r/solar

▲ 2 r/solar

PA resident solar net metering program

Waiting on an engineer to call me tomorrow. Had a door knocker (immediately skeptical) ask about adding solar panel to my newly built pole barn with metal roofing. I am doing my homework to see how good this program is. I was already told I don’t own the panels. They have a guaranteed output. A battery backup is included. I was hoping others could guide me in what to ask and look out for.

Panels have a 15 year life line, then what?

How many customers do you have in my region?

What happens if your company closes?

Who recycles the panels/battery?

Damage liability?

Selling house with their panels on it?

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u/AthleteSad2139 — 9 hours ago
▲ 9 r/solar

How would you configure this?

I am building a cottage on top of a ridge in a fairly treed area, many of the problematic trees would be on a neighbor's property so cutting isn't an option.

The roof is east and west facing, main roof is a 16/12 pitch, the top roof on the left over the bedroom is about a 2/12 , same with the lower bathroom roof. The other side, the West facing is similar but instead of the litter bathroom, it has a large 12x14 screen in porch with about a 1/12 pitch.

My inverter/charge controller has a minimum PV voltage of 120v which is the issue, currently even with my 4 panels, I need them in good sun to produce anything and then the slightest shading on a single panel can kill my loop.

I was thinking 2 strings of 6 panels, one on each side, maybe 2 on the bedroom roof and 4 on the main, mirror on the other side?

u/Tricky-Car-5004 — 12 hours ago
▲ 16 r/solar+1 crossposts

Is this flaw going to affect my solar panel's performance?

I recently bought a solar panel from a guy on Facebook Marketplace. It's most fine, and is functioning decently well, but I noticed this flaw in one of the panels. Will this impact the performance of this segment of the panel? Thanks in advance for y'all's help, and lmk if you need a higher-quality picture.

u/yb4zombeez — 15 hours ago
▲ 0 r/solar+1 crossposts

Unpopular opinion: Home batteries are a massive waste of money for a lot of systems.

Every single time I talked about installing my system, the internet "experts" and some of my buddies came out of the woodwork to tell me the exact same thing: "If you don’t get a battery, the whole system is completely pointless."
Well, it’s been up for three months now, and I’m glad I ignored them.
My setup is an 18.6kW solar array with a 17kW Huawei inverter. Absolutely zero battery storage. Instead of dropping thousands on chemical storage just to buffer a measly 4–6 kWh a day for most of the year, I did something else: I put in a public-facing EV charger. It gets used daily by tourists, and I charge 45c per kW.
If you look at the stats from yesterday, you can see exactly why a battery makes zero sense for my use case. That massive green and orange block on the graph is peak production matching my peak consumption perfectly. The EV charger is doing the heavy lifting right when the sun is hitting hardest. I am directly consuming and monetizing the energy the exact second it’s generated.
The numbers from yesterday alone (04/07/2026 in the screenshot):
Total generated: 116.42 kWh
Consumed straight from PV: 69.63 kWh (That means 93.99% of my daily power came directly from the sun)
Fed to the grid: 46.79 kWh
Pulled from the grid: A grand total of 4.45 kWh
I’ve already hit 7.49 MWh of lifetime generation in just three months.
On top of the day-to-day charging, part of my roof faces North-West. In the winter, a battery would just sit there completely empty, acting as an expensive paperweight.
People need to stop treating batteries like a mandatory rule of thumb. If your daytime load matches your peak generation—or if you can actually monetize your solar noon like this—a battery is just a black hole for your ROI.
Change my mind

u/Old_Statistician2749 — 22 hours ago
▲ 2 r/solar

New homeowner who inherited solar panels

I recently purchased a home in Illinois (comed). the solar panel was installed in 2023 and is fully paid off. I got my first bill - and realize that I needed to do some things to connect the solar to the grid (I had no idea of this).

I just want to make sure I do it right! I know some rules changed and am trying to figure it all out.

unfortunately the company that installed the panels is out of business (sun power).

is the best thing to do to start with comed and ask them what I need to do?

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u/i4k20z3 — 18 hours ago
▲ 2 r/solar

Solar in Massachusetts

This is a chart from ISO to Go that shows actual energy use in New England yesterday. Am I reading this correctly when it looks like almost 25% of the electricity used during the day at the peak came from home solar panels? This seems way too high, but it it’s true that is an amazing statistic. I’m happy to be contributing to that since my ACs likely used every electron my panels pushed out yesterday.

u/RickSE — 20 hours ago
▲ 120 r/solar+1 crossposts

Parents Own a Massive Property — Here’s Their Month of June Production v. Consumption w/ Solar

There’s no way this is normal. I feel like something HAS to be wrong for them to consume so much energy. They only have one EV and don’t use heat pumps.

