Commercial solar case study
James Vincent Enterprises case study: commercial solar leads in Bristol, Wales and Bath, and a project with the DNO
James Vincent of James Vincent Enterprises has spent the past year in commercial solar and has worked with TNW since about June 2026. He covers Bristol, Wales and Bath, and his most promising project so far is with the DNO.

Watch the full interview with James Vincent Enterprises. This page summarises what they told us on camera.
Transcript of the interview (edited)
Read the transcript of the James Vincent Enterprises interview (edited)
Word for word from the interview, with filler words such as “um” left out. A few short passages are left out (marked “...”), so the video above says a little more than the text below.
Interviewer: James I know you've been working with us on getting you guys some commercial leads if you would like to introduce you and your business that would be great for the context of the video.
James: Sure. My name is James Vincent. My business is James Vincent Enterprises, and for the past year I have been working in commercial solar under various guises. And I've been working with Roman and TNW since about June time. Really looking at the sorts of leads that have been collected by his company and how I can then take those on and visit the clients and work out what's right for them
Interviewer: Brilliant. Yeah, you answered my next question, which was how long have you worked with us? I'll get straight into it then. So what has been the most valuable part of the service so far to you?
James: So I think I spoke with Bryn, who was the one of the managers. He was really knowledgeable about how the process and reassuring, I should say, about how the process should work for me as, as your client buying the leads. Really helped me work out all the, the detail that came up on the WhatsApp group. I should say the leads and the WhatsApp group process worked really well. It really demonstrated how quickly you guys can get leads in front of me as someone that wants to buy them. And then I could respond straight away and get what I what I wanted from those leads and then work out how I could diarize and go and see these leads.
Interviewer: Yeah, we try and make it really simple on the WhatsApp group. We understand that everyone's busy, doing their thing, nothing easier than just taking out your WhatsApp and looking on there. What's the sort of average deal size have we been bringing you so far?
James: So the average deal size, if I work back from from the lead that, the leads that I've been paying you, so I think I was paying you about £400 a lead. And the, actually the project that I think has got most success, 'cause these things take a while in commercial that project should be worth about 50, 60K. So I'm really hopeful that that goes ahead. We've done a couple of meetings. It's all in DNO if that means anything to whoever might watch this. It's all in DNO at the moment. It's not necessarily super simple, but I think it's going through in the right way. And actually for that one, what, what was great was I found a local subbie who could help me walk around the site with the client. And I think that, that gave the client some some real reassurance. ... the project's on the move. And it can be six weeks or, three months if things get complicated, so you never really know.
Interviewer: In terms of the lead volume as well how has that been?
James: That was really good. I ended up buying only a handful of leads from yourself. But that was, that, that was fine. I got a whole load of volume on the WhatsApp group, what I've mentioned. And that's what I needed at the time, 'cause I needed to really understand the sorts of leads, whether they were right for me, whether they were big enough for me to service in whatever way. And I would absolutely have confidence if I was going to do residential solar, for example, in the future. I would have absolute confidence that I'd be able to use use TNW leads again.
Interviewer: And in terms of the communication and customer service, how has that been with the team?
James: That's been great. You guys have been really keen. You guys have been ringing me, "Oh, look, I've got this really good lead. I think it's right for you." I think sometimes when I say I really need the leads to be of in the Bristol, Wales, Bath area, that doesn't mean on the South Wiltshire Coast, in the nicest possible way. 'Cause there is a limit about how long I'm prepared to drive. But I think we, we found a groove, and we found the way to find the right balance.
Interviewer: ... And in terms of the performance-based approach where, you would only pay for an attended appointment is that something that would be scalable for someone like yourself?
James: In answer to your question, yes, I do think that's scalable. And it focuses my mind as an introducer and a solar provider on exactly what sort of leads I want to pay for ultimately. I think me paying up front with you guys focuses that even more. What I would say is you never know how good the lead is until you actually turn up and see the property and talk to the person and see the bill. You guys did a great job of getting a lot of the material and information. Some of that and I know it's really difficult to tease out, basic stuff like usage and how complicated is your roof and your cabling and and lease and tenants and that sort of stuff. So I think it was a learning for me on what actually information or what even more information do I need armed with before I go and see a potential client. ... it's definitely scalable.
Interviewer: What would they be? Just out of curiosity.
