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End-to-end solar EPC and advanced battery storage solutions — delivered with proven execution and lifetime support across India.

Powering India

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500+ MW
installed capacity
About Us

Nexsun Energy is a full-spectrum clean energy integrator founded in 2018 in Coimbatore. From solar EPC to battery storage — we power India's energy transition with proven execution and lifetime support.

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Installed Capacity

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Projects Completed

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Team Members
Nexsun solar power plant
Nexsun aerial solar farm
Solar EPC + Battery Storage

Clean, Intelligent, Reliable Energy.

Nexsun Energy delivers end-to-end solar EPC and advanced battery storage systems across India. Whether you're a commercial facility, industrial campus, or utility — we design, build, and operate your clean energy infrastructure.

  • CAPEX, OPEX, O&M, and Group Captive + PPA models
  • Modular BESS solutions — C&I (261 kWh) to Utility (5 MWh)
  • Tier-1 components with strict QA and performance guarantees
  • Pan-India delivery — founded and headquartered in Coimbatore
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Solar EPC Battery Storage (BESS) O&M Services Group Captive + PPA Open Access Energy Pan-India Presence
Our Solutions

Solar EPC + Battery Storage Under One Roof

Nexsun Energy delivers integrated clean energy solutions — from solar installation to grid-scale battery storage — with end-to-end accountability.

Nexsun solar EPC project

CAPEX Solar EPC

Full ownership solar plants — turnkey execution from feasibility study to commissioning with Tier-1 components.

Nexsun solar plant

OPEX / Zero CAPEX Solar

Harness solar power with zero upfront investment. Nexsun builds, owns, operates — you pay a discounted tariff.

Nexsun BESS container

Battery Storage (BESS)

Modular LFP-based battery storage for C&I and Utility customers — ≥94% efficiency, 8,000+ cycle life, up to 5 MWh per site.

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500+

MW installed across India

Nexsun solar project
Nexsun rooftop solar
Trusted & Proven

Why Choose Nexsun?

Proven EPC Execution

End-to-end expertise in designing, engineering, and delivering solar projects across commercial and industrial sectors.

Tier-1 Components & QA

Globally trusted Tier-1 equipment with strict quality assurance standards for long-term performance and reliability.

Integrated Energy + Storage

Combining solar power and advanced battery storage for efficient, stable, and smart energy management.

Open Access Leadership

Enabling industries to access cost-effective renewable energy through scalable open access solutions in Tamil Nadu.

Pan-India Reach

Headquartered in Coimbatore with project delivery capabilities across India. 150+ projects completed.

Lifetime O&M Support

From commissioning day to years later — AMC, remote monitoring, and performance guarantees for your plant.

Our Projects

Delivering Clean Energy Across India

300 MW completed, 50+ MW ongoing — solar EPC and battery storage projects built with precision and pride.

Solar EPC Battery Storage (BESS) O&M Services Group Captive + PPA Open Access Energy
Everything You Need to Know

Frequently Asked Questions

What solar models does Nexsun offer?
We offer four models: CAPEX (you own the plant), OPEX / Zero CAPEX (zero upfront, pay a reduced tariff), O&M services for existing plants, and Group Captive + PPA for HT consumers accessing solar via the DISCOM grid.
What is BESS and do you provide it?
Yes. BESS (Battery Energy Storage System) stores electricity for later use — enabling energy arbitrage, peak shaving, backup power, and grid services. We offer LFP-based BESS from 261 kWh (C&I) up to 5 MWh (Utility) per site, with ≥94% round-trip efficiency and 8,000+ cycle life.
What does your O&M service include?
Our O&M covers real-time remote monitoring, preventive and corrective maintenance, monthly generation reports, and performance guarantees — ensuring your plant delivers maximum yield throughout its lifetime.
How long does a solar installation take?
Timeline depends on project scale. A standard commercial rooftop system typically takes 4–8 weeks from feasibility to commissioning. Our structured six-stage delivery framework (feasibility → engineering → approvals → procurement → execution → commissioning) ensures quality at every step.
Where does Nexsun operate?
We operate pan-India with our headquarters in Coimbatore, Tamil Nadu. We have strong presence in Tamil Nadu's open access solar market and deliver projects across India.

Call Us Now

+91-9150094699

Work Hours

Mon to Sat 9.30 to 6.30 pm

Email Us

admin@nexsunenergy.com

Our Services
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Monday – Saturday 9.30 to 6.30 pm
100 Solar Ave, San Diego, CA
support@solaria.com
About Us

At Nexsun Energy, we’re committed to delivering reliable, efficient, and sustainable solar energy solutions. From residential installations to commercial systems, we help you harness the power of the sun and reduce your energy bills while protecting the planet.