{"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":"costo-fotovoltaico-tetti-pubblici-capex-lcoe","status":"publish","type":"post","link":"https:\/\/www.heiwit.com\/nl\/costo-fotovoltaico-tetti-pubblici-capex-lcoe\/","title":{"rendered":"Hoeveel kost het om openbare daken te voorzien van zonnepanelen? CAPEX, LCOE en economische variabelen"},"content":{"rendered":"<div class=\"heiwit-pa-study\">\n<p class=\"heiwit-pa-lead\">Il modello economico preliminare dichiara circa 6,8 miliardi di euro di investimento. Il dato \u00e8 interessante, ma non va trasformato in promessa di rendimento finch\u00e9 non sono pubblicati cash flow, fonti dei prezzi e analisi di sensibilit\u00e0.<\/p>\n<div class=\"heiwit-pa-kpis\">\n<div><strong>6,8 mld \u20ac<\/strong><span>CAPEX aggregato dichiarato<\/span><\/div>\n<div><strong>25 anni<\/strong><span>orizzonte del modello<\/span><\/div>\n<div><strong>4%<\/strong><span>WACC di scenario<\/span><\/div>\n<div><strong>60%<\/strong><span>autoconsumo ipotizzato nel caso base<\/span><\/div>\n<\/div>\n<div class=\"heiwit-pa-warning\"><strong>Nota di trasparenza.<\/strong> I valori 5,68 GW, 7,53 TWh\/anno e 6,8 miliardi di euro sono risultati dichiarati dal modello Heiwit. L\u2019audit documentale del 4 agosto 2026 non ha potuto replicarli integralmente perch\u00e9 nel materiale ricevuto mancavano dataset di dettaglio, codice, log delle API, output bootstrap, matching GSE e cash flow. Il limite \u00e8 esposto, non nascosto.<\/div>\n<section class=\"heiwit-pa-carousel-section\" aria-labelledby=\"heiwit-pa-carousel-4-title\">\n<h2 id=\"heiwit-pa-carousel-4-title\">Il capitolo in 8 slide<\/h2>\n<p class=\"heiwit-pa-carousel-intro\">Scorri il carosello originale realizzato per questo capitolo. Le immagini sono state ottimizzate per il web e caricate nella Libreria media di WordPress.<\/p>\n<div class=\"heiwit-pa-carousel\" data-heiwit-carousel tabindex=\"0\" aria-roledescription=\"carosello\" aria-label=\"Hoeveel kost het om openbare daken te voorzien van zonnepanelen? CAPEX, LCOE en economische variabelen\"><span class=\"heiwit-pa-carousel-badge\">Slide originali \u00b7 dati auditati nel testo<\/span><\/p>\n<div class=\"heiwit-pa-carousel-viewport\" data-carousel-viewport>\n<div class=\"heiwit-pa-carousel-track\">\n<figure class=\"heiwit-pa-carousel-slide\" data-carousel-slide aria-label=\"Slide 1 di 8\"><img width=\"819\" height=\"1024\" src=\"https:\/\/www.heiwit.com\/wp-content\/uploads\/2026\/08\/slide-01-3-819x1024.webp\" class=\"heiwit-pa-carousel-image\" alt=\"Il fotovoltaico sui tetti pubblici e la convenienza economica\" loading=\"lazy\" decoding=\"async\" srcset=\"https:\/\/www.heiwit.com\/wp-content\/uploads\/2026\/08\/slide-01-3-819x1024.webp 819w, https:\/\/www.heiwit.com\/wp-content\/uploads\/2026\/08\/slide-01-3-240x300.webp 240w, https:\/\/www.heiwit.com\/wp-content\/uploads\/2026\/08\/slide-01-3-768x960.webp 768w, https:\/\/www.heiwit.com\/wp-content\/uploads\/2026\/08\/slide-01-3.webp 1200w\" sizes=\"(max-width: 819px) 100vw, 819px\" \/><figcaption><span>1\/8<\/span>Il fotovoltaico sui tetti pubblici e la convenienza economica<\/figcaption><\/figure>\n<figure class=\"heiwit-pa-carousel-slide\" data-carousel-slide aria-label=\"Slide 2 di 8\"><img width=\"819\" height=\"1024\" src=\"https:\/\/www.heiwit.com\/wp-content\/uploads\/2026\/08\/slide-02-3-819x1024.webp\" class=\"heiwit-pa-carousel-image\" alt=\"CAPEX aggregato dichiarato per saturare il potenziale