Community Stories

So NASA launched Artemis II, humans are heading back to the Moon, and my brain immediately went to: "but could you build a solar farm up there?" I work in solar engineering, and the software we use daily for utility-scale projects can model pretty much any terrain and conditions. So I figured — why not throw the Moon at it and see what breaks? **The setup** * Same workflows we use for real Earth-based projects * Assume all tech is magically adapted for lunar conditions (yes, I know, big asterisk) * Two candidate sites based on publicly available data **Site A: Lunar Equator (Mare Tranquillitatis)** 14.5 days of brutal direct sunlight, then 14.5 days of absolute darkness. Flat terrain, simple layout. **Site B: Lunar South Pole (Shackleton Crater Rim)** Sun barely peeks above the horizon, but there are so-called "peaks of eternal light" — spots that get \~90% illumination year-round. Terrain is a nightmare though. We modeled the landscape, generated weather data, designed racking for each site. **The tradeoff** Equator = high peak output + long blackout periods Pole = lower intensity + near-continuous generation One option produces 2.5x more energy than the other. Which one do you think wins?

I am quite interested in seeing who will claim the crown to second largest solar installer this year, with united states and india going head to head. To my knowledge, China is still pretty far ahead with 45 GW of solar installed in the same first quarter.

This is a quote for the exact same system, actually the SunRun system has 1 less panel. The sales guy literally showed me the number and said you should never pay this for solar, then went right into a pitch about the scam that is PPA. I told him I wasn’t doing that and the other quotes I got were half the price so thanks but goodbye, then the pitch turned into oh those companies are sketchy but I may be able to so a price match for you. I’m in finance so I knew PPA wasn’t happening the first time I glanced at it, but man with this guys pitch I bet you they sell a ton of those even to people who can actually afford not to. So sad, such a terrible first experience with a Solar company. Luckily everyone else has been fantastic. Be careful out there!

My mom signed a 20 year ppa solar lease with Sunrun in 2018. Escalating price every year. They keep tax benefits. No battery. Is what it is. My mother passed away last year and im the executor for her estate. I was willing to keep sunrun as I can see the benifits of having solar, I just wanted to sign under different terms. Through my research it shows that for 27 months the solar was not producing. 0 production. Which makes sense because she had a 5k electric bill when she passed away that got transferred to me. Yay. So I inquired about them not producing for 27 months they issued me a refund of 1300, but applied it as credit for the account. Me and the guy keep emailing back and forth. They offered me a buyout for 12000. But that doesnt make sense to me for a system that is already outdated and clearly doesnt perform correctly and with out a battery. I asked them what are my options if I do or dont sign a contract with them. Basically he said thats it. You either sign or you don't. And then i noticed They shut off my solar to my house saying they "dont bill dead people" he also said he couldnt send me a check for the remainder of the refund they credited me unless I signed with them. So basically holding hostage the refund money bribing me to sign. Not only that but how are we In a 20 year contract and they turn off the solar and still keep charging me monthly... I feel like they should be paying me for rent at this point.. their equipment is still on my roof using my internet while they keep producing energy back to the grid and I get nothing. Like am I wrong for thinking this is absolutely insane!!!

38 year old software engineer here living in Austin. The 2021 freeze was a wake up call for me. Lost power for 4 days, pipes burst, and I swore Id never be that dependent on the grid again. Spent the last year researching and finally pulled the trigger on a full solar + storage system. 6.5kW of panels on the roof, a Sol-Ark 15K hybrid inverter, and a 48V Vatrer Power 100Ah server rack battery. Total storage is about 5.1kWh usable which covers my critical loads during outages. The battery choice was interesting. Looked at the big names like Tesla Powerwall and Enphase but the cost per kWh was brutal for a DIY setup. The Vatrer unit is rack mountable which made installation clean in my garage, plus it has WiFi and Bluetooth monitoring which feeds into my home automation setup. I can check cell voltages, temperature, and state of charge from my phone or my Home Assistant dashboard. As an engineer, having that data available is pretty satisfying. System has been running for about 3 months now. During the last grid outage test I ran the fridge, network gear, some lights, and my home office for about 8 hours and only used 35% of the battery. The 48V voltage keeps currents reasonable and wiring losses low. Biggest lesson from the project was definitely cable sizing. 48V helps but you still need to do the math on voltage drop, especially for the battery to inverter run. I used 2/0 AWG for my 8 foot run and stayed well under 1% drop.

