Business financial model file
Solar Installation Business Financial Model
Budget solar installation equipment and mobilization cash before assuming signed projects become completed, collected systems in the same month.
Opening investment and working cash
The original contractor case sells completed systems; it does not own a generation project or assume a customer tax credit. Tools and access equipment are investment, while initial system materials/mobilization are working cash. Actual permissions and installed-system scope need verification.
| Cash use | $ |
|---|---|
| CAPEX: Truck/access equipment | 50,000 |
| CAPEX: Installation/testing tools | 20,000 |
| CAPEX: Office/design equipment | 10,000 |
| Pre-opening: Local professional/plans/training setup | 10,000 |
| Pre-opening: Pre-opening customer acquisition | 7,000 |
| Refundable deposit / tied-up cash | 5,000 |
| Opening stock / initial working inputs | 20,000 |
| Reserve: 2 selected fixed-cost months | 67,600 |
| Selected opening cash total | 189,600 |
CAPEX totals $80,000, pre-opening expense $17,000 and working cash $92,600. The deposit and opening stock tie up cash; they are not added again as monthly rent or consumed inputs. The reserve is a chosen fixed-cost buffer, not proof of full funding. Obtain actual installed/tax-inclusive quotes and dated opening payments.
Monthly fixed and variable OPEX
Three 160-hour installers have 336 selected productive hours at 70% of paid time. Design/project management is a separate$6,500 loaded budget. Outsourced roof/engineering work and warranty service below are additional selected resources, not the same internal field hours.
| Commitment | $ per month |
|---|---|
| Three installers: loaded 160-hour rosters | 18,000 |
| Design/project manager: loaded budget | 6,500 |
| Workspace | 2,500 |
| Vehicle fixed services | 1,800 |
| Insurance | 1,800 |
| Software | 600 |
| Marketing | 2,000 |
| Admin | 600 |
| Total selected fixed cash | 33,800 |
| Item | $ per unit |
|---|---|
| Net collected selling value | 22,000 |
| Panels/inverter/balance-of-system materials | 11,000 |
| External roof/engineering allocation | 2,500 |
| Selected per-project permit/inspection budget | 500 |
| Warranty-service allowance | 400 |
| Percentage-only fee allocation (1%) | 220 |
| Contribution before scheduled payroll/fixed OPEX | 7,380 |
The percentage fee is an aggregate allocation, with no fixed per-payment charge assumed. Unit contribution is not owner income: the full listed monthly roster and overhead still need coverage.
Capacity, break-even and a lower-sales case
At 48 productive person-hours per system the crew permits seven installations. The selected completion/interconnection calendar permits five, which is also planned volume. That calendar is an assumption, not a national approval lead time or proof that a particular project can connect.
For this fixed mix and commitment, whole-unit cash break-even is 5 completed paid system installations per month: ($33,800) ÷ $7,380, rounded up. The aggregate capacity is 5 units; it does not establish customer demand or a workable daily sequence.
| Paid units | Net sales $ | Selected result $ |
|---|---|---|
| 3 | 66,000 | -11,660 |
| 5 (planned) | 110,000 | 3,100 |
Three paid completions retain the field/design team. A moving approval date can remove an entire system from the month's receipts; the prior guide's project/payment case remains a distinct illustration.
Practical KPI definitions
Measure contribution per completed system and actual installed scope, sold-to-completed conversion by contract cohort, days of unbilled materials and collection after milestones. Do not treat incentive eligibility or customer financing approval as contractor cash already collected.
No tax credit, finance, income tax or future truck/tool replacement is counted. Supplier deposits, progress payments and warranty obligations require dated project cash schedules.
Method context: SBA business planning. All case prices, wages, cost ratios, reserve and capacity inputs above are original planning assumptions.
What the selected model covers
The official FinModelsLab listing describes marketing budgets and acquisition cost, service allocations and lifetimes, billable hours and hourly prices. Costs include installation inputs, variable expenses, role-based payroll, overhead and dated investments. Stated outputs include profit and loss, monthly and annual cash forecasts, break-even indicators and dashboard charts.
Use procurement cash to qualify the sales plan
Our assumed $15,000 job contributes $4,000, yet needs $9,500 before commissioning with a 10% deposit. A $16,000 job-funding limit supports only one such overlapping job, even where crew capacity allows two. At a 30% received deposit, two selected gaps total $13,000.
Use actual equipment quotes, qualified crew slots and accepted customer milestones to qualify growth. Set a procurement-cash limit alongside the delivery schedule. The Solar Installation Business planning guide develops the original worked case.
Planning guide