stimato\" loading=\"lazy\" decoding=\"async\" srcset=\"https:\/\/www.heiwit.com\/wp-content\/uploads\/2026\/08\/slide-02-3-819x1024.webp 819w, https:\/\/www.heiwit.com\/wp-content\/uploads\/2026\/08\/slide-02-3-240x300.webp 240w, https:\/\/www.heiwit.com\/wp-content\/uploads\/2026\/08\/slide-02-3-768x960.webp 768w, https:\/\/www.heiwit.com\/wp-content\/uploads\/2026\/08\/slide-02-3.webp 1200w\" sizes=\"(max-width: 819px) 100vw, 819px\" \/><figcaption><span>2\/8<\/span>CAPEX aggregato dichiarato per saturare il potenziale stimato<\/figcaption><\/figure>\n<figure class=\"heiwit-pa-carousel-slide\" data-carousel-slide aria-label=\"Slide 3 di 8\"><img width=\"819\" height=\"1024\" src=\"https:\/\/www.heiwit.com\/wp-content\/uploads\/2026\/08\/slide-03-3-819x1024.webp\" class=\"heiwit-pa-carousel-image\" alt=\"NPV aggregato a 25 anni nello scenario originario\" loading=\"lazy\" decoding=\"async\" srcset=\"https:\/\/www.heiwit.com\/wp-content\/uploads\/2026\/08\/slide-03-3-819x1024.webp 819w, https:\/\/www.heiwit.com\/wp-content\/uploads\/2026\/08\/slide-03-3-240x300.webp 240w, https:\/\/www.heiwit.com\/wp-content\/uploads\/2026\/08\/slide-03-3-768x960.webp 768w, https:\/\/www.heiwit.com\/wp-content\/uploads\/2026\/08\/slide-03-3.webp 1200w\" sizes=\"(max-width: 819px) 100vw, 819px\" \/><figcaption><span>3\/8<\/span>NPV aggregato a 25 anni nello scenario originario<\/figcaption><\/figure>\n<figure class=\"heiwit-pa-carousel-slide\" data-carousel-slide aria-label=\"Slide 4 di 8\"><img width=\"819\" height=\"1024\" src=\"https:\/\/www.heiwit.com\/wp-content\/uploads\/2026\/08\/slide-04-3-819x1024.webp\" class=\"heiwit-pa-carousel-image\" alt=\"LCOE medio ponderato dichiarato nello scenario originario\" loading=\"lazy\" decoding=\"async\" srcset=\"https:\/\/www.heiwit.com\/wp-content\/uploads\/2026\/08\/slide-04-3-819x1024.webp 819w, https:\/\/www.heiwit.com\/wp-content\/uploads\/2026\/08\/slide-04-3-240x300.webp 240w, https:\/\/www.heiwit.com\/wp-content\/uploads\/2026\/08\/slide-04-3-768x960.webp 768w, https:\/\/www.heiwit.com\/wp-content\/uploads\/2026\/08\/slide-04-3.webp 1200w\" sizes=\"(max-width: 819px) 100vw, 819px\" \/><figcaption><span>4\/8<\/span>LCOE medio ponderato dichiarato nello scenario originario<\/figcaption><\/figure>\n<figure class=\"heiwit-pa-carousel-slide\" data-carousel-slide aria-label=\"Slide 5 di 8\"><img width=\"819\" height=\"1024\" src=\"https:\/\/www.heiwit.com\/wp-content\/uploads\/2026\/08\/slide-05-3-819x1024.webp\" class=\"heiwit-pa-carousel-image\" alt=\"Confronto tra costo del fotovoltaico e prezzo dell\u2019energia per la PA\" loading=\"lazy\" decoding=\"async\" srcset=\"https:\/\/www.heiwit.com\/wp-content\/uploads\/2026\/08\/slide-05-3-819x1024.webp 819w, https:\/\/www.heiwit.com\/wp-content\/uploads\/2026\/08\/slide-05-3-240x300.webp 240w, https:\/\/www.heiwit.com\/wp-content\/uploads\/2026\/08\/slide-05-3-768x960.webp 768w, https:\/\/www.heiwit.com\/wp-content\/uploads\/2026\/08\/slide-05-3.webp 1200w\" sizes=\"(max-width: 819px) 100vw, 819px\" \/><figcaption><span>5\/8<\/span>Confronto tra costo del fotovoltaico e prezzo dell\u2019energia per la PA<\/figcaption><\/figure>\n<figure class=\"heiwit-pa-carousel-slide\" data-carousel-slide aria-label=\"Slide 6 di 8\"><img width=\"819\" height=\"1024\" src=\"https:\/\/www.heiwit.com\/wp-content\/uploads\/2026\/08\/slide-06-3-819x1024.webp\" class=\"heiwit-pa-carousel-image\" alt=\"IRR e payback dichiarati dal modello economico originario\" loading=\"lazy\" decoding=\"async\" srcset=\"https:\/\/www.heiwit.com\/wp-content\/uploads\/2026\/08\/slide-06-3-819x1024.webp 