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Solar Panel Size Calculator

Monthly units, daily energy ya appliance load se required solar kW, panel count, roof area, inverter, battery backup, generation, bill saving aur payback ka complete estimate nikalein.

Solar Requirement Bharein

Energy Requirement

Calculation Method Input typeMonthly Electricity UnitsDaily Energy NeedAppliance Load and Hours

System Type Solar setupOn-Grid SolarHybrid SolarOff-Grid Solar

Monthly Consumption Units/month

Daily Energy Need kWh/day

Connected Appliance Load Watt

Daily Usage of Load Hours/day

Solar Panel aur Roof

Peak Sun Hours Hours/day

Total System Loss Percentage

Future Load Margin Percentage

One Panel Rating Watt

Panel Length Metre

Panel Width Metre

Usable Roof Area Square metre

Spacing/Access Margin Percentage

Inverter aur Battery Backup

Inverter Safety Margin Percentage

Power Factor 0.5 to 1.0

Backup Load Watt

Backup Duration Hours

Battery Bank Voltage Volt12 V24 V48 V96 V

Battery Usable DoD Percentage

Battery/Inverter Efficiency Percentage

One Battery Capacity Ah

Cost, Subsidy aur Environment

Electricity Rate ₹/unit

Installed Cost ₹/kW

Subsidy/Discount Percentage

Grid CO2 Factor kg/kWh

Please sabhi fields mein valid values bharein. Sun hours zero nahi ho sakte aur percentage limits ke andar hone chahiye.

Recommended Solar System

Suggested Installed Solar Size3.30 kW6 x 550 W Panels | On-Grid Solar

PANEL COUNT6 Panels

ROOF AREA18.55 m2

MONTHLY GEN.396 Units

PAYBACK5.21 Years

Base Daily Energy Need10.00 kWh/Day

Required Array before Rounding2.88 kW

Installed Panel Capacity3.30 kW

Roof Fit StatusFits: 9 Panels Space

Suggested Inverter Size3.47 kVA

Usable Battery Requirement5.56 kWh / 116 Ah

Suggested Battery Count1 x 150 Ah

Generation Daily / Yearly13.20 / 4,818 kWh

Solar Energy Coverage100.0%

Monthly / Yearly Bill Saving₹2,400 / ₹28,800

Gross / Net Project Cost₹1,98,000 / ₹1,58,400

Estimated CO2 Reduction3.37 Tonnes/Year

Mobile aur desktop par direct single-page A4 PDF download hoti hai.

Solar Panel Size Calculator ke features

3 Sizing Methods

Panel Count

Roof Fit Check

Inverter kVA

Battery Ah

Generation

Cost & Payback

CO2 Reduction

Yeh calculator home, shop aur small commercial solar planning ke initial estimate ke liye bana hai. Monthly electricity units, daily kWh ya connected load aur hours mein se suitable method choose kar sakte hain. 1kW solar panel ki daily aur monthly unit generation samajhne ke liye hamara guide 1kW Solar Panel Kitni Unit Banata Hai? zaroor padhein.

Solar size ka formula

Required solar kW = daily energy need with future margin divided by peak sun hours aur usable system efficiency. Panel count ko hamesha next whole panel tak round kiya jata hai. Pure ghar ka bijli bill zero karne ke aur practical upayon ke liye Ghar Ka Bijli Bill Kam Karne Ke Tarike guide dekhein.

⚡ Useful Solar Calculators & Guides on BijliBee

☀️ Detailed Guide: 1kW Solar Panel Kitni Unit Banata Hai? (Daily, Monthly & Yearly Calculation) 💰 Solar Savings Calculator (Calculate Monthly Savings & Net Cost) 📈 Solar Payback Calculator (Check ROI & Investment Recovery) 🏠 Rooftop Area Calculator (Check Usable Shadow-Free Roof Space) 💡 Detailed Guide: Ghar Ka Bijli Bill Kam Karne Ke 10 Asan Tarike (Proven Saving Tips) 🔌 Detailed Guide: Ghar Mein Sabse Zyada Bijli Khane Wale Appliances (Wattage & Units List) ⚠️ Detailed Guide: Bijli Bill Achanak Zyada Kyon Aa Raha Hai? (Karan Aur Bachat Ke Upay) ❄️ Detailed Guide: 1.5 Ton AC 1 Ghante Me Kitna Unit Khata Hai? ⚡ Home Load Calculator (Check Required Connection Load) 🔋 Inverter Backup Calculator (Calculate Battery Ah & Backup Hours) 🔌 State Wise Electricity Bill Calculator (Calculate Total Bill)

Solar Panel Size Calculator FAQs

Monthly units se solar kW kaise nikalta hai?

Monthly units ko 30 se divide karke daily energy milti hai. Future margin add karke sun hours aur system loss ke through required array calculate hota hai.

On-grid system mein battery zaroori hai?

Normal on-grid system battery ke bina hota hai aur grid outage mein safety ke liye band ho sakta hai. Battery result backup planning reference ke liye diya gaya hai; hybrid ya off-grid mein useful hai.

Roof area result mein spacing include hai?

Haan. Panel length x width ke saath entered spacing/access margin add hota hai. Structure, walkways aur local fire rules ke liye installer survey zaroori hai. Chhat ka area nikalne ke liye hamara Rooftop Area Calculator use karein.

Subsidy kitni milegi?

Calculator sirf entered percentage use karta hai. Actual eligibility, limits aur amount current government scheme, consumer category aur approved vendor par depend karte hain.

Kya mobile PDF chalegi?

Haan. Button Android print service open nahi karta; direct BijliBee branded single-page A4 PDF download karta hai.

Disclaimer: Yeh preliminary estimate hai, final engineering design ya quotation nahi. Actual sizing shadow analysis, location irradiance, sanctioned load, phase, inverter limits, panel datasheet, battery chemistry, wiring, structure, safety standards, DISCOM rules aur current subsidy policy par depend karti hai. Installation certified professional se karayein.

WRITTEN & REVIEWED BY

Satyam Kumar Yadav

Founder and Creator of BijliBee. Satyam electricity calculations, practical energy-saving tools aur simple Hinglish guides ko aam users ke liye aasan banane par kaam karte hain.