Why OpenEnergy
We don't broker BESS — we build it. From cell qualification to container assembly, our Jaipur facility lets us guarantee specifications, lead times, and warranty terms most EPCs can only pass through.
Designs tuned for 50°C ambient, monsoon humidity, and the CEA grid code. IEC 62933, UL 9540A, and CEIG approvals built into every package as standard — not as extras.
One contract, one PM, one warranty. No finger-pointing between OEM and EPC when an inverter trips at 2 AM — we own it because we built it. End-to-end responsibility, contractually.
Designs, BoMs, and contracts structured to lender norms — IREDA, PFC, REC, and commercial bank-ready DPRs out of the box. We model for lenders before we model for construction.
What We Deliver
From utility-scale solar parks to grid-scale battery storage assembled in-house — engineered, procured, and built for India.
01 · EPC
Turnkey utility-scale photovoltaic parks for IPPs and C&I open-access developers across India.
| Capacity | 5 – 500 MWp |
|---|---|
| Modules | Bifacial TOPCon / mono-PERC, ALMM-listed |
| Topology | Fixed-tilt & single-axis tracker |
| BoP | HV switchyard, evacuation, SCADA |
| Compliance | CEA · CEIG · State DISCOM |
02 · EPC + Manufacturing
Grid-scale battery storage — engineered, assembled in-country at Jaipur, and deployed turnkey.
| Power / Energy | 5–200 MW · 10–800 MWh |
|---|---|
| Chemistry | LFP prismatic (NMC on request) |
| Cooling | Liquid-cooled, dehumidified |
| Duration | 1–4 h, augmentation-ready |
| Compliance | IEC 62933 · UL 9540A · NFPA 855 |
03 · Sub-EPC
BoP, MMS, civil, and HV packages for tier-1 EPCs. BESS supply at container or rack level.
| Scope | BoP · MMS · Civil · HV |
|---|---|
| BESS supply | Container or rack-level |
| Engineering | PVsyst · ETAP · DigSILENT |
| O&M | 2–25 yr terms, PR guarantee |
| Geography | Pan-India · Rajasthan-anchored |
Manufacturing
OpenEnergy is establishing a vertically-integrated BESS assembly facility in Jaipur — designed to qualify cells, assemble modules and racks, and deliver containerised energy storage systems built to Indian grid conditions.
Production flow
Incoming inspection, capacity binning, abuse testing
Welding, BMS integration, insulation testing
Mechanical, electrical, thermal sub-assembly
HVAC, fire suppression, PCS, EMS, FAT
Execution
Every project follows a fixed, lender-documented methodology — from the first yield model to 25 years of O&M.
Yield modeling (PVsyst), grid study, land due diligence, NPV / IRR analysis.
Lender-ready DPR, PFD, SLD, GA drawings, BoQ and cost benchmarking.
Module, inverter, BESS, BoP. ALMM-tracked, FAT-witnessed, delivery-guaranteed.
Civil, MMS, DC/AC, HV switchyard and grid evacuation. Safety-led execution.
Pre-comm checks, SAT, CEIG inspection, COD documentation and handover.
2–25 yr O&M with PR guarantee, SCADA and drone thermography monitoring.
Technology
Bifacial monocrystalline TOPCon panels, ALMM-listed and field-validated for 50°C ambient — achieving up to 23% efficiency across Rajasthan, Gujarat, and the Deccan plateau.
LFP chemistry with active liquid thermal management — ensuring safety, longevity, and consistent round-trip efficiency above 92% in any Indian climate. IEC 62933 compliant.
Machine-learning EMS that predicts demand, schedules charge/discharge, and optimises ancillary-services revenue in real time — CEA Grid Code and IEC 62933 compliant.
24/7 SCADA with IoT asset monitoring, predictive maintenance alerts, drone thermography, and live performance dashboards — across every site, any time.
About Us
OpenEnergy is an Indian EPC and BESS manufacturer dedicated to accelerating the country's transition to clean, dispatchable power. We design, build, and locally manufacture the storage that turns intermittent renewables into reliable infrastructure — so utilities, IPPs, and industries don't have to choose between affordability and reliability.
Founded on a single conviction: India will not import its way to a renewable grid. The cells, the engineering, the assembly, and the accountability all need to live in-country. OpenEnergy is built around that thesis.
Founder & CEO
Battery engineering at Tesla — design and manufacturing of energy storage systems at the world's most demanding standards. Founded OpenEnergy to bring that engineering rigour to India's grid.
Get In Touch
Send us your tender pack, land status, or grid connectivity letter. We respond within 48 hours with a preliminary scope and rough order of magnitude — no boilerplate, no unsolicited calls.
Every RFP is reviewed by an engineer, not a salesperson. No automated triage.
Scope outline, indicative tariff band, and clarifying questions — typically a one-pager.
If aligned, we visit the site and issue a bankable DPR within 3–4 weeks.
Fixed-price, milestone-linked EPC with PR guarantees and lender-ready documentation.