ToolJoltTools

Commercial Solar Sizing — Maharashtra

Bill-to-kW sizing for Maharashtra businesses facing India's highest commercial tariffs.

MSEDCL's commercial tariffs are among India's highest, so every kW you size correctly in Maharashtra offsets premium-priced power. The tool converts the monthly bill into consumption at your effective rate and sizes the array on the state's 5.3 kWh/m²/day resource — mind the June–September monsoon dip when checking the monthly split.

2.6 kW
Recommended system size
5
Panels needed
13 m²
Roof area
Monthly consumption421 kWh
Site yield4.8 kWh/kWp/day (India — Maharashtra)
Annual production4,550 kWh

421 kWh/month × 90% target ÷ (4.8 kWh/kWp/day × 30.4) = 2.6 kW. Round up to the nearest panel string your inverter supports.

Sources: Global Solar Atlas GHI — India — Maharashtra; NREL PVWatts loss model (PR ≈ 0.79 fixed rooftop)

Indicative estimates only, not financial or investment advice. Tariffs, subsidies and net-metering rules change — verify with your DISCOM, utility or installer before committing.

Use the free Commercial Solar Sizing — Maharashtra online — Bill-to-kW sizing for Maharashtra businesses facing India's highest commercial tariffs. Runs instantly in your browser: no signup, no upload, mobile-friendly.

About Commercial Solar Sizing — Maharashtra

MSEDCL's commercial tariffs are among India's highest, so every kW you size correctly in Maharashtra offsets premium-priced power. The tool converts the monthly bill into consumption at your effective rate and sizes the array on the state's 5.3 kWh/m²/day resource — mind the June–September monsoon dip when checking the monthly split.

How to use Commercial Solar Sizing — Maharashtra

  1. 1Enter your average monthly bill and the per-unit tariff from it.
  2. 2Pick your bill-offset target (100% = offset everything the rules allow).
  3. 3Read the recommended kW, panel count at your chosen wattage, and the roof area required.

Why use Commercial Solar Sizing — Maharashtra?

  • ✓Works backwards from the bill — the number you actually know
  • ✓Region-correct yield baked in, so the same bill gives different (correct) sizes in different cities
  • ✓Returns panel count and roof-area needs alongside the kW figure
  • ✓Offset target slider handles net-metering caps and partial-offset strategies

Frequently asked questions

How many solar panels do I need for my monthly bill?+

Divide the bill by the tariff to get monthly kWh, then divide by your region's per-kW monthly yield (≈110–135 kWh/kW in sunny India). A ₹4,000 bill at ₹8/unit (500 kWh) typically needs 3.5–4.5 kW — seven to nine 550 W panels. This calculator does exactly that math with local values.

How much roof area does a solar system need?+

Modern 540–580 W panels occupy ~2.6 m² each; with walkways and spacing, budget 80–100 sq ft (7.5–9.5 m²) per kW for flat roofs. A typical 3 kW home system needs roughly 250–300 sq ft of shade-free area.

Should I size for 100% of my bill?+

Usually 80–95%. Net-metering rules may cap capacity at your sanctioned load, slabs mean your last units are the cheapest to leave on the grid in some states, and consumption varies seasonally. Oversizing into low-value exports rarely pays — check your state's settlement rules.

What if my consumption grows after installing?+

Solar scales: leave inverter headroom (DC/AC ratio up to 1.3) or wall space for a second string. EV purchases and new ACs typically add 100–400 kWh/month — if those are planned within two years, size for them now; module additions later cost more per watt than doing it once.

Embed Commercial Solar Sizing — Maharashtra on your website

Want Commercial Solar Sizing — Maharashtraon your own site? Paste this snippet into any HTML page — it's free, with no API key or sign-up. The tool loads in an iframe and keeps working exactly as it does here.

Embed code
<iframe src="https://tooljolt.com/tools/commercial-solar-sizing-maharashtra" width="100%" height="640" style="border:1px solid #e5e7eb;border-radius:12px;max-width:680px" title="Commercial Solar Sizing — Maharashtra — ToolJolt" loading="lazy"></iframe>

Related tools

Related Energy tools

⚡

Rooftop Solar Calculator — Rajasthan

Estimate yearly kWh and bill savings from a rooftop solar system in Rajasthan using local irradiance (5.8 kWh/m²/day) and tariffs.

● Live
⚡

Rooftop Solar Calculator — Gujarat

Estimate yearly kWh and bill savings from a rooftop solar system in Gujarat using local irradiance (5.6 kWh/m²/day) and tariffs.

● Live
⚡

Rooftop Solar Calculator — Maharashtra

Estimate yearly kWh and bill savings from a rooftop solar system in Maharashtra using local irradiance (5.3 kWh/m²/day) and tariffs.

● Live
Sponsored