Benguela Posted September 17, 2022 Share Posted September 17, 2022 I'm a solar pv owner (6.6 kW of panels, 5kW inverter) and it sticks in my craw that I'm purchasing electricity at 30p/kWh and exporting excess energy to the grid at 4p/kWh (Octopus SEG tariff). I self-consume as much as I can by shifting use and charging my EV from solar and I'm also well aware that I can increase my self-consumption by getting a hot water diverter (£ 400) or a EV charger diverter (£800) or a home storage battery (£how-long-is-a-piece-of-string). But that requires me to spend more capital to increase my self-consumption rate. Why can't I just sell my electricity to my neighbour for 20p/kWh when I've got a bit of excess. Sun is shining, I plug in my EV and I tell my neighbour to quickly switch on her washing machine, to use up all my excess energy that I sell to her at a discount. Everyone is a winner: me, my neighbour and also the grid (because they don't have to generate energy using gas to allow my neighbour to do her washing... flattening the curve). It doesn't even have to be my direct neighbour... it can be anyone on the local grid who just happens to be switching on their washing machine right then. The more I think about it, it's not that I'm a mug who doesn't self-consume his excess electricity. It's that the market is set up wrong: for every kWh of electricity I produce, someone else pays 30p. And who grabs that money? The power distributor. They bill someone else 30p for electricity that I produce at 4p. And they don't add any extra value to that electricity... it's the same electricity, so their 26p profit comes not from some magic sauce they add to my electricity, it just comes from their position in the market vis a vis me. What's the answer for a more 'market-based' solution (rather than a home-engineering solution)? Should all us PV owners fight for something like the Local Electricity Bill? Info here: https://powerforpeople.org.uk/ Or is there any chance that the SEG market will ever begin to pay us more decent rates? Link to comment Share on other sites More sharing options...
SteamyTea Posted September 17, 2022 Share Posted September 17, 2022 29 minutes ago, Benguela said: Why can't I just sell my electricity to my neighbour for 20p/kWh when I've got a bit of excess. How much are you willing to pay to use the DNOs infrastructure? How much time are you willing to spend administering the flows to your neighbour/s? How much are you willing to pay to enforce non payment of bills? How would you feel if you set up all the above, then your neighbour/s decided to not use your power? Are you willing to pay your taxes on the income? £40/MWh is a pretty good price in my opinion considering you are doing it for next to nothing (read an export meter every now and again and submit readings). If you really want to sell power to customers, via the NG, then become a proper energy supplier and run it as a business. They seem easy enough to set up. Here is a list to show how easy it is: Energy Supplier Date Supplier Went Bust No. of Customers New Supplier Whoop Energy 18/02/2022 262 Yu Energy Xcel Power Ltd 18/02/2022 274 Yu Energy Together Energy (inc Bristol Energy) 18/01/2022 176,000 British Gas Zog Energy 01/12/2021 11,700 EDF Energy Orbit Energy 25/11/2021 65,000 Scottish Power Entice Energy 25/11/2021 5,400 Scottish Power Bulb Energy 22/11/2021 1,700,000 Special Administration Process Social Energy Supply 16/11/2021 5,500 British Gas Neon Reef 16/11/2021 30,000 British Gas CNG Energy 04/11/2021 41,000 (Business) Pozitive Energy Zebra Power 02/11/2021 14,800 British Gas Omni Energy Ltd 02/11/2021 6,000 Utilita Ampoweruk Ltd 02/11/2021 600 + 2000 (Business) Yu Energy MA Energy 02/11/2021 300 (Business) SmartestEnergy Bluegreen Energy 02/11/2021 5,900 British Gas GOTO Energy 18/10/2021 22,000 Shell Energy Daligas 14/10/2021 9,000 Shell Energy Pure Planet 13/10/2021 235,000 Shell Energy Colorado Energy 13/10/2021 15,000 Shell Energy Igloo Energy 29/09/2021 179,000 E.ON Symbio Energy 29/09/2021 48,000 E.ON ENSTROGA 29/09/2021 6,000 E.ON Avro Energy 22/09/2021 580,000 