That is a great summary towards the end, the idea that you borrow the money on a bank loan (or on a morgage extension where it should be cheaper) you borrow the money on a 10 loan and the savings you make against your energy bills from the 'grid' actually pays for the 'Loan' and the whole installation is pretty mind boggling. To essentailly get you home converted to becoming almost self sufficent or wholly self sufficent and end up with kit that will save you approx another £30-40K every ten years going foward is probably the best bit of business anyone could make and with an EV thrown in, that could save another £3k every year in fuel (£30-40k every ten years) or selling excess back to the grid for a further profit..
Awesome! Thanks for all the detailed information. Your system looks impressive. Just a heads up for people in areas at risk of hail (I live in Australia), not all solar panels are equal in terms of durability. A few years back we had a storm with tennis ball sized hail. Many of the cheaper, newer panel brands did not fare so well. Our 20 year old panels came through fine. You might need to shop around.
This is well put together video. Very useful, I’ve ordered a similar set up and whilst awaiting installation I’ve been second guessing myself, but this reaffirms my original decision. Thank you.
Hi, this is great, we’re based in the IoM too. Supports our decision for solar, deposit paid and in the queue 😎. We are into our 2nd year of ASHP too, no more oil 👍🏻.
Hello Alan 👋, that’s really good news to hear! Solar PV and battery storage pairs very well with ASHP - and it’s fabulous to not have to pay Manx Utilities when you can generate yourself at home. Payback has fallen from around ten years for solar pv here to around five years… scary, isn’t it?
I'm retired and must start taking RMD from both of our IRAs, since we don't need that money we are going to plow that $$$ in Tesla Solar Panels(12.9 kWh) and two Power Walls and it will get me the required federal tax withholding to get the entire 30% tax credit on year one. We might splurge and go with 3 PWs just to be safe. Given the vulnerability of our power grid, any adversary of the US could shut down our power grid fairly quickly and without warning.
We ordered a Tesla 2 system to complement our existing 4kW PV system. 14 months later, still waiting, we scrapped the order and ended up buying a 13.8kWh GivEnergy battery system costing £8,500 (including EPS system) We get our grid energy from Octopus Go and fill the battery system to 80% capacity each morning at 7.5p per kWh. Solar PV provides us with 20%-30% of our daily usage in winter and we expect 80%-90% in the summer. Solar PV system cost £13,600 and has generated £18,500 FIT payments so far - the excess covered most of the cost of the new battery system. Battery system has reduced our average daily cost to £1 for the energy from the Grid and £0.49 Standing Charge
@@DivingDeveloperMy system is not as large (6.4kW solar & 9.5kWh battery), however our daily energy usage is lower, so I’m finding I can run the house and top up the EV on solar and battery alone. Too bad I still have to pay the standing charge, but once I get the go ahead for the Smart Export Guarantee payments that should cover the costs of the standing charge.
Hello Michael, thanks for your comment :) Tesla Powerwall can only be ordered via a third-party installer; there's a list on the Tesla website: www.tesla.com/en_gb/support/certified-installers-powerwall. The Powerwalls in the video were ordered through and installed by Manx Solar Electrical - a Tesla-approved installer in the IoM.
Ok thanks! I'm living in Finland - tried to google for 3-rd party installers with no success - maybe should try harder 🙂. Good luck to you with your channel and other projects!
