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Yep. Tinned copper is more expensive than plan vanilla copper. CCA or copper clad aluminium is the one to avoid.

Thing is that it doesn't scale up favorably in any size or shape. You can have 100 kWh storage battery for 10k usd (or even less from 2-hand EV batteries) 1 kWh is 3600 kJ. To store 100 kWh in weight lifted to tower you need: 1 metric ton weight lifted to 36 kilometer tower or 10 meter tower...

Storage tank/boiler for water heater? Storing hot water is extremely cheap compared to storing same amount of electricity.

Black rubber hose is often somewhat conductive and black fuel hose is often even specifies and required by standards to be conductive(to prevent static build-up) Black color comes from added carbon and it also makes the hose more or less conductive.

Electrical shock wise not that huge difference. but electric arcs are nastier with 48 volts and you NEED to have proper fuses in 48v system. Some fuses are rated for 32v but not 48v. 24v system is somewhat more tolerant for stupidity(accidental short-circuits) than 48v system. (12 volt system...

Webasto/Espar/Eberspächer/Binar is the standard solution around here for pre-heating car engines. All sorts of remote kits and timers also available. And are we talking about -20F or 20F? at 20F I don't see the need but below -20F is a different matter.

And bottom one looks like difficult to connect.

Heat or cool your van. Easily takes care of your ”extra energy problem” Also get get used to the idea that you need 900% oversize solar panel array and 900% oversize battery to cover most of the time. And you are still going to have bad day once in a while with empty battery and no sunshine for...

Band saw is still missing from the photo..

Smells like trouble: The Recognized Component Mark is a type of safety certification mark issued by UL Solutions. It is placed on components which are intended to be part of a UL certified end product, but which cannot bear the full UL Mark themselves.[20] The general public does not ordinarily...

Nonsense, I'd cross out that installer from my list.

Solar panel prices are also falling at a rate that soon most people are limited by available space. 410W panels for less than 100euros(incl 24% VAT) locally here in Finland

You still have "screaming deal" for solar by living in South Carolina vs. OP's Lithuania (or Finland for that matter.. :LOL: ) 16 kWh in Lithuania vs. 106 kWh in Charlotte SC for 1kW panel setup in entire december. (or 7kWh here..) Even Steve_S in Canada is bathing in sunshine compared to Baltic...

Perkele! En ymmärrä.

Test results shown are probably quite irrelevant. Contact is opening at limited speed in any case. I’d hazard guess that the mechanical contacts are nowhere nearly fully open in 0.00035 seconds. 2 Amps is not going to make much of an arc in the contacts unless you are really unlucky with really...

In my opinion the whole fast-blow "idea" of class-T is bit ill-informed. Any decent inverter should have very fast overcurrent limiting built-in. Only if something goes terribly wrong in the inverter it will draw enough current to blow fuse. Fast fuses are typically too slow for protecting the...

Cool! Oscilloscope measurement for the current and clearing time would be really nice. Would be also interesting to see how the cheap Classs T alternatives like bs88 and NH fuses would measure

Honda’s are really proven and reliable option. I’d also consider LPG conversion kit as it gets rid of modern gasoline storage&stability problems. 10 yr old LPG canister runs just the same as fresh.

There is less than damage on terminals and bus bars than I would expect to see if something heated up there and ignited the MDF. Then on the other hand MDF conducting enough current to ignite doesn't make any sense either unless someone spilled battery acid on the MDF previously or soaked it in...

Not suprise with Liitokala-Varicore. They have been "famous" in flashlight community because of their counterfeit or recycled 18650 batteries. Aliexpress is a wild west bazaar and in generally Chinese way of doing business&ethics are different from what you are used to.

Pull/tensile strenght test is widely used to judge the crimp quality. bigger sizes get bit impractical or you need to get bit creative to make suitable load. with quality lugs I’d aim for MIL-xx specification, 875lbs for 4/0 cable

While mods are sleeping Speciality bolt collections belong also to this topic

One option to use excessive panels would be to point some of them to evening sun. This would spread out the power generation to longer time span and to those late afternoon/evening hours when you have actual power demand.

Maybe worth noting that these are most often copper clad aluminium (CCA). Conductivity is only about 50-60% of real copper cable and you would need to select 2 gauge instead of 4 gauge copper.

Joule has been the SI unit for last 76 years, I believe calorie is used with food energy content in US despite being half-metric? (also by grandmas in here) US should express the chocolate bar energy content in BTU's or foot-pounds-force :unsure:

Good shunt setup is lot more accurate on low current than (budget)hall sensor. Hall sensors have quite large offsets, +-0.5A for the linked 100A model if I found the right specs. Resonably good shunt setup on the other hand can have something like 0.01A to 0.05A offset making it 10 to 50 times...

Looks really easy in most of the US compared to Europe, let alone the northern parts of Europe like Finland. :whistle: 30 kWp panel set in december: Alamosa, Colorado: 4100 kWh Helsinki, Finland 295 kWh (the most southern part..)

Didn't have pic of my drill press but you get the drift.. anyhoo, found the bandsaw.

Oven part is just resistive heaters like normal electric oven. No induction in oven part.

You got it mixed up: Shouldn’t really come as suprise that German engineers use metric system to land in moon.