SunnyWatly calculations are estimates only.
No professional advice
Nothing on SunnyWatly is financial, tax, legal, engineering, electrical, energy-retail or installation advice. Use qualified professionals and official sources where appropriate.
Assumptions matter
Solar production, savings, battery value, EV charging cost and appliance running cost depend on assumptions such as location, weather, shading, tariffs, feed-in rates, usage timing, hardware efficiency, network rules and installed cost.
Programs and rebates can change
Government programs, STC factors, eligibility requirements and certificate values can change. Verify current rules with the relevant government or regulator before acting.
No guarantee
Actual performance, bills, savings, payback and installation outcomes may differ materially from calculator estimates.