Key points
- List every SPID before negotiating — hidden accounts are common
- Insist on one consolidated invoice with site-level breakdown
- Standardise billing cycles across the whole estate
- Variance alerts catch leaks weeks before a quarterly bill does
Audit every supply point
Start by listing every SPID across your estate. Sites often carry legacy accounts, closed premises, and mis-billed drainage-only supplies that shouldn't exist.
Consolidate to one retailer
Pick a retailer with a genuine multi-site product, not just a spreadsheet re-export. Look for a single account manager, one monthly consolidated invoice with a site-level breakdown, and cost-centre coding.
Standardise billing frequency
Move every site to the same billing cycle. Mixed frequencies make month-end reconciliation harder than it needs to be.
Set up variance alerts
Ask for automatic alerts when a site's consumption moves more than 15–20% month-on-month. That's how you catch leaks and stuck meters early.
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