Hi, thanks for the video. i have a similar but smaller setup. 8Kw solar (two 4KW arrays, one east facing and one south), plus a single tesla powerwall 2 which is exactly one month old today. I waited 6 months for the powerwall to be delivered and fitted, but boy is it worth the wait. I am with octopus and am awaiting the november bill so that i can see the first half of the month and compare against the second half of the month (ie before and after the install). However from my rough estimates, my on peak cost of electricity is roughly £1 per day, and my off peak costs about £3.00 which includes charging the battery and an EV. We dont have gas or oil and so this is our total energy bill with the exception of logs for heating the house. thankfully my original solar array was fitted 12 years ago and so i get a feed in tariff each year of around £1500 and this increases by 7% per year. This means that due to the extra investment i have made in the new solar array and the battery, that i have moved our bills back to where they were when we first moved into this house, which was that over a year my energy cost me 1300 and my income was 1500 giving me a surplus. I keep looking at a second powerwall as mine does not last the entire day, typipcally running out at around 21.00 leaving us 3.5 hours before cheap rate starts again. The question for me is can i justify the second battery on cost saving alone and i am not sure i can as the 3.5 hour difference is around £1 per day and that is over winter only. During the summer months i expect to be off grid most of the time. in relation to what i wished i had know before hand, my answer is less related to the known element and more towards i wished i had thought of ground mounting my last array rather than having it on the roof. We have 2 acres of land and can easily put more solar on a ground array that tracks the sun. the main benefits are lower cost to fit, easier maintenance to clean and if anything does go wrong, i dont need scaffolding putting up. I am looking at another 4KW in the future and will have it ground mounted. cheers for the video. have subscribed and look forward to watching your update videos so i can compare results.
Thank you for watching and leaving a handy comment; I'm glad you've found solar very useful, and you're the first person I've heard from who also has two arrays! RE: Another Powerwall - it sounds like you've done the calculations, and it wouldn't be a financially helpful thing for you to do. Much better to put that money into more panels (although this will change your battery storage calculations as you may want to export less and store and use more. If I had the clear space to do so, I would look into ground mounted too, and potentially not track - an optimum angle and south pointed would be ideal. You already have an East-facing array which IMO is the most useful of the non-southerly directions as it is ideally placed to soak up the morning's first light. Thank you for subscribing; I also make underwater, technology and business videos but I have planned to make >regular< followups to the solar (and powerwall, and EV, and later - as we move off our LPG gas central heating too). Thank you again!
@@DivingDeveloper thanks Mike. I came across you channel yesterday and watched a few of your videos, the Q&A on EVs which was very good, a day in the life of a developer which I liked as I have a dev team myself. I spotted that device which you turn over to start tracking time which looks fascinating and would love to see a video on that. obviously your solar and power wall videos. I also watched the star link video which was interesting as I also have one. Living in the countryside, my best adsl quote came in at 1mb down and 5mb up. That same figure is still true today so I had no choice but to get starlink which launched just at the right time, ie during the pandemic when I needed to work from home. regarding the extra battery, I have been looking into V2G as I specifically leased a Nissan Leaf for its chademo connection which is bi-directional. I just missed out recently on taking part in another trial which would have given me the hardware to both charge my car as well as discharge the battery into the house during peak times. My thoughts currently are keep looking for the V2G hardware to further develop and buy one of those to turn my car into another battery. In the long term, I may get another power wall depending on my needs. I keep looking at wind turbines as another form of energy micro generation. I live at the top of a hill and we get a lot of wind. Its the one form of weather that we do not benefit from, ie we collect the sun for energy, we also have a rain water harvesting system to collect the rain for our house as well as our garden. The only thing putting me off is the reviews I see on how problematic they can be and the maintenance costs. Others have just said add more solar as at least it is mostly guaranteed and has no moving parts to go wrong. My electric needs will change again this year as we buy the Nissan from the leasing company and I take out a new works lease on a second EV. I am currently thinking of the polestar 2. Once we have that in place (Dec) I will need to look again at our energy usage and storage and see what needs tweaking. The idea is to get as close to self sufficient as possible. I have 16 years before I retire and I want to make our retirement as comfortable and as cost efficient as possible. Thanks again for the videos. John
Thank you, John! Your comments are useful for me - you’d be surprised that very few people give this sort of useful feedback! I’m glad you liked my day in the life! It feels a little premature putting together a video showing my day when I didn’t think that I had anyone in my audience who might find it insightful or entertaining. My plan with this is to take it to the next step and ‘build in public’ something new, perhaps a mobile app. V2G over CHAdeMO requires a three-phase connection. Great, if you can get it. Especially good if you can find a supply of used or damaged Nissan Leafs. £/kWh these are the cheapest reliable ‘out of the box’ (i.e. no DIY) storage that there is. Robert Llewelyn from the Fully Charged Show has a pre-production V2G unit installed and AFAIK hasn’t made a video about it but you can see it on some of his garage clips. We’ve looked at wind too - top of a hill helps and so does being on the IOM - we get a *lot* of wind here and it’s predominantly over the darker months. But as you say, maintenance and moving parts makes it an added complexity. We have bats too, so will need an enclosed system as I doubt we’d get permission for a tall vertical turbine. I think it’s a great ‘addon’, a bit like having the two solar inverters - a little added redundancy and ‘security’. -Mike
Do you have solar or home batteries - and what do you wish you'd known before installing? Or maybe you're looking to install some home generation yourself for the first time?
