Rooftop Solar and Floating Power: Pathways to Bangladesh’s Energy Independence
Bangladesh currently stands at a critical juncture in its energy security. The volatility of the global fossil fuel market and the country’s heavy dependence on imports are placing increasing pressure on the national economy. The most viable path to overcoming this challenge lies in the effective utilisation of domestic resources. To address the risks of climate change and achieve energy self-reliance, rooftop solar power could become a key strategic solution. However, despite Bangladesh’s global success in off-grid solar electricity through Solar Home Systems, the adoption of rooftop solar technology in urban areas remains largely stagnant.
Barriers Behind Public Reluctance
Why are people hesitant to install solar panels on their rooftops? Several practical factors contribute to this reluctance:
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High Initial Investment: A standard 5-kilowatt solar system requires an initial investment of approximately Tk 500,000 to Tk 700,000, which represents a significant financial burden for middle-class households.
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Substandard Equipment and Past Experiences: In the past, nominal solar panels were often installed merely to meet electricity connection requirements. Due to inadequate supervision and poor-quality components, many of these systems soon became non-functional, creating widespread scepticism among the public about the reliability of the technology.
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Maintenance and Technical Support: Regular maintenance, such as cleaning solar panels or repairing faulty inverters, requires access to skilled technicians or affordable service centres. At present, such services remain limited and difficult to access.
Government’s New Initiative: Making Adoption Easier
To break this stagnation, the government has introduced several groundbreaking measures by revising the Net Metering Guideline 2025.
Integrated Billing System: Ordinary consumers using single-phase electricity connections will now be able to supply power to the national grid and adjust their electricity bills accordingly. In practice, this means that surplus electricity generated during the day will be fed into the national grid, significantly reducing monthly electricity bills.
Direct Income Opportunity: If the electricity produced exceeds the household’s consumption, the government will directly pay for the surplus through bank accounts or mobile financial services such as bKash or Nagad.
Full Use of Load Capacity: Previously, consumers were allowed to install solar panels equivalent to only 70 percent of their approved electrical load. Under the revised guideline, customers can now install solar capacity up to 100 percent of their load capability.
Integrated Vision: Canal Excavation and the Blue-Green Revolution
The potential of solar power is not limited to rooftops alone. The government’s ongoing nationwide canal excavation programme offers an opportunity for a transformative integration with solar energy projects.
Floating solar panels installed over canal waters could generate large volumes of electricity while simultaneously creating shaded and cooler environments beneath the panels—ideal for high-quality fish farming. From the same space, this integrated approach could produce multiple benefits:
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Renewable electricity generation
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Water conservation by reducing evaporation
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Improved availability of water for agriculture
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Expanded fisheries resources
By incorporating solar power plants into the canal excavation programme, the government could establish a unique synergy between water-dependent agriculture and energy generation.
Economic Benefits: From Individuals to the State
The expansion of solar energy would directly strengthen Bangladesh’s economy.
At the individual level: After recovering the installation cost within approximately 5–6 years, households could enjoy nearly free electricity for the following 15–20 years. This would provide long-term protection against the steadily rising cost of electricity.
At the national level: The government currently provides significant subsidies for electricity generation. Expanding solar power would help reduce this financial burden. Moreover, the country spends substantial foreign currency reserves on importing coal and liquefied natural gas (LNG). Solar power adoption could significantly reduce this expenditure.
Conclusion
Solar energy is no longer a luxury; it has become a smart pathway to self-reliance. If the government integrates solar plants with the canal excavation programme and ensures easy financing and quality equipment for rooftop solar installations, Bangladesh could truly achieve energy independence. When every rooftop and every water body becomes a source of electricity generation, the vision of a prosperous and green Bangladesh will become a reality.
Author: Computer Engineer and Founder of Vector Solutions
Disclaimer: The views expressed in the Opinion section are solely those of the author. The Digital Bangla Media authority bears no responsibility for these opinions. As reflecting diverse viewpoints is an important indicator of media pluralism, this article has been published without editorial alteration. Any offence or reaction arising from the content remains the personal matter of the reader.
