DIY Solar Project 2023, worth it in the UK? 

Be nice to see a year down the line update, great easy video.👌

Great video, really interesting to see how much you can do for a DIY install. Would be really interesting to revisit your system after a couple of months to look at the pros and cons, what you would do differently/ next and what the ROI is looking like.

Yours is a similar journey to the one I've been on - before things escalated. The SunSynk Hybrid inverter from City Plumbing is another route to go if you have adequate start up voltage. This future proofs the addition of a battery. I now have a spare Solax inverter which I need to get rid of. The Sunsynk is quite feature rich and the 3.6 version is pretty handy insofar as you can have 7kW of solar panels but is still G98 compliant in terms of grid connection. Looking at the legs on your frames on the flat roof, I'd probably be wanting to put some sort of spreader board under the legs to protect the roof. I'm now looking at adding a fogstar battery (and selling my SunSynk battery) which has been mentioned in another comment.

You can buy Tuya MCB with energy metering to have your own monitoring system.

One of the clearest and most concise videos on solar that I've watched. Thank you!

A really informative video on a tidy and sensible install thank you for sharing your project. I initially went for a off grid system with Pylontech batteries but got frustrated over the G99 approval as my inverter was bigger than 3.8 for the G98. I removed all the Pylontech stuff and Growatt inverter and paid a local company to install a Solax system with a 5.8 KW battery. They ‘ adopted ‘ my solar panel install and gave me the MCS certification. I didn’t bother with a meter for export as I also had a zappy charger installed for a future second hand electric car which will take any excess and since may whe. I had my system installed it’s been great getting upto 800kw of generation to date …. My target is 1500 kw for the year ! I’d love a video on HA as that is my next hurdle to jump Subbed thanks again.

Bimble Solar are the go to folk for all things solar. Cheap and good quality.

Good video, I've got 4.6kw of panels spread across two roofs main house and flat roof extension with a 4kw solax inverter AC coupled to a victron battery inverter with 9.6kwh of batteries. Other considerations : if your panels are more than 20cm above the main plane of the roof you will most likely need planning permission, it would be a really good idea to install a DC isolator before your inverter (in case anything goes wrong with the panels for disconnection purposes) and finally when you grid tie you need to apply for a G98 (16amps per phase) or G99 (for ESS or bigger systems above 50kw) EREC as you're feeding into the grid. The main consideration is that your installation is safe and isolates when the power is cut. Thanks for the video I especially liked the home assistant bits. Only just saw your replies to other posts about your G98 but I'd still recommend the DC isolator and have a look at your local planning permissions to make sure it's all good.

What you’ll find is that you may hit the 2k limit on your inverter even though your panels are rated for about 1.6k. The rating on the panels is the same across all of them, so specific temperature and light. I found with my 4.86kWh system installed in January is at one point in April it the inverter hit 6k (only achievable as was sending power via DC to batteries as well as AC to the house/export) - this was because it was a bright clear day, sun was at its highest for the day which was right for the panel angle and the temperature wasn’t high … ideal conditions as was about 20% above the panel rating. As the weather got better the high production point dropped likely because of the temperature of the panels being high - currently in September after the quote poor July/August compared to May/June I’m seeing 4.2kWh at its peak on a clear day when the DC route is there to send excess (batteries still charging). During the good months I slowed down the battery charge rate to prevent clipping so that there was still charge going to the DC batteries at the peak production time during the day to maximise export which can add up to several kWh/day extra at 15p/kWh in the long daylight months.

Excellent video, described in simple terms. I'm thinking of doing the same now

Been looking for a good DIY video on this for a while now and done by someone who know's what they are talking about - Fantastic!

Apparently you shouldn't install a DC isolator. I think Efixx have done a video on that.

I must admit, I missed the part where you told us if it was worth it, i.e. what you saved in a full year vs. what you explained you had spent. Could you recap how much power your "1600w" array of panels actually delivered in the UK climate ? thanks

Superb content and presentation; very informative.

What a brilliant video. Food for thought indeed and much cheaper UK hardware prices than I anticipated. Thanks very much!

City plumbing does not allow solar items in their 15% off for first orders, it is clearly stated in their terms and conditions so if you got the discount well done...but it was a mistake. Besides that great instructional video. Thanks

Nice video, subscribed! Do you have any info/tips about submitting paperwork to the DNO ?