▲ 1 r/solar

How do i add a new breaker?

As the title says i want to add a 20 amp breaker to power a split ac. I would not be doing the install myself as I am not an electrician but would like to get an idea if this can be done?

I currently have a franklin solar system with an Agate and aPower 2 battery. I wanted to add an ac unit which required a dedicated 20 amp breaker.

My current setup is as follows that was wired by the solar contractor.

During day, solar produces and powers the house, surplus goes to the batteries and then gets exported to the grid after the batteries are charged.

During night, batteries power the house, imports from the grid if the batteries are depleted.

During an outage, batteries only power selected equipments.

So if i wanted the ac unit to function the same as above meaning gets powered by solar at day, batteries at night and stop power during an outage where does one put the breaker?

My handy man says he can only put the breaker on the main panel like normal how it is does. He does not know how to wire the new breaker to the agate to function like above. I am not sure but is any further wiring required between the new breaker and agate so that it pulls from the batteries and solar when available?

Thanks

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u/bibek28jan — 13 hours ago
▲ 85 r/solar

This is awesome, I should have done it sooner.

Minus the hot tub, A/C in the late afternoon summers and a hand full of ASIC’s running. It’s looking good!

u/Major_Pie_4027 — 1 day ago
▲ 1 r/solar

Monitoring tool for older SunPower system

As the title says, trying to find a monitoring tool for my old SunPower system installed in 2015.

My system uses some sort of a power line connection that is hardwired into my router.

I tried to use SunFlower, but the app couldn't find anything, I haven't tried the SunStrong (or whatever) because I don't like the idea of paying $100 a year to see production.

Any recommendations for setting up SunFlower on an old system or a different system I could use in it's place that doesn't cost too much.

Thank you.

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u/ecco5 — 18 hours ago
▲ 0 r/solar

Anyone here run Concentrated Solar (Mirror Array) with cogeneration ?

Now that the solar panel tax credit is gone, and with solar panel tarrifs, I think the cost structure favors concentrated solar. This would be concentrated solar (mirrors) with cogeneration / (combined heat and cooling).

You can get 10ft radio dish antennas (C Band) for like $500, and if covered with a reflective thin film, we can get (60sqft x 1kw/9 sqft) 7kw of solar power at 100% efficiency reflected onto its focus point (solar photovoltaic is 20%). Easily combine 10 of them in a circular pattern and that is 70kw focusing on a single point. A 70kw array for like 5000$. The focus point would contain a heat exchanger and combined with an absorption chiller which would then provide cold air / hvac via using thermal energy to pressurize the refrigerant instead of a mechanical compressor. the absorption chiller could be easily built from a heat exchanger material and a salt solution as the working fluid, lithium bromide aqueous. Additionally the co-generator can also provide steam for heating water and central heat / radiator heat. Another huge advantage is you dont need batteries to store power, you can store generated power for free via tanks of hot oil or salt.

It seems steam / rankine cycle turbines are too expensive so generating power would be too costly and AC is probably the biggest power bill so it would remedy that easily. Cogeneration with solar mirrors is the way to go it seems! I may consider doing this due to the removal of tax credit and high solar panel tariffs.

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u/delsystem32exe — 1 day ago
▲ 2 r/solar

Western MA new homeowner, got a quote from ION and need some advice

Details are 17 cents per kw/hr and 0% escalation for 25 years. Monthly payment of $147.32.

Total cost for a system producing 10,399 kw is $44,196

Has anyone had experiences with ION? From what I'm reading, there are mixed reviews. One of the benefits of them is they are a large company so they are less likely to go out of business and leave me high and dry as far as customer service, etc. However, I've heard a lot of people had bad experiences with them and the PPA model has drawbacks.

Any advice is appreciated, I have 5 more days left to cancel with them as I just got the quote yesterday, I made sure they included a free, zero-cost zero-hassle cancellation clause into the agreement so I could bail on it if I didn't like the deal.

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u/Usethisacc2bate — 1 day ago
▲ 47 r/solar

Solar + battery needed 150kWh a day

Hello, my house uses around 145-155 kWh of power our bill is in the 800-900 every month, we’re in central Florida. Was looking around trying to see what our best cheapest option is to cut the bill out fully or even in half. Was looking at a anker solix system but a fully system is around 40k not I counting solar.

