How much can your building save?
Three inputs, instant answer. Estimates use Maharashtra residential tariff slabs and typical Pune sunshine.
That is roughly 215 units a month.
This is an estimate, for indication only. How many solar units each flat can actually receive depends on multiple factors, such as roof area, system size, sunshine and how the building shares the generation.
Estimated saving per flat
₹2,276 / month
₹27,312 every year, for every flat
₹6.6 lakh
saved by the whole society, per year
40 kWp
approximate rooftop system size
47.2t
CO₂ avoided per year, like planting 2,360 trees
These are estimates based on simplified residential slab tariffs for MSEDCL (Maharashtra, ex-Mumbai) and average generation of 120 units per kWp per month (yearly average). Solar offsets your most expensive slab first, then the cheaper ones, which is why the per-unit saving is higher than the average tariff. Your actual numbers depend on your roof size, shading and tariff category. A Protostar Fusion system typically pays for itself in about 5 years for homes and about 3 years for offices, without subsidy, then keeps generating for decades. On top of these bill savings, Fusion also retires the UPS and its battery replacements. A free rooftop survey gives your building an exact quotation.