Octopus Energy Green 22/09/2021 255,000 Shell Energy Utility Point 14/09/2021 220,000 EDF Energy People's Energy 14/09/2021 350,000 British Gas PFP Energy 07/09/2021 80,000 British Gas Money Plus Energy Ltd 07/09/2021 9,000 British Gas Hub Energy 09/08/2021 6,000 E.ON Green Network Energy 27/01/2021 360,000 EDF Energy Simplicity Energy 27/01/2021 50,000 British Gas Yorkshire Energy 02/12/2020 74,000 Scottish Power Tonik Energy 06/10/2020 130,000 Scottish Power Go Effortless Energy 03/09/2020 2,500 Octopus Energy GnERGY 18/03/2020 9,000 Bulb Energy Breeze Energy 18/12/2019 18,000 British Gas Toto Energy 18/12/2019 134,000 EDF Energy Uttily Energy 15/10/2019 280 (Business) Total Gas and Power Eversmart Energy 06/09/2019 29,000 Utilita Solarplicity 13/08/2019 7,500 SSE Cardiff Energy Supply 09/08/2019 800 SSE Brilliant Energy 11/03/2019 17,000 SSE Our Power 25/01/2019 31,000 Utilita Economy Energy 08/01/2019 235,000 Ovo Energy One Select 10/12/2018 36,000 Together Energy Spark Energy 10/12/2018 290,000 Ovo Energy Extra Energy 21/11/2018 108,000 Scottish Power Usio Energy 15/10/2018 7,000 First Utility Gen4U 13/09/2018 500 Octopus Energy Iresa 13/09/2018 90,000 Octopus Energy National Gas and Power Limited 25/07/2018 22,000 Hudson Energy Future Energy 13/09/2018 170,000 Green Star Energy 1 Link to comment Share on other sites More sharing options...
Benguela Posted September 17, 2022 Author Share Posted September 17, 2022 42 minutes ago, SteamyTea said: If you really want to sell power to customers, via the NG, then become a proper energy supplier and run it as a business. They seem easy enough to set up. Not a totally fair comment... The easiest way to become a proper energy supplier is the Ofgem Licence Lite Route and that isn't pain free https://www.ofgem.gov.uk/sites/default/files/docs/2015/04/482_an_introduction_to_licence_lite_factsheet_web_0.pdf ... for one thing, you need to partner with a national energy supplier. The point of my hypothetical above wasn't to say I personally want to be the Gordon Gecko of energy markets... it was genuinely to check what people think about the Local Electricity Bill. For my part, I hope it could allow PV owners to club together as cooperatives so that, together, our coop could become a local electricity supplier giving us a little more bidding power in the market. Link to comment Share on other sites More sharing options...
Radian Posted September 17, 2022 Share Posted September 17, 2022 5 minutes ago, Benguela said: Not a totally fair comment... @SteamyTea thinks energy is still good value for money. This is debatable but what is less subjective is the profiteering around the SEG. The vast profits being made by the generators through other means hardly needs to be bolstered by such asymmetric pricing. Link to comment Share on other sites More sharing options...
SteamyTea Posted September 17, 2022 Share Posted September 17, 2022 20 minutes ago, Radian said: @SteamyTea thinks energy is still good value for money It is, but I still don't throw it out the window. 21 minutes ago, Radian said: This is debatable but what is less subjective is the profiteering around the SEG Do you have some numbers to compare? I have no idea how many GWh are paid for at 4p/kWh, or how much is paid for mainstream tradional generation by the energy retailers. Traditionally it was around £50/MWh. Trading houses made a good markup on relatively small quantities of power, so maybe they are the people to ask about the best way to set this up. Link to comment Share on other sites More sharing options...
ProDave Posted September 17, 2022 Share Posted September 17, 2022 This just shows what I have always thought, there is little point going above 4kW of panels with a 3.68kW inverter unless you have battery storage. Up to 3.68kW it is easy to self use almost all you generate as long as you have a hot water tank and a PV diverter. Beyond that it becomes very hard to self use it all. You then have to do serious sums, the cost of batteries vs the extra that will allow you to self use. 2 Link to comment Share on other sites More sharing options...
