@@ToolsElectroDIY You'll have to run it isolated from the grid, however -- or at least here in Europe the inverter has to disconnect the solar panels when the grid is down.
@@swdev245 The demo was for a Window A/C that he clearly showed its power supply cable being connected directly to the battery backup invertor, it can't push power back onto the grid setup like this.
I'm actually don't understand why every one buy those small 100-200w solar panel for price like normal solar panel. I mean you could buy top notch longi solar panel 405w for 100$ .
I understand. But to simply the math to make it easier to follow in this short video, I used $0.2. If I dive into details, most people won't finish watching this video. Follow for more.
$0.20/kWh? That would be glorious! I pay $0.34/kWh here, before all the additional fees and surcharges the local utility provider puts on our bill. I decreased my bill 9.3% from last year, and last month's bill was $699, $140 higher than the same month in 2023, despite using 200-300kWh less than last August. We need better solutions and we need them fast!
@@ToolsElectroDIY Sadly, can't add solar to the roof here because it nearly doubles the property taxes ("Significant improvements to the main dwelling"), so I'm building a ground mount. Local laws also restrict the height of that to no higher than 8 feet, so I can only go 'wide', not 'tall'. I don't live in an HOA, but a state where the local utility seems to set the laws, not the people.
@ToolsElectroDIY Pretty standard for EU I think, at least the around to under 100€ part. Now that people can't take cheap loans out anymore prices for solar dipped quite a bit.
Don't forget the installation fees.. maintenance.. panel efficiency degradation over time... regular glass panel surface cleaning being necessary for efficient solar absorption.. battery lifespan being around 10 years, meaning you'd need to replace the batteries every decade or so.. I think. Correct me if I'm wrong, but your total expected savings breaking even with your expenses should be closer to 25 years. That's if they last that long, which they probably won't. But, if they did.
It's a cool idea, I'm happy to be wrong.. but it's currently in it's gimmick phase. It's not yet mature enough. Solar, I mean. Of course this is another opinion of mine which could easily be wrong.
The math is very wrong, first you can easy get 450Wp panel for around 120-145USD, 2000Wh storage? For what? The AC is most needed during the day and that is the peak time for solar, no sun=less need for AC. You need some battery to equalize the dips so not double but half is more then enough. Having a stationary setup with normal battery and MPPT charge controller/transformer instead of the mobile all in one unit costs the half as well. Also for some reason you count in the price the AC unit (400USD) but do not count it in the on grid power costs, let alone this will shorten your break even by 2 years. So let me do the math for you with real numbers: 2x450Wp panels=300USD max, 1x MPPT charge controller/transformer=500USDmax, 1x 50Ah battery=250USD, cables, switches, circuit breakers=150USD, total=1200USD now 1200USD/0.5USD=2400 days=6.57 years... hmmm...
@@ToolsElectroDIY in a fact I do use two island systems, one is 1650Wp and the other is 3800 Wp. Your fouled math including the AC unit in price on one side and use of overpriced premium camping gadgets shows you just wanted to make a point where is non.
Lithium 100ah battery is $200aud Mppt charger/inverter $300aud 200w solar panel $120 aud 4 panels and 2 batteries $880aud plus controller = $1180 aud. Jobs done those camping things are so expensive its not funny your math is off and the ac unit should never have been included in the prices
This math doesn't make sense. Why are you using just the daily cost to run your solar A/C to calculate when you'd break even? Amount saved would be based on the difference in price between running your A/c fully on the grid and running it woth solar no?
@@PER5Y English is my 2nd language. I'm still learning. Thanks for pointing that out, not many people do that. I really appreciate it! Stay tuned for more!
That's is the point, you can't come close to breaking even ever, that expensive battery system would likely be replaced Min 4 times in that 18 years so its cheaper to pay for the power and just invest the money or pay it off an existing high interest rate debt and you will likely save more than the extra you spend on power.
@@ToolsElectroDIYbro I’m not having a go at you. You are doing a great service by educating us. I just don’t see the point from a financial standpoint. It’s just frustrating that there’s no real way of saving money because they make the components so expensive ultimately defeating the purpose. If I had money I would use the setup to reduce my carbon footprint for sure. Thanks for the video 🙏🏼
So that's in the states. I live in Nicaragua and it literally costs me $10 extra a month to just run a fan every night. Running an ac 10 hours a day would cost several hundred a month. I imagine it'd pay for itself in about a year. Electricity is expensive here.