Just a suggestion. Probably be best to lower or do away with music in the background so we can hear you and not the music. Music is too loud and unimportant. What you are telling us is important to hear. 3:33
Thank you, I appreciate your feedback. In my latest videos I have removed or significantly reduced the music and also fixed my microphone issues. Like this! th-cam.com/video/4gs9142r5aU/w-d-xo.html&ab_channel=DivingDeveloper Thank you again, Mike
Isle of Man: Future Energy Scenarios (July 2021) - collated usage of all residential annual usage, divided by number of residential properties. Checked with DNO in September 2022.
What I'm confused about is, extra power from my panels is banked with my electric company... So, other than a black out, why would it help to bank it with a powerwall instead?
All things considered if you get the same price for import as export (note: this is extremely unusual in the UK - less so in the US) then yes, financially there is less incentive to invest in home storage.
@@mikefas5406 Yes no problem. So you said, “extra power from my panels is banked with my electricity company”. What this means is - your electricity company pays you for your excess solar. The rates that electricity companies pay for a unit of solar energy is almost always less than they are willing to sell you a unit of energy from the grid. If by chance the export price and your import price are the same - I know of one TH-camr in Ohio where this is his case - there’s no financial motivation to have a Tesla Powerwall to store excess solar as you say. But that isn’t the case for 99%+ of people. Is there something in particular that you’re looking to understand? What can I cover in a future video that would help?
Electricity isn’t free. It costs a certain amount per unit. In my video I explain the costs associated with our supplier. Import = purchasing electricity FROM your supplier. Export = selling electricity TO your supplier. I hope that helps.
Thanks for your comment, good morning! I’m not an installer so I’m not sure what you’re seeing there. You shouldn’t be able to connect directly to your PW2 (that’s an installers portal) - but if you are, how cool is that? It could be that the app and PW portal are displaying different values at different times due to lag between the two requests (solar is variable - so too is the PW content). You also might not be looking at your PW’s?
@@DivingDeveloper Actually there is an option to connect as a customer. Just login to the gateway direct. There is a video on youtube that explains it. Anyway than you for the reply!
@@DivingDeveloper I mean, he's accounting for a steep rise in energy costs due to inflation to increase the amount of money he could save per year in the future. Not only that, but he still pays hundreds of dollars per month for going on the grid which will also increase with inflation. Tesla's solar warranty doesn't last the 20 year life span of their solar panels whose efficiency degrade over that time which means their cost per month for going on the grid will increase even more over time. He may even have to replace his panels before he pays these first ones off at that rate.