Any suggestions are very much welcomed.

Edit: our main AC unit uses around 50-60kWh, no EV, Pool pumps around 8kWh a day. We have around 6-8 fridges and mini fridges and freezers those use around 8-10kWh a day. The second ac unit about 18kWh a day

Edit edit: we have a emporia 16 ct monitor but we have maybe around 30 circuits in main panel so I’m not fully sure where we are using all the power only about 70% of it is known

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u/DareNice2101 — 2 days ago
▲ 5 r/solar

Too damaged to use or can I install?

Basically title. It is from Anker.

u/kai1337_ — 1 day ago
▲ 1.1k r/solar+2 crossposts

Portable Solar Panels can Make a Big Difference

I ve had solar PVs and a residential wind turbine since 2011. The systems have been effective for providing ALL of our household Electric needs, but when I later got Electrified Vehicles (cars, riding mowers, e-bikes, etc), my surplus went away.

I got some quotes on expanding my systems, but I would never come close to Capital recovery. Instead, I bought 900 Watts of portable solar panels and a Power Control Unit that can charge EVs with 110-Volt or 220-Volr.

Even though 900 Watts is a relatively small amount of power, I am able to get most of the power for the vehicles. There is one real advantage to a portable unit. It can be directed at the sun throughout the day. For example in the morning and evening, if I don’t change the orientation the panels will only put out about 20% of available power.

My overall point is that, if you don’t want to spend a lot, this is a great alternative. It helps to be retired, where I can go outside to reorient 3-4 times per day! I also don’t drive daily. Last point - Ir’s a nice retirement toy!

u/NetZeroDude — 3 days ago
▲ 2 r/solar

Sungrow iCloud - what does 'revenue' mean?

I've put in the electricity tariffs into the system, but this seems to show me earning revenue when it's still dark. (I have a battery, but it's not sending power to the grid).

I think today I've earnt $0.10 from my feed-in-tariff; and spent $0 in electricity from the grid. That should mean I've earnt revenue of $0.10.

Is this really showing me "this is the money you would be spending if you weren't using solar and a battery"?

u/jamescridland — 1 day ago
▲ 2 r/solar

Trina vs SEG panels?

I'm working with two quotes that are near identical in size.

Quote A: 15.4 kwh system with SEG 440 panels (36k)

Quote B: 15.5 kwh system with Trina 445 panels (35k)

Quote A company says Trina warranty claim service is hard to work with and often doesn't respond. Any validity to this? Feels like a sales tactic but I have no experience. The panels seem near identical.

Any thoughts on which panel is superior -- because quote B is slightly cheaper and larger, although it's incredibly close.

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u/cvg1 — 2 days ago
▲ 2 r/solar

Can a reliance PB30 + Interlock kit work with anything other than a backup battery or a generator?

We have reliance PB30 + Interlock kit (I think that’s what it’s called. To be able to hook up a generator or a backup battery unit sort of a thing to power the house.

Is this something that could be used to connect solar or wind to power the house?? Or so we need something different to add to make solar panels or wind turbine kind of a thing to the house?? I am so new to this, please be kind. I’m trying to learn. Thanks!!

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u/External-Nerve-1444 — 1 day ago
▲ 5 r/solar

How do electric companies buy back power made from solar?

We had a sales rep come by. One of my family members agreed to a meeting with him. In advance I looked a bunch of stuff up online so we know what to ask the guy. Anyway longer story short onto my question:

The sales rep says the electric company only buys full panels of electric back. Where is I thought (and if I Google) it seems that they buy the excess electric and it get micro-monitored.

We're most likely not going to do that because it is a lease for 25 years (we could also buy it out right) and they are only saving us about $90 but we still have to pay that grid connection fee so in reality it's down closer to $60 or less per month savings.b the only advantages when power goes out we'd still have power and we will be able to run all through the night if we needed. He said if we want our price even cheaper he could remove a solar panel but then we would have no over provisioning.

Which one of the above is correct? Do they buy back our electric on a micromanaged level or do they only buy full solar panels worth of electric at a time? He's saying they just give us a payment once a year if we had extra panels to sell them.

The system he gave us has two batteries and 18 panels it over provisions or electric by about 10 or 11%. He's saying the electric company wouldn't pay you anything because they only buy a full panels worth of electric and in order for that we'd have to add on more panels.

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u/VisibleExercise5966 — 2 days ago