I followed up by asking, “Can you tell me the amount of solar panels needed if I placed all 9 panels on an average pitched roof facing about 100 degrees, based on North being 0 degrees?” It replied, “To determine the optimal number of solar panels you would need based on your specific roof orientation and electricity consumption (3,500 kWh per year), we should consider a few important factors, including the efficiency of your solar panels, the pitch of your roof, and the overall solar potential of your specific location. ### Factors to Consider: 1. **Orientation and Angle**: - In the UK, south-facing (180 degrees) is typically the ideal orientation for solar panels, as it receives the most sunlight throughout the day. However, an orientation of 100 degrees (which is slightly east of southeast) can still be effective, though it may lead to slightly lower energy production compared to a south-facing installation. 2. **Estimated Solar Production**: - Solar panels produce less energy when not facing directly south. The output can be estimated using the orientation correction factor. A rough estimate suggests that an east-facing orientation might reduce solar panel efficiency by about 10-15% compared to a south-facing orientation. ### Calculation: 1. **Daily Electricity Use**: As calculated earlier, your daily usage is approximately **9.59 kWh/day**. 2. **Adjusted Daily Output for Orientation**: If we assume a 10% reduction in panel output due to the 100-degree orientation: - The output of a **410W** panel in optimal conditions (previously calculated as approximately **1.146 kWh/day**) would be reduced: \[ \text{Adjusted daily output} = 1.146 \text{ kWh} \times (1 - 0.10) \approx 1.031 \text{ kWh/day} \] 3. **Number of Panels Needed**: You can now calculate the number of panels needed to cover your daily electricity use: \[ \text{Number of panels} = \frac{9.59 \text{ kWh/day}}{1.031 \text{ kWh/panel}} \approx 9.3 \] Since you generally cannot install a fraction of a panel, you would need to round up to **10 panels** to be self-sufficient in your energy usage. ### Conclusion: In summary, based on a roof orientation of 100 degrees and a slight decrease in efficiency, you would need **10 solar panels rated at 410W** to cover an electricity usage of 3,500 kWh per year. This ensures you account for the reduced output due to the orientation while still achieving self-sufficiency. As always, it’s wise to consult with a solar professional who can assess site-specific conditions and provide a tailored solution.” So I just needed 1 extra❤

The GivEnergy and Tesla Powerwall systems are also predominantly grid tied but can work as off grid systems in the event of a power cut.

Nice job mate

What notification to dno is required?

Hi Kev, Great informative video, I have been on the City plumbing website and the 15% discount does not apply to certain items including Solar PV, How did you manage to get the discount? Thanks.

may cause flat roof leaks in the long run

Very nice video but you did not give the ROI figures based on cost reductions from the grid plus sell back to the grid. More importantly, you did not discuss permitted development/ planning permission issues and the related costs of those. You need planning permission for panels on a flat roof plus, possibly, building regs or MCS certification could apply. OTOH it is permitted development for a pitched roof but there is a still a cost to show this is a legal development (especially for selling the house and possibly building insurance) . If I am wrong about any this, then still this need to be discussed and was not. This could be expensively misleading to others watching this.

Does your power supplier install a bi-directional meter?

I got 20 solar panels and 2 batteries 10.6kwh (1 = 5.3kwh) cost me 10.800 Euros , i would say well worth it , no bill , and in 6 months i have made 967 euroes , good luck to all

How long did it take to payback?

Noooo you've done it all wrong! You should have paid £6500 for some randoms to throw some panels up there, do a crap job, then throw an MCS certificate at you and run off to install 2 more systems by the end of the day. 🤣🤣 Great job though, I did roughly the same with my modest 500w system, although I got my panels 2nd hand for cheap. In the 4 years it was up, it made about 1.5MW. Now I've got it connected to my battery inverter system just to add free power to it.

inverter outdoor ?? its a bad idea

Have a similar system but dump excess power into my hot water tank immersion heater using a Solic200 box. This automatically detects if I'm exporting excess power and diverts it to the immersion heater. Works a treat!

got a 2024 update?? how much did this end up saving you?? what is the price difference between the now and before.

Great video - curious to know why you mounted the inverter on the outside of the house rather than in the loft?

1600w panels, EcoFlow delta pro + 1 extra battery = 7KWh storage. Panels mounted in garden with adjustable angle for winter/summer optimisation. Running through independent mains system to household wiring. Currently runs fridge, freezers, microwave, washing & dryer machines. Ready for blackouts with lighting and tv ready to switch over.