819w, https:\/\/www.heiwit.com\/wp-content\/uploads\/2026\/08\/slide-06-3-240x300.webp 240w, https:\/\/www.heiwit.com\/wp-content\/uploads\/2026\/08\/slide-06-3-768x960.webp 768w, https:\/\/www.heiwit.com\/wp-content\/uploads\/2026\/08\/slide-06-3.webp 1200w\" sizes=\"(max-width: 819px) 100vw, 819px\" \/><figcaption><span>6\/8<\/span>IRR e payback dichiarati dal modello economico originario<\/figcaption><\/figure>\n<figure class=\"heiwit-pa-carousel-slide\" data-carousel-slide aria-label=\"Slide 7 di 8\"><img width=\"819\" height=\"1024\" src=\"https:\/\/www.heiwit.com\/wp-content\/uploads\/2026\/08\/slide-07-3-819x1024.webp\" class=\"heiwit-pa-carousel-image\" alt=\"Cluster economici indicati come pi\u00f9 redditizi\" loading=\"lazy\" decoding=\"async\" srcset=\"https:\/\/www.heiwit.com\/wp-content\/uploads\/2026\/08\/slide-07-3-819x1024.webp 819w, https:\/\/www.heiwit.com\/wp-content\/uploads\/2026\/08\/slide-07-3-240x300.webp 240w, https:\/\/www.heiwit.com\/wp-content\/uploads\/2026\/08\/slide-07-3-768x960.webp 768w, https:\/\/www.heiwit.com\/wp-content\/uploads\/2026\/08\/slide-07-3.webp 1200w\" sizes=\"(max-width: 819px) 100vw, 819px\" \/><figcaption><span>7\/8<\/span>Cluster economici indicati come pi\u00f9 redditizi<\/figcaption><\/figure>\n<figure class=\"heiwit-pa-carousel-slide\" data-carousel-slide aria-label=\"Slide 8 di 8\"><a class=\"heiwit-pa-carousel-report-link\" href=\"https:\/\/www.heiwit.com\/nl\/studio-potenziale-fotovoltaico-tetti-pubblica-amministrazione\/\" aria-label=\"Vai alla pagina principale dello studio\"><img width=\"819\" height=\"1024\" src=\"https:\/\/www.heiwit.com\/wp-content\/uploads\/2026\/08\/slide-08-3-819x1024.webp\" class=\"heiwit-pa-carousel-image\" alt=\"Matrice di priorit\u00e0 economica e realizzabilit\u00e0\" loading=\"lazy\" decoding=\"async\" srcset=\"https:\/\/www.heiwit.com\/wp-content\/uploads\/2026\/08\/slide-08-3-819x1024.webp 819w, https:\/\/www.heiwit.com\/wp-content\/uploads\/2026\/08\/slide-08-3-240x300.webp 240w, https:\/\/www.heiwit.com\/wp-content\/uploads\/2026\/08\/slide-08-3-768x960.webp 768w, https:\/\/www.heiwit.com\/wp-content\/uploads\/2026\/08\/slide-08-3.webp 1200w\" sizes=\"(max-width: 819px) 100vw, 819px\" \/><\/a><figcaption><span>8\/8<\/span>Matrice di priorit\u00e0 economica e realizzabilit\u00e0<\/figcaption><\/figure>\n<\/div>\n<\/div>\n<p><button class=\"heiwit-pa-carousel-control prev\" type=\"button\" data-carousel-prev aria-label=\"Mostra la slide precedente\"><span aria-hidden=\"true\">\u2039<\/span><\/button><button class=\"heiwit-pa-carousel-control next\" type=\"button\" data-carousel-next aria-label=\"Mostra la slide successiva\"><span aria-hidden=\"true\">\u203a<\/span><\/button><\/p>\n<div class=\"heiwit-pa-carousel-footer\">\n<div class=\"heiwit-pa-carousel-dots\" data-carousel-dots role=\"tablist\" aria-label=\"Seleziona una slide\"><button type=\"button\" data-carousel-dot=\"0\" role=\"tab\" aria-label=\"Vai alla slide 1\" aria-selected=\"true\"><\/button><button type=\"button\" data-carousel-dot=\"1\" role=\"tab\" aria-label=\"Vai alla slide 2\" aria-selected=\"false\"><\/button><button type=\"button\" data-carousel-dot=\"2\" role=\"tab\" aria-label=\"Vai alla slide 3\" aria-selected=\"false\"><\/button><button type=\"button\" data-carousel-dot=\"3\" role=\"tab\" aria-label=\"Vai alla slide 4\" aria-selected=\"false\"><\/button><button type=\"button\" data-carousel-dot=\"4\" role=\"tab\" aria-label=\"Vai