My Tesla solar panels and powerwalls got me through the 44hr Houston blackout ☀️⚡🏡

@RedstoneSolar

3 жыл бұрын

Crazy cool to hear about people using it when they need it!

@Redstone Solar Thanks for the video. I'm trying to understand the options I have with the transfer switch if it's grid tied. When the power goes out, the transfer switch will remove the connection to the grid--perfect! Now I can use the power from my solar system to power the house. What I don't understand is do I have to have a battery for some reason for that switch to work? I understand the value of a battery otherwise, but trying to determine if it is technically feasible to not have a battery, but run the house on whatever juice comes from the panels.

Ok, If there is a safety switch to run a generator while power is down, Why cant there be a safety switch to operate the solar system while power grid is down?

What this video post is talking about is homes with only a grid tie inverter... they are required by law to have an anti Island safety feature.. so every grid-tie inverter on the market will automatically shut itself down when it sees that the grid is out. If this is a problem that you can either have a off-grid inverter on hand or switch to a hybrid inverter that can do both. While it is preferable to have a battery bank for a few reasons it is not absolutely mandatory for the purpose of running in daytime

In a grid down situation, your power is shut off (even with solar panels) because the power sent back to the grid could cause linemen or other electricians harm. It isnt for nefarious reasons. its because of safety concerns.

@RedstoneSolar

3 жыл бұрын

Linemen working on the grid are generally working with live conductors. This is definitely not for safety. Being a linemen is a dangerous job. The reason why solar panels shut off in a grid down situation is because the system doesn’t have all the components necessary to produce electricity independent of the grid. Software tells the inverter to turn off but hardware keeps it from producing stable power.

@epnuzuluaga766

3 жыл бұрын

@@RedstoneSolar Either way.. it's a sucky situation when you have tons of solar hanging out on your roof , collecting solar energy that you can't use because you don't have a battery bank, and are grid tied.

@SkepticCyclist

3 жыл бұрын

@@RedstoneSolar Off grid inverters and charge controller do allow panels to work when the grid is down

@DennisMathias

Жыл бұрын

Baloney. If you throw the transfer switch that all is taken off line. Some of this happens automatically.

@isovideo7497

Жыл бұрын

Correct - it's called "anti-islanding" and it is a legal requirement for equipment that injects power into the grid. It applies to micro-inverters or whole-house inverters. Anti-islanding has to complete within 2.0 second (see IEEE 1547 section 4). I know about this as I designed the anti-islanding system for a micro-inverter, where the output may be driven by many units which makes grid-down detection more difficult. Note that some whole-house inverters can send power your house as if it were off-grid, and simultaneously feed any extra power back onto the grid, or take power from the grid if there is not enough battery/solar energy available. This is not possible for micro-inverters unless they have a grid output and separate "off-grid" output.

Mine does I did my own, solar, people be smart take your circuits off, you're grid, put them in a sub panel feed it with solar, and you'll have power in a power outage

Hey there! I just watched the "Electricity" video and it got me thinking about how crucial power is, especially when you're out camping or spending quality time with family. If you're looking for a reliable power backup solution, I highly recommend the Segway Portable PowerStation Cube Series. With its massive capacity, fast recharging, and waterproof design, it's perfect for powering up your devices and appliances during your outdoor adventures. Stay powered up and enjoy your camping trips!

I develop a automatic device which can change the ongrid pv string into offgrid pv string and We can use the solar panels for offgrid system during Power cut

Great video!

That’s why one should use Enphase IQ8 😊

Two reasons why from a utility protection stand point anti-islanding is required are the type system grounding used on the local distribution power system and the fact that inverters produce very little fault current in response to ground and phase faults. Depending on the type of grounding used on the utility system, different types of overvoltage phenonium can occur without the inverter being able to detect it locally at the inverter terminals. This is usually two fast for local AI techniques to detect anyways and we often require additional faster anti-islanding techniques if needed. A pure inverter system supplying a distribution grid would not supply enough fault current to detect most types of higher impedance ground faults on trees, pavement, etc via it's under voltage settings. Live wires that are down touching pavement or a tree could start a fire and produce an electrocution hazard to the public. This is biggest challenge facing the power industry IMO when it comes to moving to a mostly or pure inverter based gird with batteries. I don't see it working as reliability or safely as rotating based generation for fault detection and isolation. Therefore, it's better if they just disconnect and prevent the potential downed live wire from occurring.

@RedstoneSolar

3 жыл бұрын

Love the technical explanation. thanks for the insight.

Do you need the battery when getting the power switch to use solar power produced when grid is out?

If I am going to spend big money on solar panels, the last thing I would allow is for the power company to control my home power system. The transfer switch will go by the way of the dodo bird if the power company has any say-so in the matter.

