Eine Studie von Zendure zeigt: Vorschriften, Mietverträge und ein als kompliziert empfundener Installationsprozess bremsen die Verbreitung von Solarenergie

Zendure’s Umfrage (Dez. 2025, n=835) zeigt starkes Verbraucherinteresse an privaten Solaranlagen: 76% der Haushalte ohne Anlage haben „starkes Interesse“, aber 29% der Mieter sind unsicher bei Installationsrechten, 27% fühlen sich von Vorschriften/Genehmigungen überfordert und 22% sehen die Installation als zu kompliziert. Gleichzeitig gilt Einfachheit als Haupttreiber: 53% der bestehenden Solarnutzer nannten die einfache Selbstinstallation als entscheidenden Kaufgrund. Die Studie betont, dass seit 2024 regulatorisch mehr Klarheit geschaffen wurde (u.a. Mietrecht, Einspeisegrenze 800W, Registrierung in einem vereinfachten Register), der Engpass damit eher informativ/beraterisch als regulatorisch ist.

Analysis

This is a conversion-friction story, not a demand-collapse story. The investable implication is that the bottleneck is no longer policy permission but consumer onboarding, which shifts value toward companies that can simplify setup, explain compliance, and bundle energy management into one SKU. In listed proxies, that is more supportive of integrated home-energy platforms and software-led storage names than of commodity panel/module exposure; the market should not pay up for raw demand anecdotes unless they translate into actual attach rates.

Near term, the survey itself is not a catalyst. The next 1-3 months matter only if installers, marketplaces, or utilities turn the latent interest into measured registrations/orders; otherwise the market will keep treating German residential solar as a slow-growth funnel with high churn at the decision stage. Over 6-18 months, dynamic tariffs and storage optimization increase the premium for simple, automated energy management, which should widen the gap between easy-to-buy ecosystems and fragmented hardware vendors.

Contrarian view: consensus may be overestimating how much regulation alone can unlock. If the industry keeps forcing consumers to choose among too many options, adoption can stay muted even after legal barriers fall; that makes education, channel design, and product architecture the real competitive moat. Falsifiers are straightforward: no improvement in German install/registration data over the next two earnings cycles, or a renewed deterioration in residential payback math from weaker power prices/subsidy changes.

Key Decisions for Investors

• No immediate position in AERA; treat this as a watch item until German consumer conversion data turns up in 1-2 quarters.
• On any pullback, consider ENPH as the cleaner long versus the residential solar basket: the thesis is that simplified user experience and energy-management software capture share when complexity is the binding constraint. Use a 3-6 month horizon; invalidate if Europe bookings/attach rates do not inflect next earnings cycle.
• Relative-value idea: long ENPH / short SEDG for 1-3 months if you expect the market to reward simplicity and bundled onboarding over hardware-led differentiation. Cover the short if SEDG shows better channel pull-through or if German installs accelerate broadly.
• Avoid adding to broad solar ETF exposure (e.g., TAN) until actual installation data, not survey intent, confirms conversion; the risk/reward is poor if the bottleneck remains consumer decision friction.
• Set an alert on German residential install registrations and balcony-solar submissions over the next two reporting periods; a clear inflection would justify rotating into the ecosystem winners.