Hi did you or did the electrician fill out the form I think its call G96 to the power company to say you had solar going back to the grid? As I would like to build my own system like you 🙂 I have done an off grid system and works great

Great install. A friend of mine recently installed his panels on his roof using a scaffold tower and a safety rope. Afterwards, he admitted he would never do it again due to risk of falling and pain to knees and wrists etc. Great project update and good detail on your decisions. I look forward to a 12-month review of your system and your views at that time, including would you do anything different. Cheers.

In summer you have light and sunshine in abundance. It doesn't matter if you don't get all the sun. In spring and autumn you are happy to get as much sun as possible. In winter it's hardly worth it and you wait for spring. So it is worth aiming for spring and autumn. So set the angle to 38 to 42°

That inverter is in a really bad location for maintenance, DC isolation when the panels are live looks impossible, having only built in isolation is frowned upon by the fire brigade, maybe your house insurer too, also the inverter being baked by the sun will significantly shorten its life. An internal inverter install, even in the loft would be infinitely preferable.

Very inspirational, I was pleasantly surprised how little it cost. I never thought of putting solar on my two ground floor extension roofs - no idea why, it seems obvious now. Looking at mine now, my main roof is hipped so I think the lower roofs may actually have more surface area. I dont think you actually answered your question(!) is it "worth it in the UK"?! You look and sound pretty pleased, any idea what the pounds and pence looks like yet or is it too early?

Seems like the inverter /dongle would have been better weather-protected in the loft space , even if its IP rated, I'd still prefer it out of the weather... Great vid, thanks for the info, very inspirational !! 👏🙂 😎👍☘🍻

worth pointing out that 5kWh of LFP battery storage can be had for about half that price from amazon!

Great video :) One quick question: When you are exporting power back to the grid, does your meter then run backwards ? i.e. will that further reduce your bill or are those watts given back for free ? Thanks

How did you go about MCS certification, etc? I’m thinking of a DIY installation for an outbuilding initially (off grid), but would like to eventually tie it into the house as well.

Great video. You should look at hybrid micro inverters if not already. How did you notify DNO and get G98 certification?

Please please, pretty please with a cherry on top, can you stop saying "KiloWatt per hour".

The city plumbing 15% discount on first orders specifically excludes solar equipment. Still free delivery, and those 405 panels are now £93 Inc vat.

Great video although I winced at the lack of shoes lol, lots of ppl with large back gardens could put in systems like this although if you have kids I would make ground floor installs parallel to keep the voltages down, you got a good price on that timber as well 👍 subbed, please let us know how the roi is looking.

don't say kw PER hour; the NAME of that unit is KWh, just KiloWatt-hour edit.. another one towards the end... don't say "a thousand watts of ENERGY" , watts is NOT energy; watts is POWER; Wh ( watt-hour) is ENERGY EDIT 2: oops, i just saw your next video, about the kw per hour, now you make sense; back to the video

Nice Video. I would like to do a DIY Install. It isn't difficult if one is familiar with Electrics but what puts me off is (1) having to pay the 20% which is so annoying, why the Government can't just waive 20% off all Green products and let people so self install is beyond me and (2) the MCS Certification but with the recent Octopus announcement this may not be a problem

When you say you are “wasting” solar power, are you not able to sell it back to the grid? Or is certification required to achieve this?

Was it me, or were you referring to the wrong angle. Looked like you were using the angle to horizontal, but the website you were using was about angle to vertical. As they were both fairly close to 45it probably doesn't make much difference though

Excellent video, just what I was looking for. Got inspired by the solar setup on my campervan, and looks like you went for something that is quite similar. Plus I also have a flat roof that is barely used so great to see that, too - roof is too intense for me as well!