Radian Posted September 17, 2022 Share Posted September 17, 2022 1 hour ago, SteamyTea said: Do you have some numbers to compare? I have no idea how many GWh are paid for at 4p/kWh, or how much is paid for mainstream tradional generation by the energy retailers. No numbers and it would be chicken feed compared to overall supply but I feel we should be able to make objective statements about the import/export ratio of 8:1 At a very rough guestimate of 1 million rooftops generating 2750kWh/a of which roughly one third is sent into the grid (i.e. 1mWh/a) could equate to 1,000,000 units of electricity redistributed to consumers and charged for at a profit of 26p/unit or £260,000,000 - a tidy profit for letting the infrastructure that already had to be in place carry a little less generation from source - by courtesy of the domestic Solar PV system purchasers. Link to comment Share on other sites More sharing options...
Benguela Posted September 17, 2022 Author Share Posted September 17, 2022 1 hour ago, SteamyTea said: Do you have some numbers to compare? I have no idea how many GWh are paid for at 4p/kWh, or how much is paid for mainstream tradional generation by the energy retailers. We can start to guestimate by doing a quick google. If I get anything wrong, feel free to correct, I'm just doing this on a paper napkin. In 2020 there were 970,000 homes with solar panels in the UK (https://www.theecoexperts.co.uk/solar-panels/popularity-of-solar-power#:~:text=using solar panels.-,Residential,homes with solar panel installations.) and let's say the average installation is 4KW, producing maybe 3,000 KWh per year. So home solar produces about 2,910GWh? How much of that is exported... maybe a third or half? Of those 970,000 homes, 80,000 receive FIT. ( https://www.which.co.uk/reviews/feed-in-tariffs/article/feed-in-tariffs/what-was-the-feed-in-tariff-aAsa36S95iJy) People who got in at the beginning of FIT got a princely 50-something pence per kWh exported for 20-something years, but at the tail end of FIT it dropped to about 5p, I think. (In fairness, the capital outlay was considerable at the beginning.) Take away point: if there really are 970k homes with solar panels in the UK, only about 80k homes probably get more than 4 or 5p per kWh exported. The majority of us get the princely sum of £40/MWh that Steamy Tea quoted above. The day ahead wholesale price for electricity yesterday was £290/MWh. https://marketwatch.zenergi.co.uk/price/16-09-2022/ So collectively we are producing quite a bit and we are also selling our leccie to the grid quite cheap. Or, to put it another way, the market currently gives us few other options except to take a low price for it. Link to comment Share on other sites More sharing options...
ProDave Posted September 17, 2022 Share Posted September 17, 2022 13 minutes ago, Benguela said: Of those 970,000 homes, 80,000 receive FIT. That is an astonishing statistic. So 890,000 homes with solar PV do not receive FIT. Are you really saying most of those were installed before or after the end of the FIT scheme? The whole point of the FIT scheme was to kick start solar PV installs as before it only a few eco wariers were doing so, and anecdotal evidence is most of the Solar PV installers quit after the FIT ended as there were so few bothering without any payment scheme. It is only in the last couple of years with rising energy costs that it is picking up again. Link to comment Share on other sites More sharing options...
JohnMo Posted September 17, 2022 Share Posted September 17, 2022 Something not right with one website or the others numbers. DIY installs are few and far between, those sites are indicating they are could be the norm, which isn't that believable. Link to comment Share on other sites More sharing options...
JohnMo Posted September 17, 2022 Share Posted September 17, 2022 4 hours ago, Benguela said: I'm a solar pv owner (6.6 kW of panels, 5kW inverter) and it sticks in my craw that I'm purchasing electricity at 30p/kWh and exporting excess energy to the grid at 4p/kWh (Octopus SEG tariff). We know the game before we enter it. Your lucky I and others on here, get zero for export. Buy a diverter, why pay for summer hot water. Link to comment Share on other sites More sharing options...
