Powering a Sustainable Future with Solar Energy
OpenSys Technologies is now officially live on buySolar!
Bringing trusted residential and commercial solar solutions right to your doorstep.
To mark this milestone, enjoy an exclusive launch promotion on residential solar—available for a limited time.
Make the switch today with OpenSys Technologies.
Zero Interest, Full Power
Pay Monthly for Up to 60 Months—0% Interest on Credit Card Instalments
Harness the power of the sun now and pay gradually over time, interest-free. It's never been easier to invest in solar.
*Customers who opt for 60-month instalment payments using Standard Chartered credit cards will not be eligible for the 10% rebate.
Get 10% OFF Your Solar Installation!
Switch to solar with OpenSys Technologies and enjoy these valuable benefits:
- 10% Off for All Banks' Credit Card & FPX Transactions
- Up to 60-month 0% Credit Card Instalment Payment Plan
- Free 1-Year Insurance (RM20,000 coverage) for Your Solar PV System
- 12-Year Product Warranty on Solar PV Modules
- 30-Year Linear Output Performance Warranty on Solar PV Modules
- 10-Year Product Warranty on Solar Inverter Modules
- 10-Year Standard Warranty on Mounting System Against Corrosion
- 3-Year Workmanship Warranty
- 3-Year Free Maintenance
*T&Cs Apply.
Future-Proof Your Business with Smart Solar Solutions
OpenSys Technologies delivers innovative commercial solar solutions to help businesses cut energy costs, boost sustainability, and maximise long-term savings .
With flexible financing options, premium warranties, and comprehensive insurance solutions, buySolar and OpenSys Technologies are empowering businesses to achieve energy independence while fulfilling corporate sustainability goals.
Why Choose OpenSys Technologies as Your Solar Provider?
When it comes to solar energy, expertise is key. OpenSys Technologies combines cutting-edge solar technology with a fintech-driven approach, ensuring you receive the perfect blend of innovation and reliability.
Unmatched Expertise
Harnessing data-driven, smart-energy solutions for optimal solar adoption.
End-to-End Solar Solutions
A seamless experience from consultation to installation and after-sales support.
A Trusted & Transparent Brand
Built on trust, transparency, and a customer-first approach.
Premium Products & Warranties
High-quality solar components backed by long-term warranties for lasting performance.
Flexible & Affordable Financing
Making solar accessible with 0% instalment plans and financing options.
See How Much You Can Save
Notice
This is a ballpark estimate based on current electricity rates. These figures are based on the earlier NEM 3.0 program, which ended on 30 June 2025
An updated calculator will be released shortly.
Solar Savings Calculator
Know Your Savings and Affordability
Current Electricity Usage i 
Desired Solar System Size
★ Recommended
Desired Installment Term
Current electricity bill
New electricity bill
Monthly savings
Estimated cost
Easy Payment
Installment (0% p.a)
Per Month
Net Investment
For Installment Term
Per Month
per mth
Protecting Our Planet Starts With You
5 kWpSolar PV installed
4Carbon DioxideMetric tonnes avoidance per year
83Tree SeedlingsTrees grown for 10 years
1Passenger CarsCars taken off road for 1 yearDisclaimer
This solar calculator provides an indicative estimate only and is not a quotation, guarantee, or bill prediction; calculations are based on your inputs and simplified assumptions including estimated solar generation, an assumed self-consumption ratio (for example, 70% self-consumed and 30% exported), and a standard billing period; for Solar ATAP scenarios, any export credit shown is an estimate and may be limited by programme rules and billing constraints (including MAQ and monthly netting/eligibility conditions) and may be valued using an assumed SMP or credit rate that can vary by billing cycle and market conditions; this estimate may exclude or simplify bill components including but not limited to fixed charges, maximum demand charges (where applicable), ICPT/AFA adjustments, retail surcharges, levies, SST, penalties, and other service-related fees; actual savings, bill amounts, and payback period may differ materially due to consumption patterns, site conditions, equipment performance, installation design, approvals, and changes in tariffs or programme terms; buySolar makes no warranties and accepts no responsibility or liability for any loss or decision made based on this calculator, and users should refer to their official TNB bill and obtain a site assessment and formal proposal for accuracy.
Terms and Conditions: -
- The 10% discount is applicable only for residential solar systems purchased via https://www.buysolar.my/.
- To enjoy the 10% discount, payment must be made via credit card (any bank) or FPX bank transfer.
- Customers who opt for the 60-month instalment plan with Standard Chartered credit cards are not eligible for the 10% discount.
- The cashback rewards are as follows:
- Installations between 5kWp – 10kWp: RM1,000 cashback
- Installations above 10kWp – 18kWp: RM2,000 cashback
- Offer is only valid for landed residential properties with a registered TNB account located in West Malaysia. Commercial properties (e.g., shop lots, factories) are not eligible.
- This promotion cannot be combined with other ongoing promotions, discounts, vouchers, or privilege programs.
- All pricing is indicative and may vary depending on site-specific conditions or adjustments during installation.
- The promotion includes:
- Up to 60-month 0% interest credit card instalment plan (subject to bank approval)
- Free 1-Year Solar Insurance (Sum Insured: RM20,000)
- 12-Year Product Warranty on Solar PV Modules
- 30-Year Linear Output Performance Warranty on Solar PV Modules
- 10-Year Product Warranty on Solar Inverter Modules
- 10-Year Mounting System Warranty (against corrosion)
- 3-Year Workmanship Warranty
- 3-Year Free Maintenance
- Final payment must be completed within 90 days from the date of final proposal acceptance.
- Maximum solar system size is subject to availability and supplier limitations.
- All systems and promotional perks are offered on a first-come, first-served basis and are subject to a limited quota.
- The solar provider reserves the right to revise the final price due to unforeseen site conditions or additional requirements during installation.
- Any disputes shall be governed by the Terms & Conditions of the merchant and the service provider.
- For more information, contact +6019 207 4988 or email [email protected] .
- The NEM 3.0 quota offer period will run until 30th June 2025 or until all quotas are allocated, whichever comes first.