17:13 Go for Parallel The way solar panels are connected to an inverter-whether in parallel or in series-can significantly affect their performance, particularly in terms of output voltage, current, and overall energy production. Let's explore the differences between parallel and series connections, which can impact earnings: ### Series Connection 1. **Voltage Increase**: In a series connection, the voltage increases while the current remains the same. For example, if you connect four 250 W panels rated at 30 V each in series, the total voltage would be 120 V (30 V × 4). The total output power remains the same (1,000 W) as the current from each panel is limited by the panel with the lowest output. 2. **String Length**: The number of panels that can be connected in series is limited by the inverter's maximum voltage rating. If one panel is shaded or underperforming, the entire string's output current is affected (due to the current being equalized), which can reduce overall energy production. 3. **Higher Voltage**: Higher voltage can be beneficial in reducing line losses over longer distances between the panels and the inverter, but it may also require more expensive equipment or specific inverter models designed for higher voltage inputs. ### Parallel Connection 1. **Current Increase**: In a parallel connection, the voltage remains the same while the current increases. For four 250 W panels connected in parallel, the voltage would remain at 30 V, but the total current would increase, potentially allowing for higher total power output (up to 1,000 W if each panel produces at its rated capacity). 2. **Improved Performance**: If one panel gets shaded or is underperforming in a parallel configuration, the other panels can still operate at their maximum capacity, which reduces the impact of shading or inefficiencies on overall system performance. 3. **Easier to Manage**: Parallel connections can generally be more flexible because they allow for easier integration of additional panels without worrying about total voltage exceeding the inverter limits. ### Impact on Earnings - **Performance Under Varying Conditions**: If you have a scenario with shading or varying panel performance conditions, a parallel connection tends to perform better, resulting in potentially higher energy production and therefore higher earnings. - **Optimal Configuration**: In a well-designed system without shading or other factors affecting performance, the differences in output may be minimal. However, most real-world situations may benefit from the more resilient performance of parallel connections. ### Conclusion In summary, using a parallel connection generally offers improved performance and reliability under varying environmental conditions, which can lead to higher total energy production and increased earnings over time. The best choice between series and parallel connections ultimately depends on the specific installation conditions and design characteristics of the solar power system.

The problem with DIY solar systems in the UK is that according to the information I have seen the person installing the panels needs to be certified for the job. Householders are not allowed to work on the fuse box themselves (as you would need to in order to install a solar system or fit a new circuit) without being certified electricians.

A quick one to point out - a correction on your side (but a good one at that) - you mentioned that 42.x degrees which was the best you could get (with your restrictions) BUT angle alpha isn't the angle the righthand side is referencing for optimal angle to sun. Rather, it is the angle beta (against the vertical) which in your case is 47.5 degrees. So, you are better off that you made out. 🙂 Probably better for UK positioning as we'd rather get better power generation from the longer, brighter 'warmer' months than the colder ones. Thanks for the very informative video!

15:52 Nice and solid but a little brush of epoxy resin would help protect the softwood from the rain. It’s a cheap alternative way instead of the treated timber. Solar Panels,can stay efficient for up to 25 years according to AI. Update. A 3.7kwh battery is the most efficient system for value for money

What precautions have you in place to not backfeed the grid on a sunny day during a power cut, potentially putting someone's life at risk, and as I found out you have to have the correct smart meter from your utility company that is bidirectional otherwise it will assume that any excess you feed back into the grid is you actually drawing from the grid, and in my case it doubled our electric bill which we never got refunded for as it was impossible for the utility company to tell what was going in and what was going out, I also believe that you have to inform the utility company that you are feeding into the grid and have to have licences/certificates to do this.

Its good you can DIY grid connect solar in the UK. Not possible in Australia, even offgrid is difficult and costly. We arent even allowed to replace a light switch without 4 years of "go to the shop and buy a left hand screw driver". I have even noticed that in Germany you can buy plug and play grid connect DIY kits.

An excellent video for people to understand how to get started in solar power. I would have liked to have seen a bit more on the electrical connections to the consumer board, and how the panels were connected in. Will you be purchasing batteries to stop "wasting" solar power?

Where can I buy this 500W kettle? 😂

didn't you need a special permit to connect to grid? MCS certificate SEG and the like? You couldn't have just wired your inverter directly into you consumer unit?

No DC isolator ? Do your electrician give you an MCS certificate? Debating whether to bother with MCS certification or just invest in more battery’s (10KWH currently)

Whats the bureaucratic process for tying these to the grid like? Id always assumed DIY solar in the UK would be very difficult to get tied to the grid.

Did you do a G98 or G99 application for your setup yourself or get a sparky to assist with this? I'm trying to keep my cost down and find someone to assist me with my own project but I haven't gotten anywhere and could really do with some advise, thanks.

Very interesting and you've got me thinking about doing something similar. Few questions I assume as this is a small array this didn't require DNO approval but you had to inform them of the install. How did you get a MCS certificate for the SEG?

I went the second hand route and spent about the same. I think I will have a pair of those panels and mount them in the garden. I built my own lithium battery and there is something about running your whole house off a battery every night. We only use 3-4Kwh a day. Some days our daily electric bill is 3 pence. I think that is what the smart meter uses.

