Load Shaping Service
Industry ReformsThe Elexon service that derives half-hourly load shapes from actual metered data under MHHS, replacing the old D0018 statistical profile coefficients.
Before MHHS, the half-hourly shape of a non-half-hourly meter's consumption was estimated using statistical profiles published as D0018 profile coefficients. The Load Shaping Service is the MHHS replacement. It went live in October 2025.
What it does: Rather than applying a fixed statistical profile for a customer type, the Load Shaping Service builds load shapes from real settlement data. As more meters settle on actual half-hourly readings, the shapes used for any remaining estimation reflect observed behaviour, not historic assumptions.
Why it replaced D0018:
- D0018 coefficients were produced by Elexon's Profile Administration Service, which is being decommissioned through MHHS (supplier sampling submissions ceased late 2024)
- Statistical profiles averaged individual behaviour into broad customer-type shapes
- Actual half-hourly data is far more accurate for settlement
What it means in practice: The Load Shaping Service is settlement infrastructure, not something that appears on a charge breakdown. Its significance is that the long-standing D0018 profiling approach is being retired. D0018 data remains needed for reconciling pre-migration periods through to around 2028, after which it can be archived.
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