NEXT
Battery storage
Arbitrage, backup value, cycles, degradation, and paired-solar economics.
Prototype desk
Alternative investments
Start with solar panels. Compare cash invested today with energy saved, export income, payback, NPV, and the share of your net worth tied to one illiquid asset.
A net-worth lens
An alternative asset should not be judged only by yield. It also changes liquidity, concentration, operating risk, and the mix of assets behind your personal net worth.
ReturnCash saved and earned over the full useful life.
RiskGeneration, tariffs, maintenance, and technology degradation.
Portfolio fitHow much of your net worth becomes illiquid and concentrated.
Solar model
All money inputs are EUR. This prototype stores nothing and performs the calculation only in your browser.
Built to expand
Solar is the first asset model. The desk can later add batteries, private credit, farmland, parking, royalties, and collectibles without changing the core net-worth framework.
LATER
Income alternatives
Private credit, parking, farmland, and royalties with liquidity and default risk.
FRAMEWORK
Portfolio fit
Return, risk, liquidity, concentration, cash yield, and correlation in one scorecard.
Prototype only—not an installation quote or investment recommendation. Verify roof, permits, grid terms, taxes, financing, insurance, and replacement costs with qualified professionals.