Hello, Kev. I'm Renee from JSDSOLAR. I would like to invite you to test our system. Are you interested?

Ive been off grid since Feb 2023 my system is 48v I have 9kw solar panels , 5kw inverter and 40kw battery storage all work well

If I have decided on a grid tie-in but not interested in exporting surplus once my batteries are full, but using it to heat water in a thermal store, would I need to have a smart meter fitted by my provider?

19:56 your total yield on that day is 7.7kwh ( 7700wh), Not per hour. 1.6kwh on the other day. 😊

I am surprise that you have been allowed to feed into the grid without the remote control of the DNO over your install. They suppose to have devices controlled by them so they can cut the power (isolate your electricity producing system..) to your system during power cut for network maintenance or repair faults.. You did not mentioned anything about that.

If you connect a grid tied system with a battery as you show it, there will be a loud BANG, and everything will stop working. The battery is charged by DC, not AC, it connects to the battery side of the inverter.

Is it possible to set up grid tie with hybrid inverter without batteries for the first couple months and still gain benefits?

how did you get it signed of if wired self please as I a spark and finking adding solar.. do I ring local.firms to connect up and did you need planning permission for solar in kitchen roof as I wanta do same..thanks Neil

So does the electric company compensate you in anyway for any unused electricity that goes back into the grid

I see one serious problem and one potentially serious problem. 1) The roof above. If any debris is on the roof it will fall smack down on the solar panels. That is from accumulated snow/ice to actual damaged shingles falling. A high risk for damage to the panels. 2) wind could still get under the panels and strong gusts could rip them off. I'd recommend using some celular polycarbonate panel and closing down the sides as best as possble (make a triangle shape and screw it on each gaping hole side, to prevenmt gusts of wind from going there. And also various vermin to make a nest

I think costs and ROI would of been a better add in as costs matter

Nice one. Other than the electrician wiring it up, did the power company just let you start back-feeding their grid without any hassle? Stateside one has to jump through all sorts of hoops before they'll let you connect. In my case they charge you an extra fixed cost (a solar tariff they call it) for the privilege of giving them power. Takes the mick.

I already have a 6kWh grid-tied system, but I wanted to add in a second 4x360kWh stand-alone array just to power a couple of things in my garage. This information is very useful, thank you.

I also asked AI the following “How do i generate my solar power? I know a few things that I need, but I am not 100%, so could you giver me clear advice where necessary? So I believe I need 9 Solar panels from what you’ve mentioned. So I’m assuming I need about the 4GW inverter, a DC isolator, an AC isolator and what else? Cable of some sort…” It replied, “Generating solar power for your home involves several components beyond just the solar panels. Here's a clear breakdown of what you'll need to set up a typical solar power system based on your requirement of 9 solar panels rated at 410W each. ### Components Needed for Your Solar Power System: 1. **Solar Panels:** - You’ve already decided on **9 solar panels**, each rated at **410W**. 2. **Inverter:** - You're right in thinking you'll need an inverter to convert the DC electricity generated by the solar panels into AC electricity for use in your home. - A **4 kW inverter** would be adequate for your setup (considering you're using around 3.5 kWh per day). Ensure it can handle the total output of your panels (9 panels x 410W = 3,690W). 3. **DC Isolator:** - A **DC isolator** is required to safely disconnect the solar panels from the inverter. This is an important safety feature for maintenance and emergency situations. 4. **AC Isolator:** - An **AC isolator** is installed on the output side of the inverter to disconnect the inverter from the household electrical system. This is also important for safety. 5. **Mounting System:** - You will need a **mounting system** to securely install the solar panels on your roof or on a ground structure. The mounting system will vary depending on your roof type (flat, pitched, etc.). 6. **Cabling:** - **Solar cable**: Special cables rated for high UV exposure and high temperatures, typically Solar PV rated cabling, will connect the solar panels to the inverter. - **AC cabling**: Wiring that will carry the AC current from the inverter to your household electrical system. - Make sure to have appropriate connectors, junction boxes, and disconnect switches as needed. 7. **Fuses and Circuit Breakers:** - You may need **fuses and circuit breakers** to protect your system from overload or short-circuits. 8. **Monitoring System (Optional):** - A monitoring system can be helpful to track the performance of your solar panels. It can give you data on how much energy your system is generating and help you optimize its performance. 9. **Battery Storage (Optional):** - If you want to store excess electricity generated during the day for use at night or during cloudy days, you may consider adding a **battery storage system**. ### Installation: - **Professional Installation**: Installing a solar power system involves electrical work, which can be complex and requires compliance with local regulations. It's recommended that you hire a certified solar installer to handle the installation. - **Permits and Approvals**: Before installation, you may need to check with local authorities for permits and to ensure compliance with building codes and regulations. - **Grid Connection**: If you plan to connect to the grid or take advantage of feed-in tariffs, ensure your system and installation comply with any utility company requirements. ### Conclusion: Setting up a solar power system can be a complex process, but with the right components and professional help, you can successfully generate your own electricity. Make sure to consult with a local solar provider to assess your specific needs, obtain accurate costs, and ensure the best configuration for your setup.”

