Powering India's Solar Future Since 2009
From Cambridge Energy Resources' telecom energy expertise to CER Rooftop's mission of making solar accessible to every Indian household.
Our Journey
What started as a distributed energy company for telecom towers has grown into India's trusted rooftop solar partner — driven by engineering excellence and a passion for clean energy.
Cambridge Energy Resources Founded
Founded with a vision to solve India's distributed energy challenges. Pioneered EMSaaS™ for telecom tower energy management.
CER Rooftop Incorporated
CER Rooftop Pvt Ltd incorporated (CIN: U74999HR2016PTC064049) to bring enterprise energy expertise to residential and commercial rooftops.
Joint Venture with Alpex Solar
Partnered with Alpex Solar, India's leading solar module manufacturer, ensuring premium DCR-approved components for every installation.
ConnectM Technology Integration
Integrated ConnectM's smart energy management platform for real-time monitoring, predictive maintenance, and maximum system performance.
PM Surya Ghar Expansion
Became one of India's leading PM Surya Ghar scheme specialists, helping thousands of families access government solar subsidies.
Our Core Values
The principles that guide every solar installation we deliver.
Quality First
We use only premium DCR-approved components from trusted manufacturers. No compromises, ever.
Customer Obsession
2-hour response time guarantee. Your questions answered, your concerns addressed — always.
Transparency
No hidden costs, no surprise charges. Clear pricing, honest timelines, and upfront communication.
Innovation
ConnectM smart monitoring, EMSaaS™ energy management — we bring cutting-edge technology to your rooftop.
Leadership
The team driving India's rooftop solar revolution.

Ashwani Sehgal
Director
A first-generation techpreneur with 30+ years of experience. Holds a degree in Mechanical Engineering from Punjab University, Chandigarh. President of the Indian Solar Manufacturers Association (ISMA) since 11 years, playing a pivotal role in advocating for favorable government policies that benefit solar manufacturers.

Achyuta Narayan Bakshi
Director
A seasoned business leader with over two decades of experience across energy, mining, logistics, and technology. Serves as Managing Director of Cambridge Energy Resources Private Limited — the parent company of the CER group. Instrumental in building the Cambridge Energy ecosystem across multiple verticals, including CER Energy Services, CER Microgrids, and CER RenewTech. His strategic vision and diverse entrepreneurial portfolio have been pivotal in driving CER's expansion into rooftop solar solutions.
Company Registration
CIN
U74999HR2016PTC064049
ROC
ROC Delhi
Company Type
Private Limited Company
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