this post was submitted on 27 Sep 2023
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Solar power and storage prices have dropped almost 90%::undefined

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[–] tun@lemm.ee 63 points 1 year ago

85-87% reduced in last 10 years

[–] cyberpunk007@lemmy.world 43 points 1 year ago (22 children)

I was still quoted 40K CAD. 20 year ROI. Not feasible for me.

[–] LordKitsuna@lemmy.world 12 points 1 year ago (5 children)

If you are willing to DIY you can cut that number dramatically. Out of curiosity what was the size of the array in that quote and did it include battery storage if so how much chances are that you can cut it by anywhere from 50% to 75% if you're willing to Simply purchase directly and install yourself. The amount that installers charge is absolutely asinine usually 50% or more of that quote is just the installation which is in the same because it's not difficult at all. People like to act scared like oh that'll be difficult or hard or dangerous, it's extremely simple you're dealing with DC which is very straightforward everything is very clearly labeled on that equipment and it's quite simple to do yourself

[–] rustyricotta@lemmy.ml 8 points 1 year ago (2 children)

Is there a go-to source for diy product and instructions? I'm interested in doing this in the near future.

[–] LordKitsuna@lemmy.world 4 points 1 year ago (7 children)

I can't think of any One-Stop shop for literally everything, but there is a lot of great material out there both on forums and on YouTube. If you take it one step at a time and look at each individual piece of the installation you'll be able to find fantastic instructions for all of them fairly easily.

If you are in the US I recommend purchasing from signature solar, they have a lot of great bundles that will both save you some money and get you everything you need. I'd also say they have the best battery storage options, their rack mount batteries and their new wall mount battery are both fantastic and very easy to work with. They also sell solar panels by the pallet which helps you get a nice large array at a good price.

If I had to pick the hardest part it would just be making sure you get the grounding right on the inverter, if you're not careful it's pretty easy to end up with a ground Loop which isn't particularly dangerous but it will cause lots of weird little issues like flickering lights and other annoyances. But it's fairly easy to correct it it's usually just a result of people connecting both the input and the output on the inverter as well as bonding the secondary panel to the primary panel which creates a ground loop. The solution is as simple as just don't connect to the input power ground to the inverter only connect to the output ground so that it has to go through the ground Bond on the panels

It will definitely sound like a lot, but again if you just take each individual piece by itself it's very straightforward very simple and you'll be able to get it done while saving an absolute asinine amount of money compared to an installer.

I will warn you that if you try to do gridtie, which is where you're able to send excess electricity back into the grid. That comes with a lot more red tape and can get a lot more complicated. I personally did an off-grid setup, which still uses the grid as a possible input so if my batteries are dead and there's no sun out I can still use the power like normal it's just not capable of sending Excess power back out into the grid so there's a whole bunch of red tape that I don't have to worry about.

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[–] partial_accumen@lemmy.world 5 points 1 year ago* (last edited 1 year ago) (11 children)

Is that paying cash for the solar system or financing? Financing can devastate the ROI with interest rates today. I'm looking at as long as 12 year ROI with possibly as short as 7 year ROI if I consider the USA's federal tax incentives. My slightly southern latitude (a border state with Canada) also likely contributes to slightly higher generation results using the same equipment.

How are the government incentives in Canada? I'm super envious of your great hydro power, my neighbor.

[–] JJROKCZ@lemmy.world 9 points 1 year ago (9 children)

Bruh I got quoted 50k in St. Louis last year, would take decades for roi

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[–] baked_tea@lemmy.world 4 points 1 year ago

Well it's the company/ies not the product

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[–] hark@lemmy.world 21 points 1 year ago (6 children)

I heard the prices dropped a lot around 2012 too. Why are solar installations still rare?

[–] Jimmycakes@lemmy.world 17 points 1 year ago (6 children)

In america the installation costs as much as or more than the panels. Until the install costs come down no one is going to do it.