James: number one, Has the client, potential client engaged with another solar provider already and how far have they got through that process? So for example if I turned up to a place and and I, we didn't know that they'd already gone with another company and the DNO had already been been submitted, that means it's a wasted trip for me, but it's still a learning. So that, that's number one. Number two it's probably learning about size of system. So really... and this is a bit of my learning playing around on OpenSolar, really gauging what the opportunity is and if it's a quick win or if it's likely to take a little time. That's not necessarily you guys. The third one would be, and this depends on whether it's a farm or industrial, that sort of thing, the whole single phase, three phase. And it just gets really complicated. And again, it will be really difficult to try and get all of that information on the phone. ... I've been to a, a beautiful farm. It's all Airbnbs and yurts, and he says, "Oh, I've got a swimming pool here, and I've got a field I can do a ground mount." Great, but when you then start thinking about transmission and groundworks, it gets really complex
Interviewer: ... we've got, if they've had previous quotes from other solar providers now single phases and three phases on there now as well. And also we've just added in how many meters they're on as well. Literally from the end of last week. ... we've recently invested in a software where we can pull half hourly data from the suppliers within LOA ... very recently, like last week, implemented.
James: Yeah, the, the LOA is is definitely a mechanism to get round that. And the more we can we can prep a customer for what I'm likely to ask or want then yeah, the, the better really.
Interviewer: And one final question. Would you recommend us to other companies who are looking to get a consistent flow of commercial solar work?
James: Yes, absolutely. We've talked about a relatively short relationship, but I've bought leads, I've seen the process end to end. And I've made some valuable contacts and the clients have been hopefully, fingers crossed will come out. So I will sing your praises even more when I when that lead comes in.
- Interviewee
- James Vincent, James Vincent Enterprises
- In commercial solar
- The past year
- Working with TNW since
- About June 2026
- Area he covers
- Bristol, Wales and Bath
- Most promising project
- About £50,000 to £60,000, with the DNO
Who James Vincent Enterprises are
James Vincent runs James Vincent Enterprises. He has worked in commercial solar for the past year "under various guises", and has worked with TNW since about June 2026: looking at the leads TNW collects, then visiting the businesses and working out what is right for them.
He covers the Bristol, Wales and Bath area. As he puts it, there is a limit to how far he is prepared to drive.
The situation
At the start James wanted to see a lot of leads before buying many: he needed to understand the sorts of sites on offer, whether they were right for him and whether they were big enough for him to service. He bought only a handful, which he says was fine, while the WhatsApp group gave him the volume he needed to learn from.
He also wanted to know, before driving to a site, the things that decide whether a visit is worth it. In his words, you never know how good a lead is until you turn up, see the property, talk to the person and see the bill.
What TNW delivered
What James valued most was the process. He spoke with Bryn, one of TNW's managers, who he found knowledgeable and reassuring about how it should work for him as a client buying leads, and the leads and WhatsApp group process worked well. Leads reached him quickly, he could respond straight away, and then he could work out how to get the visits in the diary.
His most promising project should be worth about £50,000 to £60,000 and is with the DNO. There have been a couple of meetings, and for that one he brought in a local subcontractor to walk round the site with the client, which he says gave the client real reassurance. He is clear that commercial projects take a while: it can be six weeks, or three months if things get complicated.
On area, the team rang him about leads they thought were right for him, and at first some were further afield than he wanted. Bristol, Wales and Bath, he says, "doesn't mean on the South Wiltshire Coast". They found a groove and the right balance.
Asked whether paying for attended appointments is scalable for a business like his, he said yes: it focuses his mind on exactly which leads he wants to pay for. He was paying "about £400 a lead", and says paying up front focuses that even more. With TNW you only pay for appointments that are actually attended, and any that aren't viable we replace.
His feedback shaped the lead itself. He told us what he needs to know before a visit: whether the business has already been talking to another solar company and how far that got (a site whose DNO application is already in is a wasted trip), the likely size of system, and whether the site is single phase or three phase. Every lead now says whether the business has had quotes from other solar providers and whether it is single or three phase, along with how many meters the site has, and TNW can now pull half-hourly data from the supplier with a letter of authority. James: "the more we can we can prep a customer for what I'm likely to ask or want then yeah, the, the better really."
Would he recommend TNW to other companies looking for a consistent flow of commercial solar work? "Yes, absolutely." He would also have confidence using TNW leads again if he moved into residential solar.
The model behind it is the same for every installer: TNW finds and qualifies the business, books the meeting into your diary and you pay per qualified, attended appointment, not per raw enquiry or a monthly retainer. Read how pay per appointment commercial solar leads work, or see the checks behind each booking in how to qualify commercial solar leads.
Results
- Leads land in the WhatsApp group fast: "It really demonstrated how quickly you guys can get leads in front of me as someone that wants to buy them."
- His most promising project "should be worth about 50, 60K" and is with the DNO now.
- His feedback is now on every lead: whether the business has had other solar quotes, single or three phase, and how many meters the site has.
- "Yes, absolutely ... I've bought leads, I've seen the process end to end."
“It really demonstrated how quickly you guys can get leads in front of me as someone that wants to buy them.”
Want results like James Vincent Enterprises?
TNW Marketing books pre-qualified, exclusive commercial solar site meetings for installers. TNW's show rate is 60%+, and you pay per qualified, attended appointment with no retainer and no minimum spend. See the commercial projects ready for survey now.
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