Your inverter sending power to the grid shuts off on grid-down in order to not endanger line workmen, and it is a legal safety requirement. it's called "anti-islanding" and is required for any equipment that injects power into the grid. It applies to micro-inverters or whole-house inverters. Anti-islanding has to complete within 2.0 second (see IEEE 1547 section 4). I know about this as I designed the anti-islanding system for a micro-inverter, where the output may be driven by many units which makes grid-down detection more difficult as they end up being fooled by each other's outputs. Note that some whole-house inverters can send power to your house breaker panel as if it were off-grid, and simultaneously feed any extra power back onto the grid, so the grid does not directly feed your house breaker panel. These systems must also be able to anti-island by diverting excess solar power to charging your batteries, or throw the power away by changing the solar MPPT load. These systems can also take power from the grid if there is not enough battery/solar energy available, and can start a generator if the grid is also not available. This complex behavior is not possible for micro-inverters unless they have a grid output and separate "off-grid" output, and the ability to be centrally controlled, or come to a correct consensus decision.

You need a hybrid inverter for that

Legend! Hope I can get it done.

What about pulling your main breaker and running a generator? Like your batter/ inverter power solution

I have solar, and I want to add my own batteries to store the power if the grid is down in day time. Basically get power from sun to the battery, then use the battery, while sun is goind to batteries

Get an LG Battery! Personally would not purchase any other equipment in my country, panels are amazing.

They can work even without battery backup with an off grid inverter, charge controller, and transfer switch. The output will be adjusted to the demand of the house.

@jeffgreen7897

Жыл бұрын

Not at night

@SkepticCyclist

Жыл бұрын

@@jeffgreen7897 Tell me more captain obvious. I think everyone knows solar panels only work during the day.

@henrybrar

Жыл бұрын

@@jeffgreen7897 no shit.

Who in az can you recommend?

Who can I call here in southwest Florida to retrofit my grid tied solar power so I can have electricity when the ulitity company is down?

So is this because the inverter itself needs to be powered (by the grid) in order to do its thing? Or because the inverters on their own can’t be relied upon to provide a stable source of current since solar without battery is so variable, and are only designed to supplement the grid power? Or something else?

@RedstoneSolar

3 жыл бұрын

I guess the point I was trying to make was that the average grid tied inverter didn’t have all the electronics necessary for back up power. It’s not as simples as the inverter has to shut of when the grid goes down because it’s the power companies policy. It’s really because there are a dozen other parts the system needs. (Auto transformer, meters/CTs, transfer switch, batteries, etc). But both of your reasons are correct and part of the big picture.

@jeevanraj5305

Жыл бұрын

There are so many things wrong in this video. Thia is true only for on grid or grid tied solar system. Off-grid systems and hybrid system can work during power outage. The reason is on grid sysrysends excess power back to the grid. There are two important points 1. If there is a person working on poerline and they turned off power for your street but your system sends power through the wire, he might get electric shock. 2. Solar produces Dc which can be easily tied to another dc source. But grid runs on ac and it needs to be synched. So the inverter takes a reference line from your grid and matches the frequency of generated power same as the grid power so it can send power back. Without reference power, the reference power frequency is zero and the inverter won't work. It can be designed to work independently but then you will face the first risk. The laws are there for the first reason. So you can use a hybrid inverter and it can smartly sends power only one direction during power outages so you can use your system continuously. Still a solar disconnect switch is required to disconnect the total power to the house to work on the wiring when needed. The power company policies and local laws are there to enforce these practices for above mentioned reasons.

@Denindustriellarevulutionenoch

6 ай бұрын

​in case of an emergency could I hook up a 240v line from my generator into the inverter to trick it into believing it's the grid?

Your explanation was wrong. The panels work when they have enough sunlight. However, your grid tied inverter will typically not turn on when the grid is down. Why? Your inverter back feeds the grid at 240 volts that the utility wire carries to your local transformer. Now this transformer on the utility pole works in both directions and is usually a 20 to 1 transformer. This means the utility worker working on a supposedly dead line can be hit with 4,800 volts from your house's solar panels. 240 can kill, 4,800 turns you into charcoal. So dead utility means your inverter cannot feed power to the utility line like it is designed to do. So a transfer switch, like for an external generator and an off grid inverter behind this switch is used so utility workers don't die.

My system isn't grid tied, I live in rural UK where power outages are the norm. I am the only person on my street with power when they happen. Get an mppt charger and battery bank. Problem solved.

You tell em sexy solar man!😍

@RedstoneSolar

3 жыл бұрын

I'm only a sexy as the LG solar panels I stand next to.

Thank you for sharing the tech but I don't care. We want to use electricity when we need it, not much care what has to be done to make it happen. How much would it cost us, per month, how much money will it cost to keep it working?

Hard to watch with all the cuts

Poorly explained. No mention of off-grid inverters. Like another commenter said allready, when there is maintenance being done at the transformer station ALL the power suplies are shut down, including every solar power plant that is connected to the mentioned transformer. Please try to do better next time. Cheers.

It is the biggest trick and lie out there. Why buy a battery that will not charge when there's no grid power, better to buy more panels than to waste thousands of dollars on the battery that doesn't charge when the grid power fails.

So. You in jail or win the lotto?

This is bull !!!!!!! I dont have power even though i have a battery