Hey all! So my landlord/ homeowner dipped/ disappeared. Maybe he was deported I don’t know. He stopped paying the solar panels and I got a note in the door that the solar lease agreement is in default and in the event of default he agreed to allow the loan servicer or agent to access the solar energy system for the purpose of deactivating the system. It’s a large home with two central AC’s. The electric bill has been very reasonable because of the panels and I’m afraid it’s going to be very expensive without them. I read somewhere not to offer to pay the back pay or payment or it could become my loan. I would be willing to pay what the homeowner owes to keep the panels on, but I absolutely don’t want to get stuck with the loan of the panels. I don’t know what to do.

good day! I posted a few weeks ago regarding a farm that's been in our family for generations but we no longer farm it, we just rent it out to a local farmer. the farmer is retiring and this year I decided to harvest the timber. long story short, I want to see if it would be more beneficial to remain cleared for solar farm use. I contacted my local power company that my coop buys from(Duke Energy). With that being said, I had to fill out a form and wait for a reply and conference within 10-20 days or so. I judt want to ensure that I can maximize my chances at this as it would really set my children and further on up for success in the future. There is currently 75 combined acres between the two parcels of cleared land. after timber is harvested it will be 150ish acres of land(obviously there will be stumps in the recently harvested land). my question is what should I be looking for in regards to land rent, lease, and escalator? this is coming from anyone that may have done this already or may be an actual solar farm contractor. there is already a pond on each parcel that would act as retention, so neither would need one in that case. power is already nearby with road front accessibility. there are also high voltage lines going directly through my property on one of the parcels.

We have a house that we started construction on in January 2023 and moved into in April 2024 on an island within 20 miles of the 49th parallel. The house was designed with solar in mind and had solar panels installed while the house was under construction by Western Solar in Bellingham. The first phase of the solar system was turned on in April of 2024 and then we had additional panels installed in February 2025. The solar system currently consists of 37 Panasonic panels with IQ8+ and IQ8M microinverters with an Enphase 4C combiner box. The AC side of the system is rated at 11Kw. System was purchased and does NOT involve a lease. By law in Washington State net metering is essentially on an annual basis with the year running from April 1 through March 31. In months where the solar system produces more power than what is consumed the kilo watt hours are added to what is known as "the bank". We just completed a year and any Kwh left in the bank the utility company gets for free. The bill doesn't show how much power was given back but I believe it was about 150 Kwh base on reading the meter early on April 1. The year in review: * This winter was relatively mild for us without any really cold periods. It was the first year that my Dad can think of that there was no measurable snow here. * 14508 Kwh was produced * 14358 Kwh was consumed * 39.4 Kwh average daily consumption * $43764.00 system cost * $30634.80 cost after the 30% tax credit (everything was running well before the expiration of the credits) * 19.1 cents utility cost per kilo watt hour based on our March bill. * $2742.56 value of the power offset by the solar system for the year * 11.17 year pay back with the tax credit * 15.96 year pay back if we had not gotten the tax credit About the house * \~3200 sq feet * nearly all electric, wood stove is the only exception * heat pump with radiant floor heating * complicated water filtration with a reverse osmosis filter due to arsenic in the water. I don't know how much power this consumes but I suspect quite a lot. * no air conditioning, we don't need it being on an island surrounded by salt water * no fossil fuel inputs * we do supplement the heating with a wood stove and probably have consumed 1.5 coords of douglas fir and bitter cherry Some other stats and comments * July 2025, produced 76.15 Kwh per day. consumed 29.29 Kwh per day. July added a lot to the Kwh in the bank and is the best month for solar production. * December 2025 produced 6.4 Kwh per day, consumed 49.49 Kwh per day. Worst month for solar production with lots of clouds and rain. We do have some tree shading when the sun is low in the sky * As can be seen from these two months we are really using the grid as a giant seasonal battery. * We have a standing seam metal roof and the solar racking clamps to the seams so no bolts of any kind through the roof. The cabling goes in through the ridge line roof vent so we have no roof penetrations at all. Do we like it YES. Would we do it again YES. Western Solar was very straightforward to deal with and competent. The only thing that was difficult was projecting what the power needs would be of an unbuilt house. We installed enough panels that we thought it might work and then expanded after we ran out of Kwh in the bank the first year of operation.