If you don't mind me asking how much to sign off system with your electrian?

7:47 Makes sense, had to give credit for this comment by the narrator

What about an off grid system but with an AC input to charge the batterys in winter.

I heard that you can sell excess power back to grid, is that possible? How so if it is?

Brilliant! Thank you so much - explained so well!

Very informative video. Its a bit simplistic, you did not expand on the types of inverters when you explained the 3 installation types. maybe on a new video, also will be intersting to discuss the possibility to get a grid-tied ssytem then expand to a battery backup one

fogstar are selling a seplos rack style battery around 15.2 kw of storage, complete diy kit for £1,999 grade b batteries or grade a batteries for roughly £400 extra, buildable in 2 hours, so no batteries are not expensive, consider also octopus flux export up to 30 odd pence per kwh export, soon pay for your system :)

solax do state a 300mm air gap above inverter im afraid, and the dc isolater isnt much help to isolate the string from the inverter speaking as a guy that fits and repairs solax inverters ,you need to isolate the dc lines if and often WHEN the mc4 plug into inverter melts solax also state not to mount in direct sunlight ,i really would advise remounting in the attic , also note solax state non combustable materials above the inverter to be honest i didnt watch your video to criticise i am generally intrested to see people diy and save a few quid but there does seem some good advice offered to you here and it seems to be falling on deaf ears we only fit the inverters inside we make sure they have extra ventilation around the units we fit a dc isolater on every string at the inverter we fit an ac isolater at inverter AND at the board and heres my top tip ...........tighten your termination screws again after a day as the copper tends to squash a little, and yes i speak from wisdom after going out to many repairs due to loose screws in isolaters and badly made off mc4 plugs this is just sensible and logical advice

Hey, im in suffolk, built my own diy system last year too, 3kw, 14.4kw lifepo4 eve storage. Is awsome. Not many of us here in the uk doing this.. My setup is a bit different and diy to yours. I did the whole home assistant thing also to send data to my phone/tablet on the wall. Did the lot for just over £4k. (second hand 250w panels, 3kw epever hi hybrid inverter, jk bmses, diy battery boxes, diy everything hence the cost. 👍

Informative and very useful. Thank you and good job!!!

Plyontech tech 4.8kw is as low as 1300

You installed the isolation switch on the AC side after the inverter. Doesn't the isolator switch have to be on the DC sides to shut off the solar panels? Never open the DC plugs when the sun is shining! This creates a DC arc and can be dangerous. It is better to wait until the evening when there is little sun on the modules. That's what the DC isolating switch is for. Installing the inverter outside in wind and weather is an English affair. Maybe cover the lower area with the connections from rain?

This is a great, and informative video. Thanks for the clear information. But. I have one question for you: Surely you sell your excess electricity to the grid? I thought they paid you for your power?? If not, why not? You called it wasted energy, but if it was sold, it would be far from wasted?

great content i realy like thats its short but full of good info. very happy

Very good and informative video, very helpful . many thanks

1. Did you get MCS certificate? 2. Did you have to get DNO approval? And of so did you do that yourself/ was it an easy process? Makes sense to mount onto flat roof as mounting on the main roof would have meant a few extra grand just in scaffolding costs

Two questions 1. Did you have to notify Building Control and the DNO. 2. What is your payvack period expected to be?

Great video, i would advise to anyone, that DC voltage is dangerous and can kill if you dont know what you are doing and also can arc also. You should install DC isolators and instead of timber frame consider using unistrut bars with proper solar panel clamps wo ensure that dont rattle and that the panel is clamped in the clamping zones correctly to prevent panel distortion and damage.

How much did it cost to have it connected to the grid ?

What was the cost of the electrician?

Great video,, I think I’m going to do similar,, hopefully it will take the sting out of the electric bill, I will start small and possibly go bigger if I like it,