Bob B
Emperor Of Solar
- Joined
- Sep 21, 2019
- Messages
- 8,606
upnorthandpersonal got me hooked on DIY solar
.... and he got me hooked on the idea of making my own flexible bus bars.
upnorthandpersonal got me hooked on DIY solar
I linked to it in the post above
.... and he got me hooked on the idea of making my own flexible bus bars.
Do note that when you get solar panels in the US from China you'll be hit with import tariffs.
The legal status of the Section 201 tariffs on solar panels, which expire in 2022
By Nithya Nagarajan and Isaac Idicula, Husch Blackwell LLP Due to various trade remedy actions taken over the course of the past few years, solar panelswww.solarpowerworldonline.com
We don't have that in the EU, so it's much more convenient to import them.
Aren’t the tariffs you speak of a hold over from the trump administration? I am not up to date on current events. Do you have specific details? Perhaps supported by viable journalist or academic references?This is what makes my head explode ... so the new administration kills my industry (oil) ... put easily 5K ppl directly or associated out of work in Texas ... about 80K US-wide ... prices of fuel has doubled -- and we are forecasting that fuel across the board will be up 88-cents a gallon by Christmas ... we now rely again on expensive foreign oil to make up the difference .... anyway -- the Government makes all these promises that SOLAR will have 100,000 new HIGH TECH jobs that these guys can all go into and then at the same time continue a policy that puts huge tariffs on the solar cells coming in ... The 3 largest solar cell companies in the US have all either filed for Bankruptcy or are about to, and of those promised 100K jobs that the current administration and AOC Green new Deal folks forecasted, only about 1200 of them ever materialized and that was as roof installers - not exactly the high tech jobs folks were promising ... You can't cry that Solar is the future and then tariff the hell out of future ... aaaggghhhh
Correct.https://www.foxbusiness.com/markets/us-solar-industry-to-lose-jobs-trump-tariffsAren’t the tariffs you speak of a hold over from the trump administration? I am not up to date on current events. Do you have specific details? Perhaps supported by viable journalist or academic references?
I believe that this is, in part, due to so much silicon being put on our roofs and into all of the solar farms instead of being made into microchips.
Hey hey, I am doing something very similar for my family house down in Kenya. One piece of unsolicited advice to you however would be: get the precision stuff/brains of the solar project from well known makers in Europe/US. Do not take chances with that. With my project, I am getting the batteries (12V, four pieces) and panels from the one Alibaba supplier, a passive balancer from Aliexpress to keep the battery bank in balance and will go with the Victron EasySolar module as the brains of the operation. I had researched a lot on Chinese inverter brans (notably Growatt) and found far too many reports of dismal perfomance, early failures and so on. I would really stick with SMA/Victron for the inverter/monitoring solution.So, instead of just doing the usual and buying some Victron and Batrium equipment and calling it a day, I went shopping on Alibaba and Aliexpress to see if I could build my entire 32x280Ah and 10kW solar panels system for under 10K Euro, keeping in mind the power and charge requirements - so not under sizing. This is what I'm getting, all including shipping and tax:
What Where Cost 20x 500W mono panels Yangtze Solar Power (Alibaba) €3733.56 32x 280Ah LiFePO4 Shenzen Haomi Electronic (Alibaba) €3215.5 5kW pure sine inverter Reliable Electric Power Store (Aliexpress) €517.91 BMS 16S 100A (x2) thanksforyou Store (aliexpress) €175 MUST PC18-10015F 100A MPPT SCC (x2) MUST Energy (Alibaba) €529.46
Total: €8171.43
Is this all going to work perfectly? Doubt it, but we'll see. If that BMS is any good I'll upgrade it to the 200A version which is 2.5 times as expensive, so that would become €368 for both together. It seems to be the upgraded version of the one Will finally found that had low temp cut-off. This is well under my target of €10K, and I'm especially looking forward to how that charge controller is going to be doing and what that inverter can actually handle. I'll test it all in-depth and I'll post an update once I know more.
strong increase in demand for these types of products
I also have 6kw version plus ..i just start testing it yesterday ..i hooked up metabo vacuum for few hours 990w (220v) and power draw that i read on jk bms is constantly swiching from 1000 to most ive seen was 1170w (was looking jk app all the time lol) i would say presume average is arround 1070w...iddle consumption is also swiching from 40 to max ive seen 65.8wGoing back a week, I'm shopping around for an inverter or two. The MUST EP3000 PRO appears identical to the Fuel Zero https://www.fuelzero.com/3000-9000w...requency-Inverter-p/fz-ep3000-lv-48v-3000.htm at $479 seems like a great deal and without the long wait from China.
upnorthanpersonal, what kind of power draw do you have when in use?
Your sources mentioned, but didn't elaborate on the material shortages that are the root cause of the microchip shortage.Sorry, no. The reason is COVID. Manufacturing plants went down (mandatory shutdowns), and we've been running on existing stock since then. Supply chains were severely disrupted, and still are. Now this stock is depleted and we're playing catch-up to increase stock levels again, and getting the components shipped as well (still not running as it was). It's not just silicon components - resistors, capacitors, etc. as well. Silicon itself is abundant, and there is plenty for both microchips and solar cells, which are fabbed in different facilities anyway.
A couple of sources:
Electronic Component Shortages Extend into 2023
Electronic component shortages will continue to hinder the marketplace in 2022 - there simply aren't enough parts to meet demand. But why?blog.matric.com
Managing the Semiconductor Shortage of 2021, Part 1
The burgeoning semiconductor shortage of 2021 hit chipmakers “like a ton of bricks,” according to one distributor.epsnews.com
Going back a week, I'm shopping around for an inverter or two. The MUST EP3000 PRO appears identical to the Fuel Zero https://www.fuelzero.com/3000-9000w...requency-Inverter-p/fz-ep3000-lv-48v-3000.htm at $479 seems like a great deal and without the long wait from China.
upnorthanpersonal, what kind of power draw do you have when in use?
Shouldn't you have a compression spring between the nut and the plate to keep pressure somewhat constant as the pouches expand/contract from heat to keep the pressure from exceeding 18 psi? I realize a spring isn't perfect due to Hooke's law, but a long compression spring should suffice for the short range of motion in expansion. Without a spring, even small thermal variances could put enormous pressure on them. |