Over the past 5 or so years, I've seen population projections missed over and over. Growth is slowing and it's slowing faster than projected. Almost every projection is too high. Does that have any impact on climate change rates? Or is it a wash because societies with shrinking populations are using more resources? I've not been able to find much research here.
I don't know much about UL but I can say that FCC certification (also technically required) for electronics can range from about $3k to something like $30k depending on what you're doing.
($3k would be for "unintentional radiator" device, i.e., not supposed to be a radio, $30k would be for "intentional radiator" device, i.e., supposed to be a radio)
FCC ensures a product doesn't cause radio interference, while UL ensures the product is safe to use and won't cause fires or electric shocks. For DIY, your primary concern is UL certification.
Because of customs product import rules, that FCC stamp is often not optional. Now if it was a dodgy seller, the stamp will not match the physical devices on rare occasion. =3
That roughly lines up with what we paid* to get CE and safety stuff done for a small battery-powered product with a radio on the EU market (primarily in the UK).
*Testing and tweaking and then sign-off in grown-up labs.
In general, almost all insurance companies will demand UL stamped hardware, and most mortgage/lease/commercial property requires insurance.
A hobby BMS is usually a bad idea, as most kits from unknown origins prioritized cost over safety. Depending where you live, prior to roof installation there may be additional zoning and signed engineering drawing requirements.
It is not hard to find UL equipment, but expect to pay about another $600 for the BMS. Yet, it is better than a house burning down, and the insurance provider denying coverage.
Have a look at local certified installer companies, and make sure to get some real references in your town. Just like most HVAC companies... some installers are just over priced scams. Some folks claim https://www.pegasussolar.com/ was inexpensive, and might be worth a call. Best regards =3
It doesn't have to be a certified install company in many places, it just needs to be inspected which most states will do for homeowners. (if your area is different contact your representative)
UL or other certification is a very good idea. They can't automatically deny coverage for lack of certification, but it becomes a much harder fight for you to prove the non-certified equipment wasn't at fault.
But in the rich-poor left-right quad, only one square is strongly against importing workers, and it's on the right side. Even just looking at the right side though - it really feels like the non-rich right's opinion on this is louder than the rich right's opinion (though, of course, it is money, not volume, that directs both parties in most cases).
Many big tech CEOs financed Trump's inauguration. Many donated to his ball room. Those MAGA hat wearers paying millions for access/behind the scenes policy creation are.
Adding to OPs point, Trump did a major immigration push, yet a major push to punish companies/employees who create the demand that immigrants were filling was not part of that. Imagine launching a 50+ billion dollar drug war, but only going after drug users.
It sure reduced salaries for tech workers where most H1Bs went to work, didn’t it? Are you arguing we didn’t bring enough H1Bs? Are we holding it wrong?
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