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What is a SPID (Supply Point ID)?
A SPID is the unique reference number for your water supply, the water world’s equivalent of an energy MPAN. If you want to switch retailer or sort out a billing query, it’s the number that identifies exactly which supply you’re talking about.
You’ll find it on your water bill, and you’ll need it whenever you switch.
What SPID stands for
SPID stands for Supply Point ID. It’s a unique 10-digit reference given to every water and wastewater supply point in the non-household market. Each meter or connection has its own SPID, so a single site can have more than one. Typically one for water and one for sewerage.
Why your SPID matters
The SPID is how the central market system, and every retailer, identifies your supply. When you switch retailer, request a quote, or query a bill, the SPID makes sure everyone is looking at the same connection. Without it, a switch or a correction can stall.
Where to find your SPID
Your SPID is printed on your water bill, usually near your account or supply details. If you can’t find it, your current retailer can give it to you, or it can be looked up from your address in the central market database. Remember a water supply and a sewerage supply each have their own SPID.
How a SPID is structured
A SPID is tied to the supply point, not to whoever happens to be paying the bill. Move into a unit that already has a water connection and you inherit its SPID. The number itself is a long string that the market systems use to route readings, charges and switches to the right place.
Most sites have separate SPIDs for clean water coming in and waste water going out. That’s normal. It means a single property can show more than one SPID on a bill, and each one needs to be quoted correctly when you query a charge or move supplier.
Using your SPID to compare or switch
Your SPID is the first thing anyone asks for. When you compare business water suppliers, the number tells the retailer exactly which supply they’re quoting against, so the price you get back reflects your real site rather than a rough estimate.
It’s the same when you decide to move. The switch process runs off the SPID, and having it ready is the difference between a switch that completes quietly and one that stalls because nobody can match the address to a supply.
How a SPID differs from an MPAN or MPRN
If you also handle the electricity and gas, you’ll have come across an MPAN and an MPRN. A SPID is the water equivalent. One identifier per utility, each pointing at a single supply at a single property.
The practical takeaway is simple. Keep all three to hand for each site. When something needs querying, the right reference number gets you past the first five minutes of any call.
SPID FAQs
What is a SPID?
A Supply Point ID, a unique 10-digit number that identifies a specific water or wastewater supply point in the business water market.
Where do I find my SPID?
On your water bill, near your account details. If it isn’t obvious, your retailer can tell you, or it can be found from your address.
Is a SPID the same as an MPAN?
It’s the water equivalent. An MPAN identifies an electricity supply; a SPID identifies a water or wastewater supply.
Can one site have more than one SPID?
Yes. It’s common to have separate SPIDs for water and for wastewater, and larger sites can have several.
Do I need my SPID to switch supplier?
It makes switching far smoother, because it pins down exactly which supply is moving. A retailer can usually find it for you if needed.
Do I need my SPID to switch water supplier?
It makes everything quicker. A retailer can sometimes trace it from your address, but giving them the SPID up front removes the guesswork and avoids a switch being matched to the wrong supply.
Does my SPID change if I move premises?
Yes. The SPID belongs to the property, so a new site means a new SPID. Your old number stays with the premises you’ve left.
Ready to switch or query your supply?
Have your SPID handy and we’ll help you compare retailers, with no obligation.
