Comparing the economics of EV charger sales and long-term rental
An EV-charging equipment provider planned to serve home, professional and public installations through a mix of hardware sales and professional-only rental contracts. The forecast needed to follow each configuration through procurement, outsourced installation, onboarding, support, maintenance and platform access.
Each setting required its own equipment, configuration and service assumptions.
Upfront ownership and externally financed long-term rental create different cash profiles.
Equipment and installation sit beside setup, support, maintenance and platform access.
Tax treatment depends on the transaction, customer type and sales market.
WHY THIS WASN’T A TEMPLATE EXERCISE
The model had to respect
how the business actually moved.
The reconstructed architecture starts with a product and configuration selector, routes each order through its customer, contract and service logic, then brings one-off margin, recurring revenue, financing payments, support cost and tax treatment into one connected cash view.
A charger order was a bundle, not one average unit
Residential, professional and public equipment could carry different cable options, accessories, procurement cost and installation work. A single blended hardware assumption would obscure which mix actually produced margin.
Rental changed both cash timing and service duty
A professional rental created recurring income but also a multi-year relationship, external hardware financing and an ongoing maintenance obligation that varied by service tier.
Indirect tax could change across the customer map
Cross-border procurement, consumer sales and professional transactions did not all follow the same treatment, so tax needed to be routed by transaction rather than embedded in one price assumption.
MODEL ARCHITECTURE
From operating activity
to a decision-ready view.
Each layer has one job. Together they keep the commercial story, unit economics and cash consequences on the same timeline.
Product and configuration selector
Each order starts with a generic charger family, cable option, accessories and the installation or setup service appropriate to that customer setting.
Sales economics
Equipment price, procurement cost, outsourced installation and one-off onboarding build the contribution from an upfront sale.
Rental cohorts
Professional installations enter configurable long-term cohorts so monthly charges, contract duration and the remaining installed base stay visible.
External financing schedule
Third-party funding for rental hardware is translated into its own payment timeline rather than being mistaken for an ordinary operating expense.
Support and maintenance tiers
Setup, recurring support and increasingly comprehensive maintenance packages attach to the relevant installed units and contract type.
Management-platform access
Professional customers can carry a separate software subscription or receive access through the most comprehensive service bundle.
Tax, profit and cash view
A transaction-level tax router keeps net operating economics comparable before the selected market and customer treatment flows into invoices and cash.
WHAT THE ANALYSIS SURFACED
Useful answers,
without exposing client data.
The takeaways are intentionally qualitative. Exact assumptions, calculations and outputs remain inside the confidential client model.
The product dropdown was the model backbone
A controlled product selector was not merely an input convenience: it determined procurement, installation, price, service attachment and the appropriate customer route for every order.
Support followed the installed base, not only new sales
Monthly support and maintenance costs depend on units still under service, so they need an installed-base schedule rather than a percentage of current-period equipment revenue.
Rental margin had to survive financing and service
Recurring rental income only becomes comparable with an upfront sale after hardware funding, installation, support and the selected maintenance tier share the same timeline.
Tax logic should not hide the underlying unit economics
Modeling net prices first and routing indirect tax separately makes operational margin easier to compare while still showing the cash effect of each transaction type.
MODELING APPROACH
The working system
behind the answer.
- Product, cable, accessory and installation assumptions matrix
- Home, professional and public installation forecast
- Upfront equipment-sale and installation schedule
- Long-term rental cohorts and external-financing schedule
- Setup, support, maintenance and platform-subscription schedules
- Service-tier contribution and installed-base view
- Customer- and market-aware indirect-tax routing
- Integrated profit, cash and commercial-scenario comparison
CASE CONFIDENTIALITY
This anonymized case explains the EV-charging commercial logic without naming the company, team, charger brands, product names, locations, sales markets, dates, exact tax rates, contract lengths, prices, volumes, financing terms, service fees or model versions. The source briefs, correspondence wording, workbook, formulas and exact financial outputs remain private. The illustration is an original fictional service network rather than a real charger, installation, platform, customer site or client workflow.