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Gary, help me out. Enphase with its microinverters versus regular solar panels: While the individual micro inverter is a great idea and I'm completely on board with it, I have to agree with the critics that the extra AC/DC invert step is very costly for efficiency. (7-10%?) Are we going through all these expensive electrical acrobatics so we can keep to only one wire traveling down the side of the house to the powerwall? Who cares? If you had, say, 20 panels, why not just run 20 individual, isolated wires down to the basement, (separated in case one panel goes dark) hook them straight in via some kind of regulator to the battery, and save a conversion step? A wire conduit is ugly regardless of whether you've got 20 wires inside it or just one. I need a reality check here.

Fantastic video. This should be highlighted as the first video to watch, as it explains so much stuff. Thanks, Gary!

I love your vidoes Gary, learning so much before my install takes place. I had been considering a second battery to my system to benefit from a very good 12 month SEG agreement of 40p. What I am now calculating is not purchasing a second 9.5kwh battery but instead using the 12:00 to 07:00 off peak period to fully charge, discharge and then recharge to 100% at an inport rate of 6.9p and an export rate of 40p. My 7.4kwp solar system to do it's thing and export throughout the day.

We have 30 enphase inverters, 8 years on and no service needed. Monitoring panels, a quick look on the app every 6 months shows any dud panels, so far so good I think it's worth the extra cost and the additional 2 year payback time.

I wonder if GivEnergy 13.5kw All-in-One go down in price given PW3 has superior features including water submersible bottom half, 11.5kw inverter, better app integration i think?!

How do you access these electronic nunits on a roof when one fails...seems should be easily accessible.

Gary, thanks for Vid. I have 38 Enphase solar panels and 2 X Tesla Power wall batteries at home. But the discharge is a problem as we have a Tesla model Y and would like to get a second EV soon. The discharge of the battery is a disappointment as we often need 14 to 17 Kwh when we are charging the car and at home using appliances. Can you link powerwall 3 to a sting of powerwall 2 batteries?

Been looking at adding solar but can't affor the £19.5k inc 15kw of growatt battery but see on Octopus only let you feed from a give energy battery. We are already on octpus go as we have an Enyak through motability, watching this has made me realise a battery alone could be a good investment letting us capitalise on that 9p/kw window for all our energy.

Hi, I noted the use of power exceeding your inverter to charge a battery which is limited by the charge requirement of your battery. Would it be possible to dump any excess into a thermal battery such as a hot water tank, sand battery etc?

Future we have been installing these for over 10 years

Great Solar Vids. Gary! 🙂 However using Pounds is quite challenging for your friends in the Antipodes! 😱 We moved on to that new fangled $ in the swinging '60's which you might remember! 😉 Will your new Solarazma Calc. offer such crazy foreign currencies for us here in the Sunny 'Lucky Country'?.... 😃

Excellent content. Makes me proud to be in solar sales woth a company that provides microinverters.

I pay 9 cents per KWH in my home state. Solar/ batteries for me are for emergency preparedness. ROI is non existent 😆

Hi Gary, really liked your video on battery placement, my new system has a Hanchu 9.4 blade battery with integrated fire suppression. I am interested on your thoughts regarding this battery.

According to Alex Reid (a YTuber) all PowerWalls are LiFePo4!

I am just considering getting the powerwall 3 with solar installed, I was thinking of going with victron as I have a 3 sided roof so need the 3 mppt`s. This may be the solution to my problems.

Your videos provide a useful insght into the options and costs associated with the different Octopus tariffs. I have a 4kwh array and 15.2kwh battery system, panels were installed 12 years ago and and I get the maximum FITT payback, batteries were installed October lat year. I am not sure how the flux tarriff would impact the 50% notional FITT I currently receive. I thought my electricty consumption was high compared to the average UK household 6000 compared to 2900, yours at 7300 seems beyond belief. Are you based in the UK, I have been caught out with figures in the past by South Africans with heated swimming pools, jacuzzis etc. I am on Agile Octopus and manage the charging periods on a daily basis and the loads to best advantage. My average kwh cost is running at 9.8p per kwh and costs me £620 for the 4500 kwh I pay for the year, your figures for Intelligent flux costing 21.45p per kwh would suggest that it is not the best financial option for me, am I missing something here. I do take advantage of less than zero agile costs using air con and heating storage rooms to maximise the benefit. NOTE my figures are for the first 6 months of 2024, doubled up.

Another UK installer has confirmed LFP .