Hi there, attached is a quote I just received on 16.72kw system featuring 38 Hyundai 440w panels, Sigenergy 11.5kw inverter, LoadHub, 9KW battery, and EV DC charger/V2X system. All for \~$43k USD. I’m going Sigenergy for the V2X functionality with my EV allowing me to not only charge with solar but to leverage my trucks 131kWh of useable energy, and have the opportunity to sell back to the grid. Using Sigenergy’s load hub also allows for uninterrupted power backup. From a production standpoint, the back of my house wheee the majority of panels would be is facing 170°S and I have a fairly steep roof pitch of 37°. Pair that with zero obstructions this is about as good as it gets for roof mounted solar for North East Ohio. A few questions. 1. Is this a decent quote? 2. I have fluctuating energy needs between 2 EV’s and a spa. Estimated annual consumption is \~19,000kWh to 24,000kWh. Is this system sized appropriately given net metering as well as off peak rates are available in my area. I’m starting to wonder if I use the battery right if I could go to 24 panels and still 0 out my utility bill. I’m fairly new to this so please let me know what you think.

The OBBB ended the 30% incentives on many renewable related projects. But that was when Trump reentered office and had strong political support. A year later (April 2026) things are going very bad. * Energy demand in USA is accelerating * Energy production is barely growing (new coal and gas generation takes nearly a decade to build) * Iran war is increasing price of all fossil fuels, especially diesel * Republican political poll numbers are cratering, Democrats are winning. * Trump's sons are known to be investing in PV to power their bitcoin mines. Meanwhile China's renewable growth is nearly doubling each year, drastically reducing need for fossil fuel when other countries are in crisis mode. This energy abundance is allowing them to become world leaders in technology. In early 2027 * Democrats will have strong majority in House, and likely even gain the Senate. * Energy prices will be higher * Republican voters will demand cheaper energy, Trump listens to base will bring back PV incentives because it is they fastest way to build power generation. * The energy shortage due to war will persist into 2027. Solar is now everywhere, and the vast majority of installs are good. Word of mouth will calm peoples fear of PV as their fear of high energy price continues. I also ask my friends in PV industry, they say sales have not declined too much, no worry about going bankrupt. What is your prediction?

Hi! Advice and honesty wanted! So in our county we have a solar incentive program, I guess, I actually haven’t talked to them myself but my roommate has. The people from the program have come around our house a few times selling the idea of putting up solar panels BUT they have to cut down our holly tree in order to install it on the south facing part of our roof. So my roommate has turned it down until this year. I do really believe solar is great and encourage it. So my roommate talked to them about installing on the roof of our studio (a separate structure in the back) instead so no trees will need to be cut. I thought wow great! But now he’s saying that that will not be enough for our needs and we’ll end up having to make up the costs each month. The figures they discussed were like 11 thousand a month is what we usually use on electricity and if we did solar panels on the studio it would only be 9 thousand per month. Forgive me, I don’t know what the measurements are but it’s about how much electricity we use. Another option is to trim the holly tree and my roommate is unsure of how feasible that will be on a regular basis if the installment and maintenance doesn’t include tree trimming. The side that the tree is on is the south facing side and the red shed is our studio and the side that is pictured is also the south facing side. Do you think we would REALLY need to cut the tree down? How often does that happen? Is it financially and logistically reasonable to trim in order to maintain the efficiency of the solar panels? Do you have to regularly trim trees to maintain yours? Share your thoughts!

Prepaid leases emerge as residential solar customer pathway to accessing federal tax credits

I keep seeing ads for foldable solar panels left and right but I dunno which one gives the best bag for your buck. I've been looking at the ones that arent super huge and you can set up in your front yard when the sun comes out.

