually. The only gas stuff we have is our hot water heater and furnace. Our A/C gets a work out in the summer when it is pretty warm (at least this year). I do about 8 loads of laundry a week, and I'm sure that my dryer is a big user of electricity. We have a lot of computers in the house between the four of us; three des…

Thanks, always useful to hear about real world examples.

Re: Solar panels reduced my electric bill in 2022

#493
post #438
post #376

I wonder what causes this high electricity use. Not because it's any of my business, it's just genuine curiosity. He never reveals actual use, only savings. Still, at 0.25$ per kwh charged and an average monthly saving of 210$, we can work out that 860 kwh/month was saved, which amounts to 10,320 kwh per year. Actual use may be (far) higher, but we don't know. Just these savings alone is triple my total electricity c…

These are good and valid questions. Relating to our solar panel install (refer another comment of mine in this thread) we went through with one of those plug in power meters and identified about spot and average power draw for about 80 different devices, spreadsheeted those data up to try to get a feel for where our power was being consumed -- as often times we would hit 40-50kWh/ day consumption. Predictably (in ret…

That's clever. We also have a central smart meter in the house. It has a standard port (I believe it's called "P3") that allows you to read out usage. There's devices on the market that plug into this port, connect to your Wifi and then make it available to a mobile app. It reports total power usage in real time and gas usage with a delay of 15 mins.

I would recommend anyone to do such tour of the house. You're very likely to learn a lot and be in for a shock here and there. Totally agree with you that most people are far away from a state of micro managing energy, there's big wins to be had with little sacrifices in convenience.

And yes, that was the background of my question: If I'd save 210$ in electricity per month, my very first question would be why I even use that much in the first place. Could be valid reasons for it, of course.

Re: Solar panels reduced my electric bill in 2022

#494
post #222

Earlier quoted context omitted.

In the Netherlands you a fixed price for being connected. The amount varies on the size of the connection. Usually 1 phase 40A is as expensive as 3 phase 25A. Anything above that easily triples in price. Aside from this you have net metering still and you pay for what you consume. No “usage bundle” is included in the connection fee. Also, the companies for infrastructure and that provide the actual energy are separat…

> Usually 1 phase 40A is as expensive as 3 phase 25A. Anything above that easily triples in price. That's...not a lot of power. O_o Is it common to get that little amount of power? I have 200 amps going to my house, but the master breaker on my panel is 160 amps. My car charger alone is 48 amps. When I had an electric stove, that was on a 40 amp breaker.

You have to compare voltage, too.

Re: Solar panels reduced my electric bill in 2022

#495
post #491
post #485

Earlier quoted context omitted.

>I have no problem with raising lease rates for Federal land to market rates. I don't care what your opinion is. Again, just pointing out that it is a subsidy. >Oh, come now. It is a fact that, both historically and today, part (not all, but part) of the reason why US gas prices are lower than in the rest of the developed world is because the US is relatively self-sufficient. That's simply not true! 2008 was the begi…

>That's simply not true! 2008 was the beginning of the trend toward energy self sufficiency; please look at the data [0]. The US was far from self-sufficient for most of the 20th Century. Oh, good grief. The second sentence of your cite is "Up to the early 1950s, the United States produced most of the energy in consumed." Let me repeat: * The US was self-sufficient in oil until the 1960s. * The US could always have b…

> Oh, good grief. The second sentence of your cite is "Up to the early 1950s, the United States produced most of the energy in consumed." Let me repeat: The US was self-sufficient in oil until the 1960s.

Good Greif to me?!?! You're saying that America making enough oil for the 70mn registered cars in 1960 [0] is evidence that it could make enough oil for the 225mn cars registered in 1999? [1] Don't even get me started on miles driven!

Aramco began Saudi nationalizion in 1950, and you claim that the US chose to up its reliance on them during that period? You have a very interesting understanding of O&G, my friend.

>You know exactly what I meant.

Lol. Ok. I guess I do, then.

>Even if you weren't trying to insinuate with the word "subsides" that the US wasn't actually giving out huge handouts to oil companies, that's what 99% of readers would take away from your statement.

Lol. Ok. I guess that's true, then.

>"Pricing externalities" implies that there is some sort of closer relationship in other countries between the price of gas and its "actual" cost (in terms of long-term environmental impact), including solutions for same.

Again, my entire point is you have no idea what you're talking about here. All that consumption taxes do is disincentive consumption. Per my last comment, often to make the taxes more popular, proceeds are used to "address" the underlying problem, but that's theater/bad governance that ignores the fungibility of tax revenue.

>As for affecting behavior in the here and now, higher gas taxes in, say, rural France or Ireland does not mean that French or Irish farmers are less willing to use gas-fueled trucks to carry produce to markets, because they have no alternative (at least right now; maybe this will change in the future with EV trucks). It means that they pay more per gallon to do so than their American counterparts. Period.

Boy I love a good binary. You don't think higher fuel costs encourage them to sell to more local distributors with lower transportation costs? I mean, we ship roses on airplanes from Ecuador en masse because of cheap fuel! [2]

>Feel free to tell people about how the US government distorts the gas market at three cents a gallon. I fear that the scale of their reaction will disappoint you.

Again, it's amazing to me that you think that these subsidies are direct consumer-facing price supports and I don't know how to explain more clearly that they are not.

>This is you rapidly beating a retreat.

What? Where's the contradiction? I don't care about your politics, I just want you to understand the situation better.

>You began your first reply to me with

Oh fun! I love when people Dunning-Kruger themselves on accounting (I literally just sat up straight in my chair!)

