Finance
Financial projections, scenario modelling, and sensitivity analysis
System Configs
9
Battery + inverter combos
Tariffs
9
UK energy tariffs
Scenarios
3
Best / Likely / Worst
Projection
10-20yr
Financial models
Sensitivity
7
Variable categories
Portfolio
10-100
Homes modelled
Total CAPEX
Best£14,605
Likely£14,605
Worst£14,605
Payback Period
Best69m
Likely999m
Worst999m
10yr IRR
Best13.3%
Likely1000.0%
Worst1000.0%
10yr NPV (8%)
Best£4,031
Likely-£15,517
Worst-£25,225
Annual Net Revenue
Best£2,873
Likely-£111
Worst-£1,579
Status
Worst loss-making
69–999 months (likely: 999)
Net Revenue Over Time
Annual net revenue across three scenarios
Cumulative Cash Flow
Running total of net revenue vs CAPEX
Gross Revenue
Total revenue before costs
Battery Capacity Remaining
Degradation impact over time
NPV at Various Discount Rates (20yr)
| Discount Rate | Best | Likely | Worst |
|---|---|---|---|
| 5% | £30,502 | -£13,924 | -£33,986 |
| 8% | £19,164 | -£14,469 | -£29,932 |
| 10% | £13,760 | -£14,696 | -£27,926 |
| 12% | £9,551 | -£14,853 | -£26,316 |
| 15% | £4,832 | -£15,001 | -£24,446 |