I am about to get the powerwall 2 installed and will revise my order! Thanks Gary! One thing if you could pls help double check from Tesla as I couldn’t see the three letter “LFP” in the user manual. And I saw in another video saying it’s a Li-Ion on the powerwall label (from a UK user, not US ) . Thanks Gary

Unfortunately not available in all the UK as the Powerwall is not available to purchase in Northern Ireland

Needs to be a smaller more modular package to keep weight resonable for one to two people to handle

My Powerwall 2 has the storm watch app/function.

quite liked the tech, but the unreasonable installation cost from limited pool of installers blew this option out the window for me, so not excited at all

You will only get about 75% of the rated value so you need 25% extra. However if you live in a cold climate you need to calculate the Temperature Coefficient of VOC or too many volts in winter could kill your inverter.

hey, be great if you could do a video in a month or 2 showing if your summer on OIFlux would have beaten regular Flux for £. Regards

Yet another very informative video Gary, thank you. Quick query on the ref to the gateway. Are you saying that an upcoming software update for the PW will render the gateway unnecessary? If so, any idea when said update might arrive. Happy to save £600 and even happier to have less clobber on the wall!

Maybe a great battery, but please if you live in regional Australia do not even consider Tesla. They have no support infrastructure for “none city” read regional installations. Good luck

Interesting video. Thank you

I think the Powerwall still only supplies single phase to the house on blackouts - not 3 phase.

Hope you are having a nice break Gary! I have ordered PW3 last week and very much looking forward to my solar and battery installation. I have moved to Octopus using your referral code so we both should be getting a little bonus soon. Thank you for the great content!

Could you please confirm the bidirectional charging capabilities? Are you able to use this on any EV capable of VTL to charge the powerwall using the cars battery? I would love to hook a BYD ATTO to this to supplement the powerwalls capacity when needed

STILL only 13.5? Disappointing. Is it much cheaper and smaller?

So US don’t get access to the really great options? No Huawai? No BYD? No Sungrow?

Lithium Ion batteries need to go though very dangerous especially in EVs...need a new type of batteries that's efficient and has longer range and doesn't drain as fast.

The Tesla powerwall is a trick piece of kit but its not at all competitive in the home storage market (I own a Tesla car and Starlink so not anti Tesla). I would pick Pylontech/Dyness/Fogstar instead as they offer a more robust method of storage, are half the price and can we swapped out if you have a faulty module. It only takes one duff cell in a Powerwall and the whole pack goes down. So it's £5800 (plus fitting) for the PW3. For the same money you could have: Six Pylontech 5000's @ £5925 plus fitting, or six Dyness B51100's @ £5970 plus fitting, or six Fogstar SR51's in a rack with busbars for £5,999. All of the three I mention would give you 30KW/h instead of 13KW/h. When buying batteries storage is King in my opinion. For comparison; three PW3's would cost £18,600 which for the same money would get you 30KW of PV, 30KW/h of storage. I really like your content Gary, but please try and be objective when introducing products as I believe this will help grow your channel if you are more impartial.

I am getting PW3 simply because with their Power Management System, there is no need for me to derate or upgrade my main panel.

Have they not paired up with octopus from what I have been reading

Im not putting any money in Musk's pocket...

I will be on the Tesla stand tomorrow at InterSolar will let you know what I find out 👍

I see Heatable selling these for £7k with no interest, they also sell the 2 model, not sure which to buy as I don’t need the built in inverters

Just wondering about GivEnergy's GivBack tarrif. They say it is NOT supported if you are on Intelligent flux. GivBack stands to make a huge payback in the winter, so will it be that by switching fromFlux to intelligent flux I end up loosing out by not being able to be part of GivBack? (and also the secondary newer tariff) It would be good to know your thoughts..

Absolute garbage video m8

Oh bugger , I was just opting for a Sigen system as three was not available. Spanner in works !

Great news that we in the UK will have access to the PW3.

Is it worth considering the power conversion variance between string inverter and micro inverter based systems when considering the overall power loss of each technology. If it maters, 1st pass plan is a grid tied 17,415 KW solar system ( this is how much will fit on roof without being visible )with 42kWh of batteries (1st pass thought), goal is to allow me to be as energy self contained as possible. This will be a DIY project.

Just seen this video and got in a panic ,,, I’m getting powerwall 2 with solar PV installed in two weeks time, I had to call up and revise my order to swap out my power wall 2 for the new powerwall 3 , getting installed late August ❤😊

Brilliant I want 3 one in each of my 3 properties, hopefully the installers will do a fair price installation.

Price has come down considerably. I’m sure batteries that size cost twice as much a year ago

i have the powerwall 2 , Do you know if i can use the same gateway as the one i have ?

Really not seeing much difference in specs for the PW3 over the PW2