About SREL

SREL (Sustainable and Renewable Energy Limited), is a Bangladeshi registered company providing renewable energy solutions. The primary focus is on solar energy for small, mid and large scale deployments.

SREL is a leading solar renewable energy EPC company in Bangladesh. Our mission is to drive Bangladesh towards energy independence by providing turnkey engineering, procurement, and consulting services for solar energy projects. We are committed to leveraging the latest technologies and expertise in solar energy and collaborating with local stakeholders, government bodies, and international organizations to create a supportive policy and regulatory environment for renewable energy. At SREL, we are dedicated to providing reliable, affordable, and clean energy solutions to businesses and communities, contributing to the overall socio-economic development of Bangladesh, while also addressing the global challenge of climate change.

In addition to our solar energy services, SREL is also working on providing Lithium-Ion based industrial energy storage solutions ranging from 50KWh to 2MWh. Our cutting-edge technology and expertise enable us to develop customized energy storage systems that can help businesses and communities reduce energy costs, increase energy reliability, and support a more sustainable energy future. With our energy storage solutions, we aim to make clean energy accessible and affordable for all, contributing to a more resilient and sustainable future for Bangladesh.

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Ahsan Ullah Chowdhury


At helm of SREL management is Mr Ahsan Ullah Chowdhury as the Chief Executive Officer. A former Major of Bangladesh Army and Chief Operating Officer of Peoples Telecommunication and Information Services Ltd, he has over 35 years of experience in the telecommunication sector. Under his guidance; over 80 CDMA base stations and more than 250 PSTN exchanges were installed all over Bangladesh. Each of these exchanges and base stations consisted of battery banks and diesel power backup system. He is an expert in placement, maintenance and replacement cycle of standard lead acid batteries, sealed maintenance free batteries and dry cell batteries that were used in the telecommunication sector. 

Shaniur T I M Nabi


Leading the Research & Development is the Director of SREL, Mr Shaniur T I M Nabi. A dynamic engineer and entrepreneur with technical expertise in software development, telecommunication network management, security, optimisation and system integration. Experienced in planning, deploying and maintaining a nationwide PSTN network in Bangladesh. The network is a hybrid of traditional TDM network, base stations, soft switch, CDMA, Centrex and FTTH with a skilled workforce of 391 engineers, technicians and professionals. He has a double degree from RMIT University, Australia on Bachelor of Applied Science (Computer Science) and Bachelor of Engineering (Communication) with honours.

Mission: Driving Bangladesh towards Energy Independence

SREL aims to drive the nation towards energy independence by providing turnkey engineering, procurement, and consulting services for solar energy projects. Through collaboration with stakeholders and utilizing the latest technologies, the company seeks to create a sustainable and prosperous future for Bangladesh.

Vision: A Carbon-Neutral Bangladesh

This vision envisions a future where the country has achieved a balance between carbon emissions and carbon removal. This means that the country would no longer contribute to the harmful effects of climate change and instead would be a leader in sustainability and environmental protection. Achieving this vision requires significant changes in policies, technologies, and behaviours, but it is a crucial step towards a sustainable and resilient future for Bangladesh.