Hi, it’s okay, you can just say, “you” since that chap in the film is me on my channel :) Thanks for explaining what you meant. Here’s my thoughts on that below. The solar will eventually pay for itself but in this video I explain that should energy costs increase by some amount (around 30%) that they the ROI breaks even immediately. Should energy prices reduce, the solar will still eventually pay for itself but on a longer term. I’m not sure why you think I’m using Tesla Solar panels when I explain in the video the exact model of solar panels I’m using and the warranty details - it’s JASolar, a Chinese brand. Yes efficiency falls over time, but it isn’t a cliff edge. Those who installed solar 10, 20, 30 years ago have examples of the type of degradation to expect - and those are with older less reliable technologies. I hope this helps, but I do explain this in the video if you watch it to the end.
Updating, today 2023/1/11, they said the Powerwall doesn’t work well at 0°C but today is 7°C and right now my solar panels are producing over 7kw but Powerwall is charging at only 1.2kw! Powerwall is a waste of money!
It sounds like Powerwall is using some of the incoming DC power from your solar panels to warm the cells. This is by design. I think your Powerwalls are outside? Your installer can diagnose if this is the case.
@@DivingDeveloper In my Tesla app I can see it was charging at 1.2kw but the remaining electricity was going out to the grid! It was not being used to heat itself. Or it’s only my Powerwall that is not working properly. I already contacted the Tesla support, they came here but didn’t solve the problem. They only told me to self charge my Powerwall in the morning (before the sunrise) using time based mode (paying the grid electricity) to heat the battery before the panels start to work. That means I’m paying to heat the battery or it doesn’t work well. But even doing this, yesterday it was cloudy in the morning so that 30 minutes self charging didn’t work and when the sun completely appeared around 11:00, the Powerwall was not heated enough to capture all the electricity produced by the panels. All the extra electricity was wasted to the grid! In normal condition it should be charged to 100% but yesterday it was only charged 50%!
@@Firegarden999 Thank you for going into more detail. I had the same thing once I switched modes from 'Self-Powered' to 'Time-Based Control' in the Tesla app. It takes the Powerwall some time (I think it was at least a week) to learn and optimise itself for our routine. It was nearly perfect then ... except for the odd day when it tops up overnight too little or doesn't leave sufficient space for the morning's surplus solar. As one of the input indicators that it uses to learn is the export time/quantity and we have no export, there's no CT clamp by the export meter to feed back to the powerwall. This means it doesn't know when it's being too conservative... Hope that makes sense? Definitely share your experience with your installer, it might be that they need to look into this if it isn't an AI/learning issue.
Message received! I've removed or significantly reduced the use of background music in my recent videos! th-cam.com/video/4gs9142r5aU/w-d-xo.html&ab_channel=DivingDeveloper
![ร้อยพ่อพันแม่ - WanMai [Official MV]](http://i.ytimg.com/vi/XY2pNYASEbg/mqdefault.jpg)
That is a great summary towards the end, the idea that you borrow the money on a bank loan (or on a morgage extension where it should be cheaper) you borrow the money on a 10 loan and the savings you make against your energy bills from the 'grid' actually pays for the 'Loan' and the whole installation is pretty mind boggling. To essentailly get you home converted to becoming almost self sufficent or wholly self sufficent and end up with kit that will save you approx another £30-40K every ten years going foward is probably the best bit of business anyone could make and with an EV thrown in, that could save another £3k every year in fuel (£30-40k every ten years) or selling excess back to the grid for a further profit..
You’ve got it *exactly*. Thanks for your summary!
Awesome! Thanks for all the detailed information. Your system looks impressive. Just a heads up for people in areas at risk of hail (I live in Australia), not all solar panels are equal in terms of durability. A few years back we had a storm with tennis ball sized hail. Many of the cheaper, newer panel brands did not fare so well. Our 20 year old panels came through fine. You might need to shop around.
Great point!
Awesome video. I look forward to the update
Thanks, Matt! The 12 month video will be out in 2-3 weeks!
Excellent presentation! Clear and concise and layed out for a change to renewable energy logically.
Thank you, David! I’m glad you liked the video. As someone new to making TH-cam videos this is encouraging to hear :).
