UK Non-Commodity Charge · Auto-generated
AAHEDC (Electricity)
Current rates, who sets them, and where they are forecast to go.
What AAHEDC (Electricity)is, who sets the rate, what the revenue funds, and where it's heading. Sourced daily from the Purely Energy non-commodity cost data hub.
AAHEDC (Electricity): what it is, who charges it, and what it pays for
What it is
The AAHEDC (Electricity) charge in plain English
Transmission charge based on your demand during the 3 highest national peaks in winter (Nov–Feb). Called TRIAD because it’s the average of your 3 peak half-hours. Only applies to HH-metered sites.
Introduced 1990 (privatisation). Reduced importance since TCR reform in 2023.
Who charges it
The body that sets the rate
NESO (National Energy System Operator)
Unit
p/kWh
Applies to
UK business electricity
What it pays for
Where the revenue ends up
National high-voltage transmission network (275kV/400kV pylons and cables)
Published rate history
| Financial year | Rate | YoY change | Source |
|---|---|---|---|
| FY2020 | 0.0186p/kWh | - | published |
| FY2021 | 0.0404p/kWh | +117.3% | published |
| FY2022 | 0.0407p/kWh | +0.6% | published |
| FY2023 | 0.0420p/kWh | +3.4% | published |
| FY2024 | 0.0421p/kWh | +0.3% | published |
| FY2025 | 0.0410p/kWh | -2.8% | published |
Forecast trajectory
AI-assisted forecasts from our deep-research pipeline. P10, P50 and P90 are the 10th, 50th and 90th percentile outcomes; P50 is the central estimate.
| Year | P10 | P50 | P90 | Confidence | Rationale |
|---|---|---|---|---|---|
| 2026-27 | 0.0420 | 0.0442 | 0.0465 | high | Based on confirmed RIIO-ED2 investment plans and regulatory visibility |
| 2026 | - | 0.0442 | - | - | |
| 2027-28 | 0.0455 | 0.0481 | 0.0510 | high | Supported by specific RIIO-ED2 determinations and scheduled projects |
| 2027 | - | 0.0451 | - | - | |
| 2028-29 | 0.0475 | 0.0536 | 0.0595 | med | Peak investment period with known offshore wind connection projects |
| 2028 | - | 0.0460 | - | - | |
| 2029-30 | 0.0465 | 0.0521 | 0.0580 | med | RIIO-ED3 transition period with regulatory framework uncertainty |
| 2029 | - | 0.0469 | - | - | |
| 2030-31 | 0.0460 | 0.0567 | 0.0710 | low | Post-RIIO-ED2 period with unknown regulatory parameters |
| 2030 | - | 0.0478 | - | - | |
| 2031-32 | 0.0450 | 0.0587 | 0.0730 | low | Highly speculative due to unknown RIIO-ED3 framework |
| 2031 | - | 0.0488 | - | - | |
| 2032-33 | 0.0445 | 0.0579 | 0.0740 | low | Placeholder projection with compounding uncertainties |
| 2032 | - | 0.0498 | - | - | |
| 2033-34 | 0.0442 | 0.0585 | 0.0750 | low | Directional indicator only, awaiting RIIO-ED3 determinations |
| 2033 | - | 0.0508 | - | - | |
| 2034-35 | 0.0440 | 0.0591 | 0.0760 | low | Speculative conditions as regulatory framework unknown |
| 2034 | - | 0.0518 | - | - |
AAHEDC (Electricity) FAQs
What is the AAHEDC (Electricity) charge?
Transmission charge based on your demand during the 3 highest national peaks in winter (Nov–Feb). Called TRIAD because it’s the average of your 3 peak half-hours. Only applies to HH-metered sites.
Who sets the AAHEDC (Electricity) rate?
The AAHEDC (Electricity) rate is set by NESO (National Energy System Operator).
What does AAHEDC (Electricity) pay for?
AAHEDC (Electricity) revenue supports National high-voltage transmission network (275kV/400kV pylons and cables).
What is the current AAHEDC (Electricity) rate?
For financial year 2025, the published AAHEDC (Electricity) rate is 0.0410 p/kWh.
What is the AAHEDC (Electricity) forecast?
Our latest forecast for 2026-27 is 0.0442 p/kWh (high confidence). Based on confirmed RIIO-ED2 investment plans and regulatory visibility
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Rate data sourced from the Purely Energy non-commodity cost data hub (dh.purelyenergy.co.uk). Published rates come from statutory publications by the body listed above. Forecasts are AI-generated from published guidance and market trends; treat P50 as a central estimate and reference P10/P90 for sensitivity.