Marvin Posted September 17, 2022 Share Posted September 17, 2022 5 hours ago, Benguela said: I'm a solar pv owner (6.6 kW of panels, 5kW inverter) and it sticks in my craw that I'm purchasing electricity at 30p/kWh and exporting excess energy to the grid at 4p/kWh (Octopus SEG tariff). I self-consume as much as I can by shifting use and charging my EV from solar and I'm also well aware that I can increase my self-consumption by getting a hot water diverter (£ 400) or a EV charger diverter (£800) or a home storage battery (£how-long-is-a-piece-of-string). But that requires me to spend more capital to increase my self-consumption rate. Why can't I just sell my electricity to my neighbour for 20p/kWh when I've got a bit of excess. Sun is shining, I plug in my EV and I tell my neighbour to quickly switch on her washing machine, to use up all my excess energy that I sell to her at a discount. Everyone is a winner: me, my neighbour and also the grid (because they don't have to generate energy using gas to allow my neighbour to do her washing... flattening the curve). It doesn't even have to be my direct neighbour... it can be anyone on the local grid who just happens to be switching on their washing machine right then. The more I think about it, it's not that I'm a mug who doesn't self-consume his excess electricity. It's that the market is set up wrong: for every kWh of electricity I produce, someone else pays 30p. And who grabs that money? The power distributor. They bill someone else 30p for electricity that I produce at 4p. And they don't add any extra value to that electricity... it's the same electricity, so their 26p profit comes not from some magic sauce they add to my electricity, it just comes from their position in the market vis a vis me. What's the answer for a more 'market-based' solution (rather than a home-engineering solution)? Should all us PV owners fight for something like the Local Electricity Bill? Info here: https://powerforpeople.org.uk/ Or is there any chance that the SEG market will ever begin to pay us more decent rates? Hi @Benguela Nice idea. I am in favour of local power production and storage. However, no chance. Too many boring reasons why it won't work. Better off using up as much as you can, and giving away as little as possible. Good luck Marvin Link to comment Share on other sites More sharing options...
Radian Posted September 17, 2022 Share Posted September 17, 2022 1 hour ago, Benguela said: We can start to guestimate by doing a quick google. If I get anything wrong, feel free to correct, I'm just doing this on a paper napkin. In 2020 there were 970,000 homes with solar panels in the UK (https://www.theecoexperts.co.uk/solar-panels/popularity-of-solar-power#:~:text=using solar panels.-,Residential,homes with solar panel installations.) and let's say the average installation is 4KW, producing maybe 3,000 KWh per year. So home solar produces about 2,910GWh? How much of that is exported... maybe a third or half? We must both have been scribbling away and posted almost at the same time! My guestimate aligns quite well with yours, so given the additional installs since 2020 (they've been at an all time high since the spring of this year) I'm confident that there's a good million sources of gratis units winging their way through peoples meters. And being charged for at retail, not wholesale prices. 1 Link to comment Share on other sites More sharing options...
Benguela Posted September 17, 2022 Author Share Posted September 17, 2022 1 hour ago, ProDave said: That is an astonishing statistic. So 890,000 homes with solar PV do not receive FIT. Are you really saying most of those were installed before or after the end of the FIT scheme? The whole point of the FIT scheme was to kick start solar PV installs as before it only a few eco wariers were doing so, and anecdotal evidence is most of the Solar PV installers quit after the FIT ended as there were so few bothering without any payment scheme. It is only in the last couple of years with rising energy costs that it is picking up again. Only doing some quick googling there, ProDave, and more than happy to acknowledge that the question 'how many UK homes with Solar PV do and do not get FIT?' is still open. But there's enough to be an interesting question, right? Link to comment Share on other sites More sharing options...
patp Posted September 17, 2022 Share Posted September 17, 2022 What about offering to charge electric cars for the the local community? What about offering to do washing/drying or filling your oven with other people's casseroles? Rechargeable garden tools could also be charged. Then there could be a community large battery storage unit for the benefit of local residents? I know, I know I have been visiting cloud cuckoo land again! 1 Link to comment Share on other sites More sharing options...
Benguela Posted September 17, 2022 Author Share Posted September 17, 2022 1 hour ago, JohnMo said: We know the game before we enter it. Your lucky I and others on here, get zero for export. Buy a diverter, why pay for summer hot water. Sure! We all know the game, we entered it and I'm not being all sour grapes. I like my system. It's just an interesting phenomenon: us Solar PV producers do our local grids a favour by magically dumping energy into it. No-one contracts us to do it (we're not contracted suppliers) and no-one bothers to pay us... much. So, seeing as there is about a million of us, isn't it rational to try to see if we can get a better deal. That's all. It's not Peterloo or anything. 1 Link to comment Share on other sites More sharing options...
