Allego Investor Presentation Deck

Allego's Charging Business Model is Underpinned by Strong Unit Economics Average Site Economics Attractive returns without subsidies, and based on conservative utilization and margins (€ in '000, except €/kWh and sales in kWh) Utilization Rate Total MWh per site x Average Price (c per kWh) Charging Revenue per site Gross Profit per site Gross Margin (%) Total Capex Subsidies/HBE (carbon credits) Total Cash Flow Cumulative Cash Flow Average Payback Period (years) 10-year IRR Allego> Excluding Incentives Assumes Allego fully funds capex with no incentives Expansion of site through periodic investment of €100,000 in capex every 2 years Highly attractive 10-year IRR despite exclusion of subsidies 1 8.3% 254 55 € 143 € 40 28.0% (€ 327) (€ 287) (287) 4.2 29.7% Year 5 15.9% 662 57 € 377 € 186 49.5% (€ 100) € 86 68 10 16.0% 1,110 57 € 632 € 312 49.4% 0 €312 1,107 Including Incentives Total of €65,000 in subsidies received in 2022 to offset capital expenditures Price differential reflects upside captured through carbon credits; incremental ~€0.075 per kWh 1 6.0% 168 65 € 143 € 31 28.0% (€ 327) 84 (€ 203) (203) 3.1 49.7% Year 5 15.9% 662 57 € 377 € 186 49.5% (€ 100) 50 € 136 I 309 Note: Year 1 represents 2022E, Year 5 represents 2026E, and Year 10 represents 2031E. HBE credits of €19, €50, and €83 are estimated in years 1, 5, and 10 respectively Source: Company Information 10 16.0% 1,110 57 € 632 € 312 49.4% 0 83 €395 1,679 40

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