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While it's nice that solar is cheapest new build power source it cannot fully replace dispatchable power like gas/hydro/nuke so those kind of comparisons are incomplete. Solar needs backup power and that cost should also be included but often is not.

You sir must be suffering from TES.

Those numbers are bogus if you examine them closely. They call normal business equipment depreciation and operating expenses as subsidies lol. Also wiki is heavily left slanted when it comes to hot button political issues which FF "subsidies" are part of. Huge grain of salt required.

Professionally made from scrap (except rails and L brackets). Temporary and will be removed in case of hurricane.

Your unpermited grid tie inverter is as likely to kill a lineman as your cellphone not put in airplane mode bringing down an airplane.

Inspired by this thread I decided to test it myself. I happened to have this big toroidal transformer core sitting on my desk that happens to be an excellent source of 400 Amps AC as high as my clamp meter will go. So I crimped two #4 lugs on 4 AWG welding cable, looped it through the core and...

I just love setting up high gain directional antennas to get high speed internet where there is no signal. Here is my last project I did for relatives in a remote eastern European village. Getting 100 Mbit internet where there is no 4G service was great.

Ok i finally decided to do some math and put this old wives' tale to rest: 4 ton compressor has 3.5 Kg of copper. Specific heat capacity of copper = 1.46 J/(g*K) J = 1.46 * (g*K) J = 1.46 * 3500 * K J = 5100 * K convert to watt hours: Wh = 5100/3600 * K Wh = 1.42 * K so it will take 1.42...

Solarholics anonymous

Here is second test with nylon washer to prevent any current from flowing through the bolt. First up is dry contact without grease. Got 16 mV at 335.5 A = 47.7 uOhm resistance. Next test with grease applied got 15 mV at 340 A at same exact setting on the Variac transformer. So I bumped up the...

Comes out to 37 cents/Watt using 370W panels, 25 c/W for 550W panels. Seems competitive using large panels plus cost savings of not needing to rent and operate pile driver machine. Panel attachment method seemed awkward at first but that ratchet wrench makes it work.

$2500 for 768Wh. Wow. Return it get your money back.

TL;DR ?

Generator is a good point. Would not want to live next door to one. But exactly how much power they consider enough for winter can get murky and they can set the bar artificially high.

There are no health risks from EMF from solar inverters. People claiming sickness from EMF are mentally ill. Ignore them and don't give them money.

It works !!!

Not worth buying junk panels at 10 cents/watt when nearly 2x efficient and ~3x power output panels can be had for 25 cents/W. Installation and space requirements become not worth the trouble unless you lay them flat on the ground and don't care what happens to them. I realized it when looking at...

I've seen this effect with 100Ah cell stack. Compression was at least 2x on top with compressible foam sheets in between cells. Without compliant material between cells they must have been getting crushed at top corners. I also doubt that fuse started the fire. It could have blown as one cell...

Now price that lifetime cost per MWh for that Tesla pack and add it to solar LCOE. In US marginal cost for gas and nuke power is around $35/MWh. Solar can't even touch that. Add batt cost to it and it goes off the charts.

Or used EV packs at $25/kWh. Five Tesla Model 3 packs at 80 kWh each remaining cap. = 400 kWh for $10k. Will only get cheaper in the future.

You can place DC wires inside water pipe feeding point of use 48v DC water heater. Wires can be much thinner since they will be immersed in water and resistive loss will directly go towards heating water. PVC wire insulation should handle it fine. Edit: also a good way to give your electrician...

Even expensive Bluetti AC200MAX is 2048Wh capacity 2000W continuous power for $1960. I will let others decide which solar generator is best for you since I never used them. Cheapest 5000 BTU window AC uses between 400 - 450 Watts. I would recommend for you to get the inverter drive variable...

So i was doing annual cleaning on my Midea U 12kbtu window AC and decided to take it apart a bit more to see inverter/controller board and to try running it from DC power. I tried to power it from 120v 100ma benchtop supply and i got it to spin the indoor fan followed by power error displayed on...

Dont pay more than $200 per module. At $650 each they are priced at $138/kWh assuming 90% capacity remaining from new (these are used batteries). For $120/kWh you can buy new LFP cells from 18650 store. LFP cells are much safer and can be regularly charged to 100% without degradation unlike...

I would do plain vanilla micro inverter grid-tie then modify it however i like after final inspection and interconnect. Those new code rules are retarded and not going to stop me from doing what i want. Just make sure you really know what you are doing and don't burn down your house.

LOL @Smeeg you snooze you lose.

It was not made clear in the documentation that this battery cannot operate with high surge power inverters. So buyer could not have learned of this technical limitation before placing an order. I feel like best outcome would have been for the vendor to learn their mistake, update the...

This is how they lie by interpreting data with positive spin. Here is a chart from the data cited above. BEV sales growth has stalled since Q2 of 2023. Chart spans 2011 - 2023 by month. Attached below is excel .zip file if anyone wants to play with the data. Edit: data is for USA only.

Midnite has actual inverter design experience unlike those other Chinese inverter rebadgers. Expect bugs to be fixed and have component level support.