Benguela Posted September 17, 2022 Author Share Posted September 17, 2022 But I found there are 3 minutes ago, patp said: What about offering to charge electric cars for the the local community? What about offering to do washing/drying or filling your oven with other people's casseroles? Rechargeable garden tools could also be charged. Then there could be a community large battery storage unit for the benefit of local residents? I know, I know I have been visiting cloud cuckoo land again! There is actually a form of this already in Wales. See here https://energylocal.org.uk/ I don't totally understand how it works, but it looks like electricity users and small generators club together and then pool their production and use during half hour periods. Going to see if I can find out more and then maybe we can get one where I am. Link to comment Share on other sites More sharing options...
patp Posted September 17, 2022 Share Posted September 17, 2022 1 minute ago, Benguela said: But I found there are There is actually a form of this already in Wales. See here https://energylocal.org.uk/ I don't totally understand how it works, but it looks like electricity users and small generators club together and then pool their production and use during half hour periods. Going to see if I can find out more and then maybe we can get one where I am. Ah I thought I had seen/heard of something before. Wales seems likely as bartering is still fairly common among the smallholding community. Link to comment Share on other sites More sharing options...
SteamyTea Posted September 17, 2022 Share Posted September 17, 2022 (edited) Right You can get the data here. A few codes to look up, but it is geospatial data so you can make a good estimate to what is generated, and as there are commissioning dates, you can work out the FiT/SEG rates. https://www.ofgem.gov.uk/sites/default/files/2022-05/Feed-in Tariff Installation Report May 2022 Part 1.xlsx Too late at night for me to look at it, seems this surprise bank holiday caught us out tonight, and our supplier who did not deliver until after opening time. Right a quick, look I cannot leave data alone. PV systems 4 kW and under (mean 3.96 kW), 268,800 between commissioned between 16/07/2009 and 20/03/2019. Those are MCS registered systems and do not include off grid systems. So about 806,400 kWp installed. 0.81 GWp. Edited September 17, 2022 by SteamyTea Link to comment Share on other sites More sharing options...
Benguela Posted September 18, 2022 Author Share Posted September 18, 2022 10 hours ago, SteamyTea said: PV systems 4 kW and under (mean 3.96 kW), 268,800 between commissioned between 16/07/2009 and 20/03/2019. I yield to your research, Steamy Tea. Of the roughly 960k home solar installations in the UK, 268k look like they are entitled to FIT (27%) and my numbers above were clearly wrong. We can see how much people got paid through FIT at the table here https://www.ofgem.gov.uk/publications/feed-tariff-fit-tariff-table-1-april-2022 Column F shows all the different FIT rates between 2010 and 2019 and the tariffs were much higher in the earlier years and dropped as the years went by. In 2010 the highest tariff I see being offered for PV was "60.23". In 2019, the lowest tariff I see being offered for PV was "0.05". But is that figure in pounds or pence? I can't see directly. Either some lucky sod was being given £60 per KWh in 2010, or some poor mug was being stiffed with 0.05p per KWh in 2019. Or they changed from pence to pounds halfway through their own spreadsheet. 🤣 It doesn't matter as I'm just giving a rough picture. Still, my point is that not everyone who is on FIT is getting a great deal anyway and about 73% of PV owners having nothing better than SEG. I'm speculating, but I think the reason for that is that us PV owners are not treated as 'suppliers' on the grid. We are not being contracted to produce power (like the nuclear or gas or even big renewables suppliers). We just dump electricity on our local grids intermittently and are probably regarded as a form of background noise. We get a little pat on the head in form of SEG, but the amount of SEG isn't determined by market forces, the law says SEG must be >0p, so the electricity companies give us the least they can get away with and then the wholesale market just says 'thanks very much' and throttles down the gas peaker plants when the sun is shining. Anyone who understands the electricity market better, please correct me, but it looks like there is maybe 1,000GWh of electricity swirling around per year that the market doesn't pay for, or as Radian puts it above £260million. (Fag packet numbers, totally ready to be corrected.) Link to comment Share on other sites More sharing options...