This is well put together video. Very useful, I’ve ordered a similar set up and whilst awaiting installation I’ve been second guessing myself, but this reaffirms my original decision. Thank you.
Glad it helped! When does your installation start? (Hopefully in time for the Spring sunshine?). ☀️
Hi, this is great, we’re based in the IoM too.
Supports our decision for solar, deposit paid and in the queue 😎. We are into our 2nd year of ASHP too, no more oil 👍🏻.
Hello Alan 👋, that’s really good news to hear! Solar PV and battery storage pairs very well with ASHP - and it’s fabulous to not have to pay Manx Utilities when you can generate yourself at home. Payback has fallen from around ten years for solar pv here to around five years… scary, isn’t it?
I'm retired and must start taking RMD from both of our IRAs, since we don't need that money we are going to plow that $$$ in Tesla Solar Panels(12.9 kWh) and two Power Walls and it will get me the required federal tax withholding to get the entire 30% tax credit on year one. We might splurge and go with 3 PWs just to be safe. Given the vulnerability of our power grid, any adversary of the US could shut down our power grid fairly quickly and without warning.
We ordered a Tesla 2 system to complement our existing 4kW PV system. 14 months later, still waiting, we scrapped the order and ended up buying a 13.8kWh GivEnergy battery system costing £8,500 (including EPS system)
We get our grid energy from Octopus Go and fill the battery system to 80% capacity each morning at 7.5p per kWh.
Solar PV provides us with 20%-30% of our daily usage in winter and we expect 80%-90% in the summer.
Solar PV system cost £13,600 and has generated £18,500 FIT payments so far - the excess covered most of the cost of the new battery system.
Battery system has reduced our average daily cost to £1 for the energy from the Grid and £0.49 Standing Charge
That’s wonderful. And people still say Solar and batteries don’t work!
@@DivingDeveloperMy system is not as large (6.4kW solar & 9.5kWh battery), however our daily energy usage is lower, so I’m finding I can run the house and top up the EV on solar and battery alone. Too bad I still have to pay the standing charge, but once I get the go ahead for the Smart Export Guarantee payments that should cover the costs of the standing charge.
Nice one Mike. Hope you're keeping well.
Yes, thank you Steve! I am - hope you are too!
Hi Mike, thanks for the video! Where from have you ordered your Tesla PowerWall? Are those available for ordering officially from Tesla in GB?
Hello Michael, thanks for your comment :)
Tesla Powerwall can only be ordered via a third-party installer; there's a list on the Tesla website: www.tesla.com/en_gb/support/certified-installers-powerwall.
The Powerwalls in the video were ordered through and installed by Manx Solar Electrical - a Tesla-approved installer in the IoM.
Ok thanks! I'm living in Finland - tried to google for 3-rd party installers with no success - maybe should try harder 🙂. Good luck to you with your channel and other projects!
Ah! Try this link for Finland:
www.tesla.com/fi_fi/powerwall
Yep - have visited this already 🙂. This is just saying 'Subscribe to the latest news on the subj' (already did this couple of years ago).
@@micvvv Ah, hopefully Powerwall is generally available for you soon!
Hi, thanks for the video. i have a similar but smaller setup. 8Kw solar (two 4KW arrays, one east facing and one south), plus a single tesla powerwall 2 which is exactly one month old today. I waited 6 months for the powerwall to be delivered and fitted, but boy is it worth the wait. I am with octopus and am awaiting the november bill so that i can see the first half of the month and compare against the second half of the month (ie before and after the install). However from my rough estimates, my on peak cost of electricity is roughly £1 per day, and my off peak costs about £3.00 which includes charging the battery and an EV. We dont have gas or oil and so this is our total energy bill with the exception of logs for heating the house. thankfully my original solar array was fitted 12 years ago and so i get a feed in tariff each year of around £1500 and this increases by 7% per year. This means that due to the extra investment i have made in the new solar array and the battery, that i have moved our bills back to where they were when we first moved into this house, which was that over a year my energy cost me 1300 and my income was 1500 giving me a surplus. I keep looking at a second powerwall as mine does not last the entire day, typipcally running out at around 21.00 leaving us 3.5 hours before cheap rate starts again. The question for me is can i justify the second battery on cost saving alone and i am not sure i can as the 3.5 hour difference is around £1 per day and that is over winter only. During the summer months i expect to be off grid most of the time. in relation to what i wished i had know before hand, my answer is less related to the known element and more towards i wished i had thought of ground mounting my last array rather than having it on the roof. We have 2 acres of land and can easily put more solar on a ground array that tracks the sun. the main benefits are lower cost to fit, easier maintenance to clean and if anything does go wrong, i dont need scaffolding putting up. I am looking at another 4KW in the future and will have it ground mounted. cheers for the video. have subscribed and look forward to watching your update videos so i can compare results.
