Inheriting research & development background since 1975, SolarBK is proud to be a pioneer in laying the groundwork for clean energy industry in Vietnam and is now a leading company in this field.
To carry out the mission of applying clean energy into everyday life, we have researched and developed many solutions to make Solar power energy more diverse, convenient and cheaper.
5 things families should know before installing a Solar Power System for long-term peace of mind
Publish date 05/10/2025
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Weekends are often when families review household expenses, from tuition and food to ever-increasing electricity bills. With electricity prices having risen 4.8% since May 2025 and demand reaching record peaks during heatwaves, many households are considering rooftop solar power to secure long-term savings and energy independence.
According to Vietnam’s Ministry of Industry and Trade, national electricity demand grows 8–9% annually, while traditional power sources face challenges from fuel costs, carbon emissions, and grid overload during peak seasons. Investing in a rooftop solar system helps lock in long-term electricity costs and protects families from price volatility and potential grid strain.
But to invest once and rest easy for years, households should understand these five critical factors before making a decision.
Rising electricity prices are a concern for many families (illustrative image from the internet).
1. Solar Panels Define Lifespan & Efficiency
Solar panels are the heart of a solar system. High-quality modules can last over 20 years with minimal power degradation (only 0.3–0.5% annually). Poor-quality panels degrade faster, cutting electricity production within just a few years. Families should check:
Panel origin & international certifications (IEC, TUV…).
Minimum 25-year performance warranty.
Reliable installation partners to avoid uncertified, low-grade products.
Expert Insight: New-generation solar panels now reach 21–23% efficiency, compared to 16–18% in older models. That 3–5% difference can generate hundreds of extra kWh per year.
2.Inverters: The Brain of Your Solar System
A premium inverter:
Maximizes production even with partial shading.
Automatically shuts down in case of faults for safety.
Connects easily to smart monitoring apps.
Choose reputable brands with 5–10 years warranty and certified distributors.
Expert Insight: Smart inverters with independent MPPT tracking can improve total system output by 5–10%.
3. Warranty & After-Sales Service Matter
Solar isn’t just hardware — it’s an ongoing service. Ask about:
Warranty terms for panels, inverters, and mounting systems.
Regular inspection and quick-response support.
Avoid “fly-by-night” installers who disappear after setup.
To ensure a solar power system is both efficient and safe, families need a partner that not only sells equipment but also provides end-to-end support — from consultation, design, and installation to legal assistance and operation.
4. Grid Registration & Legal Compliance
Since 2025, Vietnam requires all rooftop solar systems to register with EVN for safety and transparent energy buyback. Unregistered systems risk:
Not being paid for excess power.
Forced grid disconnection if failing technical standards.
Partner with providers who know the latest regulations and handle legal paperwork.
5. Smart Monitoring Protects Your Investment
Real-time monitoring apps show how many kWh your roof produced daily, detect anomalies early, and help maintain optimal performance.
SolarBK: Nearly 20 Years Helping Vietnamese Families Go Energy-Independent
With almost two decades pioneering renewable energy, SolarBK has empowered thousands of households to:
Select top-tier, internationally certified panels & inverters with long warranties.
Integrate battery storage to stay powered during grid strain or blackouts.
BigK: An internationally standardized rooftop solar solution, pioneering energy yield insurance and flexible financial support.
BigK: Vietnam’s First Rooftop Solar Solution With Performance Insurance & Financial Support
BigK (formerly BigKilowatt) is designed for households, 2–10 kWp, and officially distributed by SolarGATES.
On Sept 20, 2018, SolarBK Holdings launched BigK — Vietnam’s first rooftop solar solution with third-party energy yield insurance and financing options.
Partnerships with BIC Insurance and BIDV Bank enabled insured energy production (75% guaranteed for 5 years) and affordable loans (12–36 months, first-year interest supported).
This milestone built trust when solar was new in Vietnam, paving the way for households to confidently adopt clean energy.
Conclusion
Weekend is the perfect time to plan: cut power bills, embrace clean energy, and gain independence from price hikes.
With nearly 20 years of renewable energy expertise, smart monitoring, performance insurance, and financing support, SolarBK and BigK are your trusted partners for a safe, profitable, and sustainable solar journey.
