Top 3 Solar Calculators Malaysia 2026 | Estimate Savings, ROI & System Size

Solar100 Malaysia Solar Calculator Guide 2026

Top 3 Solar Calculators Malaysia 2026 | Estimate Savings, ROI & System Size

Before installing a solar system, most homeowners and business owners want to know one thing: How much can I save? A good solar calculator helps estimate monthly savings, recommended system size, expected ROI and long-term electricity bill reductions before requesting quotations.

ROI Estimate Payback Period

kWp Recommended System Size

Bill Savings Monthly Savings Estimate

Compare Quotes Compare Solar Installers

Why Use a Solar Calculator Before Installing Solar?

A solar calculator helps you understand whether solar is suitable for your property before speaking to an installer. By analysing electricity bills, roof suitability and estimated system size, you can gain a clearer understanding of your solar investment potential.

For homeowners, SMEs and factories, solar calculators provide useful guidance when comparing solar panel brands, inverter options, warranties, installation costs and projected return on investment.

Latest Solar Incentive: SuRIA Home Rebate 2026

If you are planning a residential solar installation, it is highly recommended to review the latest SuRIA Home rebate programme, including rebate amounts, eligibility requirements, quota availability and installation timelines.

Read Latest SuRIA Home Guide

Top 3 Solar Calculators Malaysia 2026

Rank #1

🥇 Solar100 Solar Savings Calculator

Best For: Residential, Commercial, Factory Owners and Solar ATAP Users.

Suitable Users Homeowners, Businesses, Factories, Solar ATAP Users

Key Estimates Monthly Savings, ROI, System Size, Lifetime Savings

Solar100 Highlight Designed Around Malaysian Solar Buying Decisions

Solar100 Review: The Solar100 Calculator is designed to help users quickly understand whether solar is suitable for their property and estimate potential savings before requesting professional quotations.

Rank #2

🥈 TNB Solar Calculator

Best For: Residential Users Looking for Basic Solar Savings Estimates.

Suitable Users Residential Electricity Consumers

Key Estimates Basic Savings, Solar Capacity and Energy Generation

Main Advantage Official Reference Source

Solar100 Review: The TNB Solar Calculator is a useful starting point for homeowners looking to understand the approximate savings from installing a solar PV system.

Rank #3

🥉 SEDA Malaysia Solar Calculator

Best For: Policy Research, Technical Users and Solar Industry Professionals.

Suitable Users Researchers, Technical Users, Solar Enthusiasts

Key Estimates PV Performance, Generation Estimates, Policy Reference

Main Advantage Technical and Policy-Oriented Data

Solar100 Review: SEDA’s calculator is better suited for technical evaluation and policy reference. It provides useful information for users who want deeper insights into Malaysia’s solar ecosystem.

Solar Calculator Comparison

Feature	Solar100	TNB	SEDA
Beginner Friendly	★★★★★	★★★★☆	★★★☆☆
Residential Users	Excellent	Excellent	Reference Only
Commercial Projects	Good	Limited	Technical Reference
Industrial Projects	Suitable	Limited	Suitable
ROI Analysis	Strong	Basic	Technical
Monthly Savings Estimate	Clear	Clear	Technical Focus
SuRIA Home Reference	Integrated With Solar100 Content	External Research Required	Policy Reference Only

4 Things to Know Before Installing Solar

1. Don't Focus Only on Price

Compare panel brands, inverter quality, warranties, installation workmanship and after-sales support—not just installation cost.

2. Understand Available Incentives

Review SuRIA Home rebates, Solar ATAP requirements, quotas and application timelines before making a decision.

3. ROI Matters More Than Initial Cost

A higher-quality solar system may cost more initially but deliver significantly greater savings over 20–25 years.

4. Compare at Least 3 Quotations

Different installers may recommend different system designs, brands, warranties and installation approaches.

Want to Know If Solar Is Worth It for Your Property?

Speak with a Solar100 Solar Expert to estimate system size, ROI, electricity savings, SuRIA Home rebate eligibility and compare quotations from Solar100 Verified installers.

WhatsApp: 011-5653 8147

WhatsApp Solar Expert

Jun 04,2026