Thank you for watching and leaving a handy comment; I'm glad you've found solar very useful, and you're the first person I've heard from who also has two arrays! RE: Another Powerwall - it sounds like you've done the calculations, and it wouldn't be a financially helpful thing for you to do. Much better to put that money into more panels (although this will change your battery storage calculations as you may want to export less and store and use more. If I had the clear space to do so, I would look into ground mounted too, and potentially not track - an optimum angle and south pointed would be ideal. You already have an East-facing array which IMO is the most useful of the non-southerly directions as it is ideally placed to soak up the morning's first light. Thank you for subscribing; I also make underwater, technology and business videos but I have planned to make >regular< followups to the solar (and powerwall, and EV, and later - as we move off our LPG gas central heating too). Thank you again!
@@DivingDeveloper thanks Mike. I came across you channel yesterday and watched a few of your videos, the Q&A on EVs which was very good, a day in the life of a developer which I liked as I have a dev team myself. I spotted that device which you turn over to start tracking time which looks fascinating and would love to see a video on that. obviously your solar and power wall videos. I also watched the star link video which was interesting as I also have one. Living in the countryside, my best adsl quote came in at 1mb down and 5mb up. That same figure is still true today so I had no choice but to get starlink which launched just at the right time, ie during the pandemic when I needed to work from home. regarding the extra battery, I have been looking into V2G as I specifically leased a Nissan Leaf for its chademo connection which is bi-directional. I just missed out recently on taking part in another trial which would have given me the hardware to both charge my car as well as discharge the battery into the house during peak times. My thoughts currently are keep looking for the V2G hardware to further develop and buy one of those to turn my car into another battery. In the long term, I may get another power wall depending on my needs. I keep looking at wind turbines as another form of energy micro generation. I live at the top of a hill and we get a lot of wind. Its the one form of weather that we do not benefit from, ie we collect the sun for energy, we also have a rain water harvesting system to collect the rain for our house as well as our garden. The only thing putting me off is the reviews I see on how problematic they can be and the maintenance costs. Others have just said add more solar as at least it is mostly guaranteed and has no moving parts to go wrong. My electric needs will change again this year as we buy the Nissan from the leasing company and I take out a new works lease on a second EV. I am currently thinking of the polestar 2. Once we have that in place (Dec) I will need to look again at our energy usage and storage and see what needs tweaking. The idea is to get as close to self sufficient as possible. I have 16 years before I retire and I want to make our retirement as comfortable and as cost efficient as possible. Thanks again for the videos. John
Thank you, John! Your comments are useful for me - you’d be surprised that very few people give this sort of useful feedback! I’m glad you liked my day in the life! It feels a little premature putting together a video showing my day when I didn’t think that I had anyone in my audience who might find it insightful or entertaining. My plan with this is to take it to the next step and ‘build in public’ something new, perhaps a mobile app.