[–] Octavio@lemmy.world 13 points 1 year ago

About a third of the houses in my neighborhood have gone solar. My household was one of the first to do it about five years ago and every time I go for a walk I notice a new one that popped up. Our solar system payment is about half what our electric bill used to be and we make more electricity than we use every month of the year, even with charging a plug-in hybrid car. Far from “no one is going to do it.” I frankly don’t understand why more people don’t do it.

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[–] Pirky@lemmy.world 9 points 1 year ago* (last edited 1 year ago) (12 children)

Prices for the batteries and panels themselves have dropped. Just not the cost to install them.

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[–] Professorozone@lemmy.world 8 points 1 year ago (1 children)

Where I live, power companies successfully lobbied to charge a minimum fee to people using a grid-tied system (as opposed to off-grid). So now a bill that might have been lowered to $9.00 will cost the minimum fee of $30.00 (actual example). You might say, that $30.00 is still a very low power bill but how long will it take before that starts going up? They are also lobbying to buy power from homeowners for less than they charge homeowners. This was a huge turn-off for me considering the high cost of installation. When I asked the solar installer about off-grid installations, he said they weren't allowed to offer those. Not sure why but got the impression it was a government thing and not a company thing. Not sure.

[–] Cryophilia@lemmy.world 4 points 1 year ago

It's a company thing. Government can't force you to pay for electricity if you don't want it.

However off grid setups are more complicated and require a different design philosophy, so most solar companies don't do them. You have to shop for companies that specialize in off-grid setups.

[–] htrayl@lemmy.world 8 points 1 year ago

They are not rare. It is the fastest growing energy production mode and is growing faster every year.

Residential installations lag behind the commercial due to installation costs, but they are blowing up as well. I can walk around my neighborhood and see a couple dozen homes with it.

It's also highly regional. The further south in the northern hemisphere the more common.

[–] evranch@lemmy.ca 4 points 1 year ago (3 children)

Here in Canada prices have stayed stubbornly high. It's the Canadian way.

I have panels that I bought for under $0.50/watt that they were clearing out at the local wholesaler years ago. Haven't been able to find anything even near that price range since, and I'm an electrician with access to wholesale pricing.

I have found some decent prices recently but they're all on full pallet lots. So you need to be a business dedicated to solar installs to get a fair price, and those businesses obviously don't pass the savings on as that's not the Canadian way.

Batteries are an even worse situation! If you live here and want storage, I hope you like lead-acid.

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[–] jetsetdorito@lemm.ee 16 points 1 year ago (3 children)

POV reading this headline while paying $0.4-$0.5 /kWh

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[–] CptOblivius@lemmy.world 14 points 1 year ago (3 children)

I looked into getting solar installed. Best I could get in my area was $45k for a 10kW system or $97k for a 20kW with 2 power walls for storage. F that, even with government subsided rates.

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[–] 0ddysseus@lemmy.world 13 points 1 year ago (4 children)

Ah yes. This is why batteries in Aus cost the same as they did 10 years ago. Capitalism working as intended

[–] zephyreks@programming.dev 10 points 1 year ago

Think of all the profits you're delivering to shareholders!

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[–] naut@lemmy.ml 12 points 1 year ago

If we use tax money, if it is important for entire world and survival of humans, then we wouldn't even care or notice

[–] tony@lemmy.hoyle.me.uk 10 points 1 year ago (1 children)

Maybe raw battery cost has reduced but installed storage is 30% more expensive than it was a couple of years ago, and it was too expensive then..

[–] zoe@infosec.pub 3 points 1 year ago* (last edited 1 year ago)

probably when using carbon cathodes instead of cobalt, the energy density drops from 300wh/kg to just 150wh/kg, so u would need extra anode/electrolyte mass to store the same amount of energy.i bet that those prices hikes are a result of diversion from rare earth metal mining..but just a guess

[–] zephyreks@lemmy.ca 5 points 1 year ago

Thanks, China.

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