{"id":284751,"date":"2026-08-04T15:49:36","date_gmt":"2026-08-04T13:49:36","guid":{"rendered":"https:\/\/www.heiwit.com\/?p=284751"},"modified":"2026-08-04T17:17:13","modified_gmt":"2026-08-04T15:17:13","slug":"photovoltaic-cost-public-roofs-capex-lcoe","status":"publish","type":"post","link":"https:\/\/www.heiwit.com\/en\/costo-fotovoltaico-tetti-pubblici-capex-lcoe\/","title":{"rendered":"How much does it cost to solarise public roofs? CAPEX, LCOE and economic variables"},"content":{"rendered":"
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The preliminary economic model states an investment of approximately 6.8 billion euros. The figure is interesting, but it must not be turned into a promise of return until cash flows, price sources and sensitivity analyses are published.<\/p>\n

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\u20ac6.8bn<\/strong>declared aggregate CAPEX<\/span><\/div>\n
25 years old<\/strong>model horizon<\/span><\/div>\n
4%<\/strong>Scenario WACC<\/span><\/div>\n
60%<\/strong>self-consumption assumed in the base case<\/span><\/div>\n<\/div>\n
Transparency notice.<\/strong> The values 5.68 GW, 7.53 TWh\/year and 6.8 billion euros are results declared by the Heiwit model. The document audit of 4 August 2026 was unable to replicate them in full because detailed datasets, code, API logs, bootstrap outputs, GSE matching and cash flow were missing from the material received. The limitation is stated, not hidden.<\/div>\n
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