Claude has helped me from the start of this project along with this post\* Hey r/solar — long post incoming, but I wanted to document our full decision process in case it helps anyone else in Southern California going through the same thing. Also have some specific questions at the end. Our situation Large home in Murrieta, CA (SCE territory, TOU-D-PRIME). Verified 13 months of actual SCE billing: 13,412 kWh/year, $4,168/year in bills. We have a Tesla Wall Connector already installed (2× 30A breakers = 60A committed), which created a panel constraint we had to solve for. How we sized the system We started with our actual SCE bills broken out by On-Peak, Mid-Peak, and Off-Peak usage. The interesting finding was that winter actually costs more than summer on TOU-D-PRIME — the 56¢/kWh Mid-Peak rate runs every single day October through May (not just weekdays), hitting 240 days vs. 88 summer peak days. That drove us toward a battery-first approach rather than just maximizing panel count. We landed on 8.28 kW DC (18 × REC 460W Alpha Pure RX Black panels) paired with a Tesla Powerwall 3 + Expansion Pack (27 kWh total). The system produces about 15,052 kWh/year per the Aurora Solar model, which is 112% of our usage — leaving a small surplus at the low NEM 3.0 export rate rather than oversizing. Projected annual savings: \~$5,100/year. The 200A panel constraint Because of the Tesla Wall Connector taking up 60A, we don’t have enough NEC 120% headroom for standard load-side solar interconnection. The solution is supply-side (line-side) Gateway interconnection using Tesla’s Power Control System under NEC 705.13 — no panel upgrade required. This is a real constraint a lot of EV households will hit and not know about until mid-quote. Worth asking every installer upfront. Our load profile for the battery We’re running: 1× 2.5-ton central AC, 2× window ACs (8,000 BTU each), 2× refrigerator/freezers, 2× computers, 2× TVs, misc lighting. Peak simultaneous draw is about 4,418W — only 38% of the Powerwall 3’s 11.5 kW continuous output. Plenty of headroom, and the 2.5-ton central AC startup surge (\~70A LRA) is well within the PW3’s 185A LRA rating. The 27 kWh covers about 16 hours overnight at our typical nighttime load, and with solar recharging during the day a multi-day outage is basically indefinite. The quotes we received We got six quotes total via EnergySage. After analysis: • NRG Clean Power — Tesla Premier, REC Installer of Year 2024 & 2025, 39 years in business. Prepaid PPA (HDM) at $31,756 true net after $1,031 Gifted.co gift card and $1,000 Tesla rebate. 40-year installation warranty. • Solar Optimum — EnergySage Installer of Year 3 consecutive years. Prepaid PE lease at \~$32,119. Strong operational reviews, in-house crews, 95% first-inspection pass rate. • G C Electric Solar — Best cash price at $1.64/W. Awaiting right-sized re-quote. Why we’re leaning prepaid PPA (HDM route) The residential ITC (Section 25D) expired December 31, 2025. In 2026, prepaid PPAs and leases are the only way homeowners can capture federal solar tax benefits — the financing company claims the commercial 48E ITC and passes roughly 27–30% to you as an upfront discount. HDM Capital specifically offers: • Automatic $0 ownership transfer at Year 6 (contractually stated, not FMV) • 90% production guarantee for the first 6 years — floor of 13,547 kWh/year • No homeowner’s insurance requirement • $1,031 cash-equivalent gift card (Gifted.co — usable at Target, Amazon, Visa prepaid, etc.) The PE (Participate Energy) prepaid lease is similar but: no production guarantee at all, FMV year-6 buyout (designed to be \~$0 but not contractually fixed), and full 25-year maintenance coverage. We’re leaning HDM + financing through Wheelhouse Credit Union (5yr at 4.74%, no dealer fees) with $25K down → \~$165/month. Cash-flow positive from month 1 since we’d be saving \~$425/month on SCE bills. My questions for the community: 1. NRG Clean Power — Anyone have experience with them specifically, especially for complex installs (tile roof + Powerwall + supply-side Gateway)? Their reviews show a pattern of strong pre-contract communication but slower execution post-signing. We’ve seen one Sept 2025 contract for an identical system that still wasn’t installed by early 2026. Has anyone had a similar experience or a better one? 2. Wheelhouse Credit Union — Any solar borrowers here? Their no-fee products look genuinely excellent (4.74% for 5yr, 7.99% for 20yr) but I want to hear from anyone who’s actually used them for solar financing. 3. HDM prepaid PPA — Has anyone gone through the Year 6 automatic $0 ownership transfer with HDM? That’s the make-or-break contractual promise. Also curious if anyone has filed a compensation claim under an HDM production guarantee. 4. Supply-side Gateway installs — Has anyone had NRG or another Tesla Premier installer do a supply-side Gateway interconnection on a 200A panel with a Wall Connector? Trying to confirm this goes smoothly in practice and doesn’t turn into a “surprise” panel upgrade. 5. Prepaid PPA in general — For anyone who did a prepaid lease or PPA before the ITC expired: anything you wish you’d known? Any surprises in the HDM or PE contracts we should scrutinize? Thanks in advance — happy to share more of our analysis if useful to anyone else in SCE territory navigating NEM 3.0. TL;DR: 13,412 kWh/year SCE home in Murrieta, sized to 8.28 kW + 27 kWh Powerwall 3. Leaning NRG Clean Power via HDM prepaid PPA at $31,756 true net, financed through Wheelhouse CU. Asking about real-world NRG install experiences, Wheelhouse solar loans, and HDM Year-6 ownership transfers. Thanks my dudes.