V2G over CHAdeMO requires a three-phase connection. Great, if you can get it. Especially good if you can find a supply of used or damaged Nissan Leafs. £/kWh these are the cheapest reliable ‘out of the box’ (i.e. no DIY) storage that there is. Robert Llewelyn from the Fully Charged Show has a pre-production V2G unit installed and AFAIK hasn’t made a video about it but you can see it on some of his garage clips.
We’ve looked at wind too - top of a hill helps and so does being on the IOM - we get a *lot* of wind here and it’s predominantly over the darker months. But as you say, maintenance and moving parts makes it an added complexity. We have bats too, so will need an enclosed system as I doubt we’d get permission for a tall vertical turbine. I think it’s a great ‘addon’, a bit like having the two solar inverters - a little added redundancy and ‘security’. -Mike
Great informative video! I’m on the IoM as well. Who installed your PV system?
Thank you so much. Glad you liked the video! Manx Solar Electrical installed our system for us - I think they did a nice tidy job too!
Do you have solar or home batteries - and what do you wish you'd known before installing? Or maybe you're looking to install some home generation yourself for the first time?
Just a suggestion. Probably be best to lower or do away with music in the background so we can hear you and not the music. Music is too loud and unimportant. What you are telling us is important to hear. 3:33
Thank you, I appreciate your feedback. In my latest videos I have removed or significantly reduced the music and also fixed my microphone issues. Like this! th-cam.com/video/4gs9142r5aU/w-d-xo.html&ab_channel=DivingDeveloper
Thank you again,
Mike
@@DivingDeveloper Thanks. What you have to say is the most important part. Thanks again.
The typical house uses ten kwh per 24 hours? Where on earth did you get that number from?
Isle of Man: Future Energy Scenarios (July 2021) - collated usage of all residential annual usage, divided by number of residential properties. Checked with DNO in September 2022.
It’s probably worth saying that my family and I use around ~40-60kWh a day. We’re not typical energy users on our island though.
What I'm confused about is, extra power from my panels is banked with my electric company... So, other than a black out, why would it help to bank it with a powerwall instead?
All things considered if you get the same price for import as export (note: this is extremely unusual in the UK - less so in the US) then yes, financially there is less incentive to invest in home storage.
@@DivingDeveloper can you elaborate on what you mean by same price for import as export? I'm sorry, I'm not following.
@@mikefas5406 Yes no problem.
So you said, “extra power from my panels is banked with my electricity company”.
What this means is - your electricity company pays you for your excess solar.
The rates that electricity companies pay for a unit of solar energy is almost always less than they are willing to sell you a unit of energy from the grid.
If by chance the export price and your import price are the same - I know of one TH-camr in Ohio where this is his case - there’s no financial motivation to have a Tesla Powerwall to store excess solar as you say.
But that isn’t the case for 99%+ of people.
Is there something in particular that you’re looking to understand? What can I cover in a future video that would help?
Electricity isn’t free. It costs a certain amount per unit. In my video I explain the costs associated with our supplier.
Import = purchasing electricity FROM your supplier.
Export = selling electricity TO your supplier.
I hope that helps.
Good morning. When I connect directly to my Powerwall 2 and check the charge it is higher than showing on the Tesla App? Why is this?
Thanks for your comment, good morning!
I’m not an installer so I’m not sure what you’re seeing there. You shouldn’t be able to connect directly to your PW2 (that’s an installers portal) - but if you are, how cool is that?
It could be that the app and PW portal are displaying different values at different times due to lag between the two requests (solar is variable - so too is the PW content).
You also might not be looking at your PW’s?
@@DivingDeveloper Actually there is an option to connect as a customer. Just login to the gateway direct. There is a video on youtube that explains it. Anyway than you for the reply!
Every day is a school day! I didn’t think to connect to the gateway over http/with a web browser. I’ll give that a whirl later :-)
So going solar never pays for itself. Got it.
I’m not sure how you came to that conclusion?
