How much could you save
with OpenGrid?

See exactly where every penny of your electricity bill goes — and how peer-to-peer trading cuts costs.

Your Current Bill

Annual Electricity Usage

kWh

Typical UK household ≈ 3,500 kWh

Current Price per kWh

p/kWh

Ofgem cap Q2 2026 ≈ 24.5p/kWh

Current Annual Bill

Auto-calculated from usage × price

Your Setup

Local Matching Rate

70%

0% — wholesale only100% — fully local

Smart Assets

EV Battery Heat Pump

Enable to unlock TOU routing savings — requires at least one flexible asset.

Your Savings at a Glance

Current

24.5p

per kWh

£858

per year

Basic P2P

18.2p

per kWh

£637

per year

−£221 (26%)

+ TOU Routing

Smart assets required

Your saving: £0

Add EV, battery, or heat pump to unlock

Detailed Cost Breakdown

Component	Current	Basic P2P	+ TOU Routing
⚡ Energy Layer
Generation	12.5p	8.3p
Trading / brokers	1.2p	0.4p
Hedging / risk	0.7p	0.2p
Imbalance / shaping	0.5p	0.3p
Supplier layer	2.7p	—
Energy subtotal	17.6p	9.2p
🔌 System Layer
DUoS / TNUoS	3.2p	3.2p
Renewables Obligation (RO)	0.2p	0.2p
CfD Levy	0.2p	0.2p
Capacity Market	1.2p	1.2p
FIT / other levies	0.7p	0.7p
VAT (5%)	1.2p	1.0p
System subtotal	6.7p	6.5p
🌐 Platform
OpenGrid fee	—	2.5p
TOTAL per kWh	24.5p	18.2p	Add smart assets

Visual Comparison

Cost Breakdown (p/kWh)

Savings Waterfall (£/year)

Illustrative model based on Q2 2026 Ofgem price cap data (24.5p/kWh unit rate). Actual OpenGrid prices depend on local matching rates, asset flexibility, and usage patterns. Standing charge costs are excluded from this unit-rate breakdown. This calculator is for illustrative purposes only.