Yeah, because you made false claims about accounting? Are we just entering the "who is going to win" mode? Because then, by all means you've won if that's important to you, but please don't let it cloud your ability to incorporate new information (even if that new information goes against claims you made earlier. That's OK! That's learning!)

>Based on your missing the second sentence of the EIA document you cited above, the answer remains "No, I do not believe that you actually read the EESI paper before citing it the first time". You are, of course, by now realizing that although you know more about accounting than me, all you have done is to "prove" that US gas is "subsidized" by the munificent sum of three cents per gallon. I thank you for doing so.

This is tough to follow too, but again, small brain over here. I guess once I see the light about how (in your opinion) small subsidies aren't subsidies and subsidies to suppliers are best understood in consumer-facing terms, then I'll understand.

BTW, if corn is subsidized by like $5bn/year in the US, what's that per kernel? I bet a really small number!

[0] https://www.fhwa.dot.gov/ohim/summary95/mv200.pdf [1] https://www.bts.gov/content/number-us-aircraft-vehicles-vess... [2] https://www.routesonline.com/airports/7699/corporacion-quipo...

Re: Solar panels reduced my electric bill in 2022

#496

Earlier quoted context omitted.

Yes, that price is insane! I don't have A/C, do have net metering and do have solar panels, so I intentionally picked the plan with the highest costs during the day in the summers and I pay 24c/kWh only in peak hours during the summer. Author may be a high energy user and on a tiered monthly-usage plan rather than a TOU plan; if that is the case than the solar panels may be saving energy billed at the highest margina…

California rates (not sure the OP is in California, but still) are just high. Lowest Off-Peak rate is $0.22/kWh in my area, and On-Peak (4-9pm) can be as high as $0.62/kWh.

I'm on SCE and that seems high to me.

Re: Solar panels reduced my electric bill in 2022

#497
post #388

Earlier quoted context omitted.

I have a house from 1909, with relatively poor insulation, by modern standards. We heat the house with a heat pump and a 100 m deep borehole. The heating of the house (180 m2 and a cellar) is the main energy consumption. The total was 22 000 kWh last year (including about 3 500 kWh for an electric car). An old house with electric heating and cooling could well be what he has. When we moved in the electric consumption…

"An old house with electric heating and cooling could well be what he has." Definitely could be the case. Your situation is interesting in that it is opposite to the order of transitioning towards a heat pump over here. Perhaps a heat pump was your starting point as there was no gas connection? Over here we start with gas heating (almost every house) after which we try to transition towards a heat pump. They say you…

Before I owned it, our house had an old oil/wood burner. And our heat pump doesn’t need help from an electric heater until it goes below -15C or so. But then it is a 20 year old heat pump.

Re: Solar panels reduced my electric bill in 2022

#498
post #416

Earlier quoted context omitted.

We're a family of four in the Midwest (US), and we average about 40 kwh/day. Roughly 14,000kwh annually. The only gas stuff we have is our hot water heater and furnace. Our A/C gets a work out in the summer when it is pretty warm (at least this year). I do about 8 loads of laundry a week, and I'm sure that my dryer is a big user of electricity. We have a lot of computers in the house between the four of us; three des…

Biggest culprits in energy consumptions are heating appliances. To save some bucks I usually set my thermostat 1 or 2 degrees under my ideal temperature and wear warmer clothes and I never used a dryer, I don't mind having clothes hanging on a rack on a corner of my flat.

I think my AC (even though new) is the biggest user, though the dryer is probably second.

Re: Solar panels reduced my electric bill in 2022

#499
post #462
post #410

Earlier quoted context omitted.

I just got solar panels installed (in Berkeley, CA). I can confirm that this setup (you feed into the grid, and then get supply back from the grid) was the primary option suggested (it was possible to request and receive a self-contained "behind-the-meter" system, but was considered unusual)

You've actually done this recently, so probably you are right, but I'm still doubtful. Are there two separate unidirectional meters involved? And the solar panels aren't hooked into your electrical panel or in house electrical system in any way? What you are describing isn't impossible, but it's an odd default, and would seem to be a terrible deal for homeowners now that net metering is being phased out. While it's u…

TL;DR you're probably right :)

Ah, I see what you mean now. Sure, I can't absolutely confirm that, from a physical point of view, all locally-generated power is sent out and comingled with grid power. Rather, from an _administrative_ perspective, it's the case that I don't have any "exclusive claim" on the power that I generate, and my house's power is not independent of grid outages. It's quite possible - likely, I agree! - that the power that I generate is locally consumed; but, from an administrative and practical perspective (esp. lack of independence from the grid), the system "behaves as if" that is not the case.

So - yes, you're probably right!

> would seem to be a terrible deal for homeowners now that net metering is being phased out

Whether you're right or not from a physical perspective, this is absolutely the case from a numerical perspective - which is why I'm extremely glad that I got mine installed in the grace period during which NEM 2.0 pricing is still in effect despite NEM 3.0 being approved (and becoming active in April).

Re: Solar panels reduced my electric bill in 2022

#500

Earlier quoted context omitted.

I have rooftop solar - and eventually I will need a new roof - which will require taking the solar panels off and then mounting them back on again - labor costs. Additionally the inverter will fail at a certain point and that is not cheap. Given some ballpark estimates, I do feel like it could simply be a wash financially.

How old’s your roof? Just wait until it’s time for new panels. You’ll want new panels after a couple decades and change for the significantly improved performance. Panel work will be routine for roofers in the 2030s and 2040s. If you installed them on an old roof, you made a mistake, and your municipality probably shouldn’t have approved the work in the first place. Your replacement inverter should only cost $1-3k in…

12 year roof. Older than I would have liked.
Post reply on HN