Thames Water Utilities Limited
Customer named in the DNOs' registers
In UKPN's October 2026 and SSEN's September 2026 editions
The registers spell this customer’s name more than one way: “Thames Water Utilities Limited” (6 sites), “THAMES WATER UTILITIES LIMITED” (2 sites), “THAMES WATER UTILITIES LTD” (1 site) and “Thames Water Utilities” (1 site).
Capacity by DNO
Capacity by technology
| Technology | Sites | Capacity | Connected | Accepted to connect |
|---|---|---|---|---|
| Gas and other fossil | 4 | 25.5 MW | 25.5 MW | – |
| Bioenergy and waste | 4 | 7.3 MW | 4.8 MW | 2.5 MW |
| Solar | 2 | 6.3 MW | 4.8 MW | 1.5 MW |
Each site is grouped by its first energy source, as the register names it.
Sites
Each site under this name in the DNOs' latest editions, the largest first.
Site, company and substation names are shown as they appear in the registers, including capitalisation.
| Site | DNO | Grid supply point | Technology | Status | MW |
|---|---|---|---|---|---|
| Mogden Stw | UKPN | Laleham | Gas and other fossil | Connected | 18 |
| ASHFORD COMMON | SSEN | LALEHAM | Solar | Connected | 4.75 |
| Abbey Mills Pumping Station | UKPN | West Ham | Gas and other fossil | Connected | 4 |
| Denham Way | UKPN | Watford South | Bioenergy and waste | Accepted to connect | 2.5 |
| Beddington Sewage Works | UKPN | Beddington 132kV | Gas and other fossil | Connected | 2 |
| Longreach | UKPN | Littlebrook 132kV (SPN) | Bioenergy and waste | Connected | 2 |
| Rye Meads STW | UKPN | Rye House | Bioenergy and waste | Connected | 1.6 |
| LITTLE MARLOW TWUL PV | SSEN | AMERSHAM | Solar | Accepted to connect | 1.5 |
| Shalford Water Treatment Works | UKPN | West Weybridge | Gas and other fossil | Connected | 1.5 |
| IVERZDATA NOT AVAILABLEZZ | SSEN | IVER 132KV | Bioenergy and waste | Connected | 1.2 |
Grid supply points
Each grid supply point its sites are at, with the capacity of its own sites there.
| Grid supply point | DNO | Sites | Connected | Accepted to connect |
|---|---|---|---|---|
| Laleham | UKPN | 1 | 18 MW | – |
| LALEHAM | SSEN | 1 | 4.8 MW | – |
| West Ham | UKPN | 1 | 4 MW | – |
| Watford South | UKPN | 1 | – | 2.5 MW |
| Beddington 132kV | UKPN | 1 | 2 MW | – |
| Littlebrook 132kV (SPN) | UKPN | 1 | 2 MW | – |
| Rye House | UKPN | 1 | 1.6 MW | – |
| AMERSHAM | SSEN | 1 | – | 1.5 MW |
| West Weybridge | UKPN | 1 | 1.5 MW | – |
| IVER 132KV | SSEN | 1 | 1.2 MW | – |
What changed recently
Changes to its sites found in both of two consecutive monthly editions of their DNO's register, the latest first.
UKPN, September 2026 edition to October 2026 edition, for this customer's sites: 7 sites matched. Every September site and every October site had a match in the other edition.
SSEN, August 2026 edition to September 2026 edition, for this customer's sites: 3 sites matched. Every August site and every September site had a match in the other edition.
No change to the status, capacity, technology or customer of its sites in the editions QueueWatch holds.
Price what a delay would do to your project
QueueWatch reports what changed in the DNOs' published connection registers. It doesn't tell you what to do about it. That's what QueueQuant is for.
Give QueueQuant a site and it compares every way you could power it, on the grid or off it: waiting for the firm date, taking a non-firm offer, building a private wire or going off-grid, across every combination of contracted capacity, generation and battery. That’s millions of possible plans, each tested against thousands of possible futures for delay, curtailment and price. It returns the one plan that holds up best, even when that plan is not to build.
Get the plan that holds up best for your site, and where that answer flips.
What you get from QueueQuant
- The route to power that wins
- How to size every asset on the site
- The level of delay or curtailment at which that answer flips
- Whether the project is worth building at all
- How bad the worst outcomes get, at the risk level you choose