{"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\/sv\/costo-fotovoltaico-tetti-pubblici-capex-lcoe\/","title":{"rendered":"Hur mycket kostar det att solcellsanpassa offentliga tak? CAPEX, LCOE och ekonomiska variabler"},"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>Transparensmeddelande.<\/strong> V\u00e4rdena 5,68 GW, 7,53 TWh\/\u00e5r och 6,8 miljarder euro \u00e4r resultat som har deklarerats av Heiwit-modellen. Dokumentrevisionen den 4 augusti 2026 kunde inte replikera dem fullt ut eftersom det i det mottagna materialet saknades detaljerade dataupps\u00e4ttningar, kod, API-loggar, bootstrap-utdata, GSE-matchning och kassafl\u00f6de. Begr\u00e4nsningen \u00e4r redovisad, inte dold.<\/div>\n<section class=\"heiwit-pa-carousel-section\" aria-labelledby=\"heiwit-pa-carousel-4-title\">\n<h2 id=\"heiwit-pa-carousel-4-title\">Kapitlet p\u00e5 8 bilder<\/h2>\n<p class=\"heiwit-pa-carousel-intro\">Bl\u00e4ddra igenom det ursprungliga karusellen som skapats f\u00f6r det h\u00e4r kapitlet. Bilderna har optimerats f\u00f6r webben och laddats upp till WordPress mediabibliotek.<\/p>\n<div class=\"heiwit-pa-carousel\" data-heiwit-carousel tabindex=\"0\" aria-roledescription=\"carosello\" aria-label=\"Hur mycket kostar det att solcellsanpassa offentliga tak? CAPEX, LCOE och ekonomiska variabler\"><span class=\"heiwit-pa-carousel-badge\">Originalbilder \u00b7 reviderade uppgifter i texten<\/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=\"Bild 1 av 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=\"Bild 2 av 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=\"Bild 3 av 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=\"Bild 4 av 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=\"Bild 5 av 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=\"Bild 6 av 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=\"Bild 7 av 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=\"Bild 8 av 8\"><a class=\"heiwit-pa-carousel-report-link\" href=\"https:\/\/www.heiwit.com\/sv\/studio-potenziale-fotovoltaico-tetti-pubblica-amministrazione\/\" aria-label=\"G\u00e5 till studiens huvudsyra\"><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=\"Visa f\u00f6reg\u00e5ende bild\"><span aria-hidden=\"true\">\u2039<\/span><\/button><button class=\"heiwit-pa-carousel-control next\" type=\"button\" data-carousel-next aria-label=\"Visa n\u00e4sta bild\"><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=\"V\u00e4lj en bild\"><button type=\"button\" data-carousel-dot=\"0\" role=\"tab\" aria-label=\"G\u00e5 till bild 1\" aria-selected=\"true\"><\/button><button type=\"button\" data-carousel-dot=\"1\" role=\"tab\" aria-label=\"G\u00e5 till bild 2\" aria-selected=\"false\"><\/button><button type=\"button\" data-carousel-dot=\"2\" role=\"tab\" aria-label=\"G\u00e5 till bild 3\" aria-selected=\"false\"><\/button><button type=\"button\" data-carousel-dot=\"3\" role=\"tab\" aria-label=\"G\u00e5 till bild 4\" aria-selected=\"false\"><\/button><button type=\"button\" data-carousel-dot=\"4\" role=\"tab\" aria-label=\"G\u00e5 till bild 5\" aria-selected=\"false\"><\/button><button type=\"button\" data-carousel-dot=\"5\" role=\"tab\" aria-label=\"G\u00e5 till bild 6\" aria-selected=\"false\"><\/button><button type=\"button\" data-carousel-dot=\"6\" role=\"tab\" aria-label=\"G\u00e5 till bild 7\" aria-selected=\"false\"><\/button><button type=\"button\" data-carousel-dot=\"7\" role=\"tab\" aria-label=\"G\u00e5 till bild 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\">P\u00e5 smartphone swipar du \u00e5t sidorna. P\u00e5 tangentbordet anv\u00e4nder du h\u00f6ger och v\u00e4nster piltangent.<\/p>\n<div class=\"heiwit-pa-carousel-audit\"><strong>Revisionsnotering f\u00f6r karusellen.<\/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>Hela serien<\/strong><\/p>\n<ol>\n<li><a href=\"https:\/\/www.heiwit.com\/sv\/fotovoltaico-tetti-pubblici-pniec-2030\/\">Offentliga tak och PNIEC 2030<\/a><\/li>\n<li><a href=\"https:\/\/www.heiwit.com\/sv\/metodo-stima-potenziale-fotovoltaico-edifici-pubblici\/\">Hur byggdes modellen<\/a><\/li>\n<li><a href=\"https:\/\/www.heiwit.com\/sv\/potenziale-fotovoltaico-tetti-pa-568-gw-753-twh\/\">5,68 GW och 7,53 TWh: resultat och inneb\u00f6rd<\/a><\/li>\n<li><a href=\"https:\/\/www.heiwit.com\/sv\/costo-fotovoltaico-tetti-pubblici-capex-lcoe\/\">Offentlig ekonomi<\/a><\/li>\n<li><a href=\"https:\/\/www.heiwit.com\/sv\/pubblica-amministrazione-autosufficienza-energia-fotovoltaico\/\">Energi, egenf\u00f6rbrukning och utsl\u00e4pp<\/a><\/li>\n<li><a href=\"https:\/\/www.heiwit.com\/sv\/piano-operativo-fotovoltaico-edifici-pubblici\/\">Fr\u00e5n potential till handlingsplan<\/a><\/li>\n<\/ol>\n<\/div>\n<aside class=\"heiwit-pa-cta\">\n<h2>Se hela studien<\/h2>\n<p>Metodologi, resultat, begr\u00e4nsningar f\u00f6r granskningen och alla f\u00f6rdjupningar finns samlade p\u00e5 huvudstudiens sida om Heiwit.<\/p>\n<div class=\"heiwit-pa-cta-actions\"><a class=\"heiwit-pa-button\" href=\"https:\/\/www.heiwit.com\/sv\/studio-potenziale-fotovoltaico-tetti-pubblica-amministrazione\/\">G\u00e5 till hela studien<\/a><a class=\"heiwit-pa-button secondary\" href=\"https:\/\/www.heiwit.com\/sv\/kontakta-oss\/\">Kontakta Heiwit<\/a><\/div>\n<\/aside>\n<div class=\"heiwit-pa-sources\">\n<h2>K\u00e4llor och attributering<\/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 Nationell integrerad energi- och klimatplan, slutlig version 2024<\/a><\/li>\n<\/ul>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Modellens angivna CAPEX, de ekonomiska antagandena och vad som saknas f\u00f6r att publicera replikerbara IRR, LCOE och \u00e5terbetalningstider.<\/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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