alla slide 5\" aria-selected=\"false\"><\/button><button type=\"button\" data-carousel-dot=\"5\" role=\"tab\" aria-label=\"Vai alla slide 6\" aria-selected=\"false\"><\/button><button type=\"button\" data-carousel-dot=\"6\" role=\"tab\" aria-label=\"Vai alla slide 7\" aria-selected=\"false\"><\/button><button type=\"button\" data-carousel-dot=\"7\" role=\"tab\" aria-label=\"Vai alla slide 8\" aria-selected=\"false\"><\/button><\/div>\n<div class=\"heiwit-pa-carousel-counter\" aria-live=\"polite\"><span data-carousel-current>1<\/span><span aria-hidden=\"true\"> \/ <\/span>8<\/div>\n<\/div>\n<p class=\"heiwit-pa-carousel-hint\">Su smartphone scorri lateralmente. Da tastiera usa le frecce destra e sinistra.<\/p>\n<div class=\"heiwit-pa-carousel-audit\"><strong>Nota di audit del carosello.<\/strong> CAPEX, NPV, LCOE, IRR e payback presenti nelle slide appartengono al modello economico originario. Non sono considerati validati finch\u00e9 non saranno disponibili cash flow, formule, fonti dei prezzi e analisi di sensibilit\u00e0.<\/div>\n<\/div>\n<\/section>\n<h2>Le ipotesi dichiarate<\/h2>\n<p>Il modello preliminare utilizza CAPEX unitari compresi tra 1.600 e 950 \u20ac\/kWp in funzione della taglia, OPEX annuo pari all\u20191,2% del CAPEX, assicurazione 0,3%, degrado 0,5% annuo, WACC 4%, autoconsumo 60%, energia autoconsumata valorizzata 180 \u20ac\/MWh ed energia immessa 120 \u20ac\/MWh.<\/p>\n<p>Sono ipotesi di scenario, non prezzi garantiti. Devono essere datate e collegate a fonti. Mancano inoltre, nella documentazione auditata, il trattamento di IVA e fiscalit\u00e0, costi di connessione, progettazione, gare, sostituzione inverter, indisponibilit\u00e0, curtailment e valore residuo.<\/p>\n<h2>Perch\u00e9 la taglia cambia l\u2019economia<\/h2>\n<p>Un grande ospedale pu\u00f2 ospitare centinaia di kWp e beneficiare di economie di scala. Un municipio da poche decine di kWp sostiene costi unitari pi\u00f9 elevati. Anche la producibilit\u00e0 locale incide: a parit\u00e0 di tetto, il Centro-Sud pu\u00f2 produrre pi\u00f9 energia annua. Ma la redditivit\u00e0 non dipende soltanto dall\u2019irraggiamento: contano il profilo di consumo, il prezzo evitato, la capacit\u00e0 di immettere in rete e la continuit\u00e0 operativa.<\/p>\n<h2>Perch\u00e9 IRR, LCOE e payback sono sospesi<\/h2>\n<p>La versione originaria riportava LCOE, IRR e tempi di ritorno per cluster. L\u2019audit non ha potuto replicarli perch\u00e9 il cash flow non era disponibile. Di conseguenza questi valori non vengono usati come raccomandazione di investimento negli articoli. Il claim \u00abNPV oltre il doppio del capitale\u00bb \u00e8 stato eliminato: anche assumendo 10 miliardi di NPV e 6,8 miliardi di CAPEX, il rapporto \u00e8 circa 1,47, non superiore a due.<\/p>\n<h2>Il modello economico che va pubblicato<\/h2>\n<ul>\n<li>fonti e data di ogni costo unitario;<\/li>\n<li>cash flow annuale per cluster e aggregato;<\/li>\n<li>quota di autoconsumo basata su profili orari distinti;<\/li>\n<li>scenari su prezzi dell\u2019energia e remunerazione dell\u2019immissione;<\/li>\n<li>sensitivity su CAPEX, WACC, degrado e sostituzione inverter;<\/li>\n<li>costi di connessione, progettazione, gara, assicurazione e manutenzione;<\/li>\n<li>trattamento coerente di imposte, IVA, incentivi e valore residuo.