Hello Solar Community This will be pretty long but im desperate and not sure what to do Solar purchase 30 JA panels (roof mounted) 1- Tesla Powerwall 3 STORY I bought my home in July 2025 and my first project was to add Solar as im in Northern California (Sacramento) and I knew the incentive would be going away in December federally. I did research as I was buying the house and found what I thought would be a great deal with "Project Solar" I got the quote, paid cash on August 2nd. 2 weeks later, and like 20 calls to them to get started, I was put on the schedule to install October 3rd. The installer was not Project Solar, it was Freedom Forever. They installed my 30 panels and Tesla Powerwall 3 in one day and told me it will probably be 10 to 15 days for Inspection. After almost no communication throughout October that turned to November that finally in December I looked up EVERY person I could and emailed them finally got a customer experience blah blah blah to put it together and we had some traction. Inspection failed.....fixed. inspection passed........then another month to get smud (power company) to tell me it wasn't submitted yet but got that approved finally and everything finally was connected at the meter last SaturdayApril 18th. I was ready to get this PTO going and I actually got a text saying I was ready to turn it on on Monday April 20th. Fastest communicate in 9 months of dealing with it. I followed the directions 1. Breaker turned on. 2. Wait for the powerwall 3 to turn on. (Can take 5 minutes) it turns on and the light flashes white. I wait. 10 minutes later it's off 3. Start over. Same thing. Do it multiple times never once does it go solid white 4. The power switch turns off will turn the light flashing red 5. Email and Call installer, new message, they are no longer operating during the bankruptcy. Call the account manager, they text me back they no longer work there. Call Project Solar. They can't do anything but maybe if they switch installers, they will call me back. I tried to pair it to my phone but it times out. I tried downloading the Tesla 1 app but I don't have the password(the app does see it in wifi discovery). I don't know what to do. Im pretty handy but know nothing about Solar other then forums which haven't been helpful. I work in IT so im not completely helpless. Did I just lose $30k for some paperweight?

Hey Reddit - I just closed on a new construction home 6 months ago, and opted to purchase the included solar panels built by GAF. I’m currently stuck in a PTO nightmare. According to our utility company, GAF’s application contains a significantly higher than usual number of errors. And when these errors do arise, GAF does not appear to notice or act until I give them a call and push for a few weeks. I’ve pretty much become the project manager. Multiple times per week I’m calling the utility for updates, then calling GAF to ask why they haven’t responded. I leave voicemails, text, and involve the home builder and yet nothing is getting resolved in a timely manner. Is this typical and has anyone else found strategies to escalate? Beware GAF guys :)

Solar companies are really pushing SEG solar panels in my area. what are you thoughts on that? should i stick with the tried and true brands?

We have 2 EVs so I've started exploring solar options. We are in SoCal and our house gets plenty of sunshine. I've got 4 quotes and they all suggest different number of panels. The range is from 113% to 166%! I don't understand why they would offer such a huge range. I am also going to get a storage. Some 1 powerwall 3 + 1 expansion. Some other offer 2 powerwalls. The price different between systems is huge. So I am trying to make sense of all of this. Why such a range? Why are they pushing for large system (other than the price of course)? Will I be disapointed if we choose the smaller system? To be honest the small system makes financial sense as the lease + SCE bill will still be lower than my current bill. The largest system's monthly lease + the SCE bill will probably be very close to the current bill. So I am questioning why should I go through all the trouble. We are likely to move within 5-7 years to a larger house.

I’m a bankruptcy attorney, and I have a client with a “lease” with Sunrun. I use quotes because the contract itself is neither lease nor purchase agreement, but some garbled mishmash of words that feels like it was drafted by AI. The contract is internally contradictory. The first paragraph says it’s a purchase agreement between homeowners and Sunrun, for purchase of solar equipment. Then later on the same page, it says Sunrun owns the equipment, will maintain it, etc. The next page says the homeowners are purchasing electricity services from Sunrun. Aka “pay us instead of an electric company” sales pitch. Sunrun has the ability to remotely access and shut off the panels (and attached battery) if they do not pay. Long bankruptcy stuff here, but the long and short of it is, I seriously doubt Sunrun will be coming to remove these panels from the house after bankruptcy. Also there’s no lien or UCC filing. Which would leave my clients with a nice free solar system and battery, but one they cannot use? Would it be possible for a local solar installer to come and make the system usable for them?

I agreed to a service transfer agreement under the original contract. Signed off on the transfer and 10 days after I signed off, the previous owner signed a modified guaranteed production output form that reduced the production by 35%. I never saw this document, wasn’t part of this adjustment. I took over these panels in 2022 and just found this out last week. I received the modification document with the previous owners signature. This isn’t an issue with the previous owners, but with the solar company. Had I known about this adjustment, I wouldn’t have agreed to the contract and wouldn’t have bought this house.