Security and open source at the hardware/software interface. Embedded sec @ IOActive. Lead dev of ngscopeclient/libscopehal. GHz probe designer. Open source networking hardware. "So others may live"
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npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Profile Code
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2026-07-19T20:41:41Z Event JSON
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Last Notes npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…u57d but like this Ti375 has 1344 DSP tiles that can each do one 19x18 integer + 48 bit accumulate, or a BFLOAT16 FMA, per clock at 1 GHz in the -4 speedgrade. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg And which is more energy efficient if I'm not in a hurry. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…5yze Sadly I don't get to dictate what products the school first aid kit stocks lol. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg Do all bandaids use the same type of adhesive or are there multiple kinds in use? Kid seems to be allergic to at least some of them. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg Did you know that every catgirl has a maximum operating frequency determined by its size and dielectric constant? npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…3y57 the speeds and feeds are all wrong on every chocolate chip I've ever seen. Just look at how they're shaped, are they work hardening the stock or something?? npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…huwm I've put a ceiling of about 1.5 on my PUE measuring lab UPS vs whole building power draw. Don't yet have finer grained measurements to pin it down more precisely npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg I guess add this to the list of other things I wish the tech industry would build that they aren't... npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…69vm @nprofile…2fsd rofl you have to do that on the qa stickers npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…2fsd i see your QA inspector is busy hanging out on the shelf while you do all the work npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…tm9j yeah something like that. I'm sure there is a way to re-key i just have to figure it out npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg Starting to set up a second of these FS 40/100G switches. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…t2th @nprofile…0f4l I am seriously looking at energy harvesting heat pumps to heat the house with waste heat from the lab in the winter, right now I run the air conditioner in January and feel like I'm wasting a ton of energy doing so. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…6cfx lol we've already got rid of the toy and passed it on to somebody else but that doesn't stop it from popping into my head sometimes npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…r9vg i mean they don't have differential outputs IRL but maybe there's a diff amp in the base or something... :p npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg Ever wondered what makes SFPs go? Wonder no longer. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…t7ks (side note, i love how mastodon is the kind of place where i can casually name drop a SFF standard in the middle of a conversation and it's just totally normal and people know what I'm talking about) npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…t7ks the thing could hold up a small attenuator board or something just from friction without soldering it's super snug. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…t7ks will probably swap for rosenberger 32k243-40ml5 or similar npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…t7ks I have a very similar one I built myself except it doesn't even have any power regulation (takes 3v3 from a bench supply). Just a couple of capacitors and filtering components. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…fqfm @nprofile…cy5p I'm hoping one day a bunch of angry nerds will design either an entire suite of new electronics/controls for a popular late model vehicle, or better yet an entirely new vehicle, that is simple, low tech, repairable, and open source to the extent practical. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…cy5p I am absolutely prepared to excise radio power amplifiers with a hot air rework station if it comes down to that level though. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…cy5p If I am ever forced to buy a 2015+ vehicle (or whenever they started putting telematics on cars) due to lack of alternatives, you can bet I am going to go bumper to bumper with a spectrum analyzer and nearfield probe set and neutralize every radio transmitter on the car by any means necessary. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…cy5p I work in computer security and do a lot of work on automotive stuff. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…u6vt of course. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…u6vt yeah a good trainer will recognize when someone is at the breaking point and pull them before they get hurt, or set a max number of reps. you're not trying to kill the team you want to build them up npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg Cursed exam idea: everyone gets the same problem, first to submit a correct answer gets a passing grade. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg Does it count as dark fiber if it's plugged into a switch/nic at one end and not linked up? Or does it have to be like fully floating npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg I took a recent inventory of my network and am seeing an increasingly bimodal distribution of link bandwidths. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…xr5j Unplugged and re-seated both the QSFPs in the cages, and the MTPs in the sockets. And cleaned the MTPs with a fiber cleaner. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg Set up this OEM approved cooling solution. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg 🎶🎶 maybe you npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…a6yp I have to be able to take it off every couple years when work makes me test something that talks to it, I just want to be very very sure it's not phoning home in the meantime npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg Does anyone make a LOTO for DC barrel jacks? Found my echo dot while cleaning up the lab earlier and I feel like I really should have a lockout on the power source npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…3tsk Maybe for DDR5 modules. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg Progress! CI jobs for two consecutive commits dispatched by GitHub commit hook. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg This will get better when the rack kit for the SPD3303X-E comes in but for now it's just sitting on a shelf. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…thd8 that sounds like something a scopehal filter could do. You'd need to write a boundary scan decoder to go from the jtag scans to digital waveforms for each IO, but then you could run the existing spi decodes on top of that. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg It's been a while since I've done web stuff. Did I screw up anything too horribly here? npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…ffys seriously, i love raw vulkan with minimal wrappers for compute acceleration... it's almost as low level as CUDA but it's not absurdly heavyweight tooling wise and is portable to anything from a Haswell-era integrated GPU to a modern nvidia monster to a macbook air npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…ffys apt install libvulkan-dev npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…f8cg i want nothing to do with a floating hotel full of casinos and sick/intoxicated boomers. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg Did you know that "TOYOTA" is comprised entirely of letters that are symmetric about the vertical axis? npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…t9xu if i did somehow have ~4x the generation capacity i in fact do, I'd have a different problem though... Anything that can store tens of MWh of extra energy can let it out again if something goes wrong. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…t9xu I burn all of my surplus overnight, there's nothing to save for later anyway npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg 398 kWh solar generation for May so far and it's not even noon on the 8th. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg Hmmm... How likely are platform specific memory safety issues in ngscopeclient/libscopehal? I'm thinking "not very" since almost all of the OS-specific stuff code is in third party portability libraries. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg I was hoping I'd be sub $700 for April but didn't quite generate enough juice to do it. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg Got the official power numbers from my utility for the April billing cycle. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg I wonder if a voltage regulator at the local utility was having some problems? A couple weeks ago I saw much larger than normal variation in mains voltage than I've ever seen before, both high and low, then it cleared up. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg Enterprise Role Play (ERP), sometimes also Enterprise Resource Play: A unique form of fetish role play. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg For comparison... my 16 GHz LeCroy oscilloscope puts out 40 Gsps * 4 channels * 8 bits of raw ADC samples, not counting the flatness corrections done in gateware/firmware. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg You know what would be really nice (but nobody is ever going to build)? npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg Whenever me and my wife are driving somewhere together and are backing out of a driveway, making a turn at a sketchy intersection, etc whoever is in the passenger seat always acts as a second set of eyes calling out traffic or "clear right" etc as appropriate. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg Another beautiful cloudless day npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg Stress testing the R9700 a bit with a gigapoint of waveform data (512M point differential capture sent to me a while back by some folks at @nprofile…vxj5 ). npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg Did i put this in backwards or something? The fiber isn't clicking npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…a65n it claimed submersible and i certainly got it pretty wet over the years. Pretty sure it's been submerged at least once. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…a65n air quality + IP rated might be harder since you'll need the sensor exposed npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…a65n doesn't exist afaik npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg I have a pair of end-of-life phones (CAT S61 and S62) with FLIR Lepton thermal cores in them. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg I just tried to ctrl-O to save a file in a GUI text editor. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…3tsk lol moss is native to this area the grass is probably what doesn't belong npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…3tsk the yard is like half moss already I just need to get rid of the grass and buttercups lol npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…3tsk i would like to replace our grass with moss... Never needs mowing, nice and soft npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg Weird things that happen when you have a 100GbE pipe to your desk. 8 Gbps of sustained network traffic and the network monitor is like "yeah you're not using much bandwidth" npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…k7h5 you could probably write one without too much trouble but all of the ones I've seen, despite being freely downloadable, have restrictive termss attached npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…r9vg I run the vast majority of my stuff that opens a socket to the internet in VMs that I can reboot much more casually. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg Do normal arch users just reboot constantly? I'm trying to imagine the UX of installing a random package and having vulkan suddenly stop working until you reboot because your kernel driver and userspace are out of sync or something like that npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg Using Arch as a CI runner has been quite the interesting journey due to their packaging workflow and the fact that installing any new package effectively brings in a full system upgrade with it. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…rues Intel XL710 -> Mellanox ConnectX 6. Haven't checked specs but it's likely faster, I think the old NIC was a gen3? npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg Well this was not expected. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…scs2 silver chloride plus sodium chloride and potassium bitartrate. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…scs2 I've pretty much standardized on SMA for everything. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…scs2 i would prefer sma it's likely getting a n to sma adapter semi permanently installed npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…scs2 I'm gonna be buying a r&s nrp18t soon but not for work, for my own lab mostly as a cal standard for other equipment npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg Chat is it normal to bring personal standards into work to calibrate their equipment against? npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg Anybody familiar enough with Supermicro main board architecture to know what they're using the little Lattice CPLD for? Just IO expansion for the BMC or what? npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg Testing the silver chloride based plating powder on some PCB samples that I milled. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…4424 yes RHEL is what the big eda folks run for linux, fedora is close enough we expect it to work on RHEL despite not officially testing npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…4424 We do have some, yes. Not sure how many. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg So now we have builders for npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg I ran a few quick calculations on power consumption: measuring at the UPS, the baseline consumption of the lab a minute or so before kicking off a CI job was 3828W. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg OK, the Arch runner is now set up and working after my rather annoying tangle with llvmpipe. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…a65n well i dont have easy access to anything else mesa supported on this vm (or any arch instance i have access to) and nvidia doesnt use mesa. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…a65n I was able to initialize vulkan and run a couple of shaders without any problems; 13 of my 17 unit tests crashed with weird pointer or memory corruption looking faults in code that seemed to be llvmpipe's JIT binaries from my SPIR-V. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…a65n The crash I was getting was segfaults deep inside LLVM-generated code with no symbols, and a thread named "llvmpipe". npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…a65n well i dont even have a display server *installed*, this is a headless VM, so it shouldn't be confused by that npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…a65n there is no x or wayland server running so i dont think there is any mesa? or is mesa involved in the vulkan stack still even when nothing is being drawn? npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…a65n I do not have any AMD cards in the VM server at the moment only nvidia. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg Is anybody using llvmpipe on Arch Linux with Vulkan? Have you tested recently? npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg 65.1 kWh generation today, another record (beating 60.3 from last Saturday) and up to 940 for the month. From about 10:30 to 14:45 I was fully self-powered. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg Alder Lake isn't far off but i need to find the chip first and they're new enough to still be a bit pricey npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg Tukwila is iirc an entire server so even though it's close by i really don't want to buy and lug one around just for the photo op npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg i want to visit the Nehalem river soon but need to acquire the right generation of Xeon first npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg Velkommen til Poulsbo! npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg @nprofile…7l00 HIPAA doesn't prohibit collection of information, only how it can be disclosed once it's collected. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg Using the solar company's 9 MWh/yr rough estimate for generation since I don't have actual numbers for the year yet, and my current power price rather than what it was when I quoted, and the actual rate of price increase, extrapolating... npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg Looking at the trend, I don't see it getting better soon if ever. npub1cddglts94qutscms0qpmk87lel9m8xku7q0wr20u2th5fxvvunqqxz9vpd Andrew Zonenberg The solar company estimated my array would take 17.8 years to pay off.