<\/li>\n<\/ul>\n<h2>Come leggere oggi i 6,8 miliardi<\/h2>\n<p>Il numero va interpretato come ordine di grandezza prodotto dal modello. Diviso per 5,68 GW equivale a circa 1.197 \u20ac\/kWp medi, un valore compatibile con una combinazione di impianti piccoli e grandi ma non sufficiente a validare il budget. La vera domanda non \u00e8 soltanto \u00abquanto costa\u00bb, ma quali portafogli di edifici permettono di ridurre costi transazionali e aumentare autoconsumo e bancabilit\u00e0.<\/p>\n<h2>Il potenziale industriale<\/h2>\n<p>Una pipeline nazionale potrebbe essere strutturata per lotti omogenei: ospedali, scuole di grande superficie, edifici amministrativi e piccoli comuni. Questo consentirebbe capitolati standard, acquisti aggregati, contratti di manutenzione e finanza di progetto. La priorit\u00e0 economica definitiva, per\u00f2, deve seguire un modello replicabile.<\/p>\n<div class=\"heiwit-pa-series\"><strong>Serie completa<\/strong><\/p>\n<ol>\n<li><a href=\"https:\/\/www.heiwit.com\/nl\/fotovoltaico-tetti-pubblici-pniec-2030\/\">Tetti pubblici e PNIEC 2030<\/a><\/li>\n<li><a href=\"https:\/\/www.heiwit.com\/nl\/metodo-stima-potenziale-fotovoltaico-edifici-pubblici\/\">Come \u00e8 stato costruito il modello<\/a><\/li>\n<li><a href=\"https:\/\/www.heiwit.com\/nl\/potenziale-fotovoltaico-tetti-pa-568-gw-753-twh\/\">5,68 GW e 7,53 TWh: risultati e significato<\/a><\/li>\n<li><a href=\"https:\/\/www.heiwit.com\/nl\/costo-fotovoltaico-tetti-pubblici-capex-lcoe\/\">Economia dell\u2019intervento<\/a><\/li>\n<li><a href=\"https:\/\/www.heiwit.com\/nl\/pubblica-amministrazione-autosufficienza-energia-fotovoltaico\/\">Energia, autoconsumo ed emissioni<\/a><\/li>\n<li><a href=\"https:\/\/www.heiwit.com\/nl\/piano-operativo-fotovoltaico-edifici-pubblici\/\">Dal potenziale al piano operativo<\/a><\/li>\n<\/ol>\n<\/div>\n<aside class=\"heiwit-pa-cta\">\n<h2>Consulta lo studio completo<\/h2>\n<p>Metodologia, risultati, limiti dell\u2019audit e tutti gli approfondimenti sono raccolti nella pagina principale dello studio Heiwit.<\/p>\n<div class=\"heiwit-pa-cta-actions\"><a class=\"heiwit-pa-button\" href=\"https:\/\/www.heiwit.com\/nl\/studio-potenziale-fotovoltaico-tetti-pubblica-amministrazione\/\">Vai allo studio completo<\/a><a class=\"heiwit-pa-button secondary\" href=\"https:\/\/www.heiwit.com\/nl\/contact-met-ons-opnemen\/\">Contatta Heiwit<\/a><\/div>\n<\/aside>\n<div class=\"heiwit-pa-sources\">\n<h2>Fonti e attribuzioni<\/h2>\n<ul>\n<li><a href=\"https:\/\/www.gse.it\/documenti_site\/Documenti%20GSE\/Rapporti%20statistici\/Solare%20Fotovoltaico%20-%20Rapporto%20Statistico%202024.pdf\" target=\"_blank\" rel=\"noopener\">GSE \u2014 Rapporto Statistico Solare Fotovoltaico 2024<\/a><\/li>\n<li><a href=\"https:\/\/www.mase.gov.it\/portale\/documents\/d\/guest\/pniec_2024_revfin_01072024-pdf\" target=\"_blank\" rel=\"noopener\">MASE \u2014 Piano Nazionale Integrato per l\u2019Energia e il Clima, versione definitiva 2024<\/a><\/li>\n<\/ul>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>De door het model gedeclareerde CAPEX, de economische hypothesen en wat ontbreekt om repliceerbare IRR, LCOE en terugverdientijd te publiceren.<\/p>","protected":false},"author":1,"featured_media":284742,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","content-type":"","footnotes":""},"categories":[122],"tags":[137,140,88,139,138],"class_list":["post-284751","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-studi-e-ricerche","tag-capex","tag-esco","tag-fotovoltaico","tag-investimenti-pubblici","tag-lcoe"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - 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