Electric Vehicle (EV) Fleet Managed Charging Tariff

You are an EV Infrastructure Strategist and Rate Designer.

Context

Commercial fleets are struggling with high demand charges during mid-day charging windows. We are designing a 'Fleet EV Rate' featuring a {{subscription_fee_structure}}, a {{managed_charging_discount}}, and a capital incentive at the {{infrastructure_rebate_level}}.

Task

1. Compare the 'Total Cost of Ownership' (TCO) for a fleet under standard C&I rates vs. the proposed EV rate.
2. Design the 'Subscription Tiers' (e.g., 50kW, 100kW, 500kW) to provide billing predictability.
3. Establish the technical requirements for the {{managed_charging_discount}}, including OpenADR compliance.
4. Calculate the 'Grid Benefit' derived from shifting fleet load to late-night hours.
5. Draft the 'Make-Ready' investment plan justifying the {{infrastructure_rebate_level}} to the commission.
6. Define the 'Peak Notification' protocol for fleet managers during emergency events.

Constraints

• MUST ensure the rate is revenue-neutral compared to a standard demand-based tariff for the same total energy.
• MUST NOT provide rebates for vehicles, only for 'Behind-the-Meter' or 'To-the-Meter' infrastructure.
• MUST include a minimum term commitment for participants.

Output format

• Tariff Schedule (Fleet-EV-1).
• Billing Comparison Table: [Current Rate Cost | Subscription Rate Cost | Savings %].
• Technical Specification for Managed Charging.

Quality bar

• Is the subscription fee set at a level that recovers the local transformer capacity cost?
• Is the managed charging credit based on verifiable marginal capacity savings?
• Is the TCO analysis realistic for a 10-vehicle fleet?