Tariff Allocation
Visualize how export headroom H is allocated fairly across EVs using weighted max–min (“water-filling”). Capacity part uses kW at the coincident peak; Network tariff part uses kWh and an injection pool.
Capacity / Peak charges (kW)
Used headroom 0.00 / H
0.00 kW · Target level t* 0.00
Total demand Σp
—
Effective headroom H′ = min(H, Σp)
—
Total contribution Σc (kW)
—
demand height = pᵢ / wᵢ
filled = min(pᵢ, wᵢ·t)
waterline t
| # | pᵢ (kW) | wᵢ | bᵢ = pᵢ/wᵢ | aᵢ (kW) | cᵢ (kW) | € share |
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Network tariff (energy, kWh)
Allocate an injection pool (kWh) to EVs and bill remaining net import energy at a tariff (€/kWh). Choose allocation rule.
Total energy Σe
—
Effective headroom Hₑ′ = min(Hₑ, Σe)
—
Net import Σcₑ (kWh)
—
| # | eᵢ (kWh) | wᵢ (used) | aᵢ (kWh from injection) | cᵢ (kWh net import) | Import € (cᵢ×r) | Credit € (aᵢ×r_in) | Net € |
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Energy price (time-of-use) — example day
24 hourly prices (bars). Drag the window edges on the chart to set EV A’s start & stop; cost uses hourly prices.
Drag the chart handles to set start time and duration
If fewer prices than kWh, last price is reused.
Price (€/kWh, bars)
Charging window (shaded)
| # | Energy over day (kWh) | Energy cost (€) |
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Grand totals per driver
Peak € (kW) + Network tariff € (kWh) + TOU energy € (€/kWh over the day).
| # | Peak € | Network tariff € | Energy (TOU) € | Total € |
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