@@DivingDeveloper I mean, he's accounting for a steep rise in energy costs due to inflation to increase the amount of money he could save per year in the future. Not only that, but he still pays hundreds of dollars per month for going on the grid which will also increase with inflation. Tesla's solar warranty doesn't last the 20 year life span of their solar panels whose efficiency degrade over that time which means their cost per month for going on the grid will increase even more over time. He may even have to replace his panels before he pays these first ones off at that rate.
Hi, it’s okay, you can just say, “you” since that chap in the film is me on my channel :)
Thanks for explaining what you meant. Here’s my thoughts on that below.
The solar will eventually pay for itself but in this video I explain that should energy costs increase by some amount (around 30%) that they the ROI breaks even immediately. Should energy prices reduce, the solar will still eventually pay for itself but on a longer term.
I’m not sure why you think I’m using Tesla Solar panels when I explain in the video the exact model of solar panels I’m using and the warranty details - it’s JASolar, a Chinese brand.
Yes efficiency falls over time, but it isn’t a cliff edge. Those who installed solar 10, 20, 30 years ago have examples of the type of degradation to expect - and those are with older less reliable technologies.
I hope this helps, but I do explain this in the video if you watch it to the end.
@@DivingDeveloper Hmmm... I don't know why I thought you had said you were using Tesla either. I may have mistaken your video for someone else's.
Updating, today 2023/1/11, they said the Powerwall doesn’t work well at 0°C but today is 7°C and right now my solar panels are producing over 7kw but Powerwall is charging at only 1.2kw!
Powerwall is a waste of money!
It sounds like Powerwall is using some of the incoming DC power from your solar panels to warm the cells. This is by design. I think your Powerwalls are outside? Your installer can diagnose if this is the case.
@@DivingDeveloper In my Tesla app I can see it was charging at 1.2kw but the remaining electricity was going out to the grid! It was not being used to heat itself. Or it’s only my Powerwall that is not working properly. I already contacted the Tesla support, they came here but didn’t solve the problem. They only told me to self charge my Powerwall in the morning (before the sunrise) using time based mode (paying the grid electricity) to heat the battery before the panels start to work. That means I’m paying to heat the battery or it doesn’t work well. But even doing this, yesterday it was cloudy in the morning so that 30 minutes self charging didn’t work and when the sun completely appeared around 11:00, the Powerwall was not heated enough to capture all the electricity produced by the panels. All the extra electricity was wasted to the grid!
In normal condition it should be charged to 100% but yesterday it was only charged 50%!
@@Firegarden999 Thank you for going into more detail. I had the same thing once I switched modes from 'Self-Powered' to 'Time-Based Control' in the Tesla app. It takes the Powerwall some time (I think it was at least a week) to learn and optimise itself for our routine. It was nearly perfect then ... except for the odd day when it tops up overnight too little or doesn't leave sufficient space for the morning's surplus solar.
As one of the input indicators that it uses to learn is the export time/quantity and we have no export, there's no CT clamp by the export meter to feed back to the powerwall. This means it doesn't know when it's being too conservative...
Hope that makes sense? Definitely share your experience with your installer, it might be that they need to look into this if it isn't an AI/learning issue.
Please cut the music volume by 60% I came here to learn not to Dance :p
:) Yes, absolutely! Lesson learned haha
Solar energy company paying back a "fair" price for energy we create. Key word being, "fair." I'm in California and fair plays no part here. 😂
Hello, thanks for your comment! What’s the FIT situation like in sunny ☀️ California?
I was having a hard time hearing your voice. The music is a bit too loud
Thanks for letting me know. I have uploaded (English) subtitles to help with this!
Music is not necessary.
Message received! I've removed or significantly reduced the use of background music in my recent videos! th-cam.com/video/4gs9142r5aU/w-d-xo.html&ab_channel=DivingDeveloper
turn off the music
It’s possible to do this - I’ve uploaded subtitles to the video. You can mute the video and follow along the subtitles. Hope this helps -Mike
PW. Howmuch
Hello! I explain this in the video. Look around the 6 minute mark.