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Egypt-specific economics calculator for Cairo, Alexandria, Giza, and other EEHC distribution company areas. Input your monthly consumption, PV array size, and solar self-consumption ratio to compute current EgyptERA progressive-tariff bill, new bill with solar, export revenue, and total payback economics under the EgyptERA Decree 1257/2017 net-metering framework.
For full deployment context see the Egypt country guide covering post-IMF tariff restructuring, EEHC application pathway, and Saharan-margin irradiance reality.
Typical Cairo middle-class: 400-700 kWh. Premium villa with AC: 800-1,500 kWh. Apartment small: 200-400 kWh.
Current marginal bracket: 351-650 kWh at EGP 1.4/kWh
Cairo annual generation ~1,700 kWh/kWp (Saharan-margin irradiance). 5 kWp β 8,500 kWh/year β 700 kWh/month.
Higher with battery storage + daytime load shifting. No battery: ~40-50%. With battery: 65-85%.
Estimated system cost: ~USD 8,000 (~EGP 240,000).
Payback period: ~25.1 years from total annual benefit (bill savings + export revenue).
The progressive bracket structure means high-consumption households see substantially better payback β every kWh self-consumed at the upper bracket displaces EGP 1.60-2.20/kWh tariff rather than the EGP 0.58/kWh lifeline bracket.
Detailed case study for Cairo/Casablanca premium installations.