ProDave Posted September 18, 2022 Share Posted September 18, 2022 6 minutes ago, Benguela said: Column F shows all the different FIT rates between 2010 and 2019 and the tariffs were much higher in the earlier years and dropped as the years went by. In 2010 the highest tariff I see being offered for PV was "60.23". In 2019, the lowest tariff I see being offered for PV was "0.05". But is that figure in pounds or pence? I can't see directly. Either some lucky sod was being given £60 per KWh in 2010, or some poor mug was being stiffed with 0.05p per KWh in 2019. Or they changed from pence to pounds halfway through their own spreadsheet. 🤣 That is the figure in pence per kWh at todays rates. All of those would have been lower when first paid and have been index linked since. I am still receiving the FIT at 60.23p per kWh for our old house. Ours was installed in a rush in January 2011 to meet the March 2011 deadline. The original rate was going to be lowered sooner but a court case ensued on the basis they had not given enough notice, and there was a bit of a rush right at the end when the court ruled that notice had to be given hence the March deadline. And that was a 25 year contract. That table shows the FIT rates have not kept up with energy price inflation, only general inflation. When first paid, that original FIT rate was about 3 times the standard electricity unit rate. After October when the standard rate goes up to 35p per kWh even that higher FIT rate will only be paying 1.7 times the EPG capped rate. Link to comment Share on other sites More sharing options...
SteamyTea Posted September 18, 2022 Share Posted September 18, 2022 (edited) 1 hour ago, ProDave said: When first paid, that original FIT rate was about 3 times the standard electricity unit rate. After October when the standard rate goes up to 35p per kWh even that higher FIT rate will only be paying 1.7 times the EPG As mentioned earlier, the FiT was to encourage business growth in the sector, not to subsidise individuals earning/utility bills, the latter was an unseen consequence, like roof 'to rent' was. Prior to the FiTs there were some grants, our @DamonHD had some fitted under the scheme I think. Many, pre FiT, early adopters would have been happy with net metering, i.e. sell at same price as you buy. This, on the face of it seems reasonable, but at the time, the lack of smart meters made it impractical. What should really have happened is that the FiTs should have been at a much lower rate, and not tax free earnings. If the rate had been about 12 to 15p/kWh, index linked, people would not be having this debate now. There is also a problem in that the current high prices have a specific cause, which has rippled though the economy, take away the cause i.e. Putin, and prices will get back to normal. This creates the problem on what to do now, but I would not be trying to set up an independent trading system to trade in home grown energy. if such a system did exist, and paid say 30p/kWh, I would plug a diesel generator in and milk it for all it is worth. What the Spanish did. Edited September 18, 2022 by SteamyTea Link to comment Share on other sites More sharing options...
Radian Posted September 18, 2022 Share Posted September 18, 2022 14 minutes ago, SteamyTea said: if such a system did exist, and paid say 30p/kWh, I would plug a diesel generator in and milk it for all it is worth. The practicalities are not insurmountable, just find neighbour(s) on the same phase (inject a 120kHz signal e.g. X10 to confirm) then haul some SWA cable over the fence and slap a din rail meter on it at each end. A Grid tied inverter will then run as many houses sharing the same phase as though they were one. 😁 Link to comment Share on other sites More sharing options...
SteamyTea Posted September 18, 2022 Share Posted September 18, 2022 4 minutes ago, Radian said: The practicalities are not insurmountable, just find neighbour(s) on the same phase All my neighbours are on drugs, except the Romanians, they are alright. Link to comment Share on other sites More sharing options...
joth Posted September 18, 2022 Share Posted September 18, 2022 On 17/09/2022 at 13:42, Benguela said: exporting excess energy to the grid at 4p/kWh (Octopus SEG tariff). That doesn't sound right. Octopus were paying me 5p/unit when I signed up in 2020 and recently put it up to 7.5p https://solarenergyuk.org/resource/smart-export-guarantee/?cn-reloaded=1 Still not great, but it's almost double what you're quoting Link to comment Share on other sites More sharing options...
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