Solar and storage for data centres
Power continuity is non-negotiable while high-density computing loads increase power costs and strain grid allocations. Terragreen designs solar generation and battery storage around your data centre uptime requirement, with documented electrical interfaces to your existing UPS trains, generator sets, and switchgear.
A Terrakraft India company. Designs developed to Tier redundancy standards. We state our engineering method plainly: operational references are validated per customer architecture.
Continuity is non-negotiable. Any change must fit the existing power path.
Data centre facility directors and operations heads balance two conflicting requirements:
The Uptime Mandate
Absolute voltage and phase stability. A utility dip cannot reach the server racks, and automated transfer schemes cannot fail.
The Load Surge
Modern computing racks and HVAC cooling cycles create unpredictable load steps. Demand charges penalize brief surges, while diesel spinning reserves sit against corporate emissions commitments.
Terragreen introduces solar and battery storage not as an experimental replacement, but as an engineered buffer integrated directly behind or alongside existing plant infrastructure.
Energy that stays on.
An engineered buffer integrated directly behind or alongside existing plant infrastructure.
Interfacing with UPS systems, generators, and switchgear
We do not alter the core critical path that protects your IT hall. We integrate storage and solar to absorb transient spikes and offset utility draw.
Dynamic Peak Shaving Behind the Utility Meter
Computing workloads often cause momentary demand spikes that exceed contracted limits. Our bi-directional power conversion systems (PCS) respond in sub-millisecond intervals, discharging battery power to clip spikes before utility maximum demand meters register the surge.
Interfacing with Static UPS Systems
Battery storage sits alongside or upstream of your UPS systems. The BESS handles daily cycling, tariff arbitrage, and transient absorption, preserving internal UPS battery strings strictly for emergency ride-through.
Displacing Diesel Generator Run-Hours
During scheduled load testing or localized grid curtailment, stored solar energy carries facility auxiliary and HVAC cooling loads, directly reducing generator run-time and diesel fuel consumption.
Harmonic Mitigation and Power Quality
High-density electronic power supplies produce harmonic distortions. Our hybrid inverters and PCS units provide active harmonic filtering and reactive power support (P/Q control) to maintain voltage waveforms within IEEE 519 standards.
Designed around your uptime requirement
Terragreen does not state arbitrary availability percentages. Continuity is engineered to your specific autonomy duration, redundancy configuration (N+1, 2N, or 2N+1), and facility classification.
| Pcritical | Target IT and mechanical support load (kW) |
| ηinv | Power conversion system efficiency (typically >96%) |
| tautonomy | Required bridge time prior to stable generator sync (hours) |
| DoDsafe | Safe depth of discharge for cell life preservation (up to 95% in LFP) |
| Psurge | Transient step-load allowance for chiller/pump startup |
Figures and formulas on this page are indicative and non-binding estimates. See the Disclaimer.
Thermal runaway protection
We utilize stationary Lithium Iron Phosphate (LiFePO4) chemistry with an intrinsic runaway threshold of +270 °C. Enclosures feature isolated rack compartments and dedicated gas/aerosol fire suppression.
Data sovereignty
Operational telemetry runs on local network hardware behind dedicated firewalls using Modbus TCP or IEC 61850. Operational control data remains within your enterprise network perimeter.
Structured qualification before capital commitment
Data centre environments require rigorous technical validation. We work in four structured phases:
Technical Workshop
Review single-line diagrams, short-circuit levels, breaker coordination curves, and physical site clearances.
Simulation & Protection Review
Model transient response, fault ride-through, and thermal loads using PVSyst and electrical simulation tools.
Phased Scope Agreement
Scope is delineated across engineering, supply, physical integration, and testing.
Commissioning & SAT
Site Acceptance Testing (SAT) executed in scheduled maintenance windows, verifying step-load response and isolation.
Questions facilities directors and consultants ask
Can battery storage sit directly alongside our existing rotary or static UPS systems?
Yes. We engineer storage as a parallel or upstream subsystem connected at the main LT distribution board. Protection relays are coordinated so that BESS operations do not alter upstream protective trip settings or interfere with existing UPS DC buses.
How does Terragreen prove performance if data-centre-specific references are under NDA?
We state our capability and engineering method plainly. We do not claim unverified references. We prove feasibility by running single-line simulations against your facility's actual load logs and conducting technical review workshops with your owner's engineer.
What battery chemistry is deployed for indoor or perimeter data centre rooms?
We deploy Lithium Iron Phosphate (LFP) prismatic cells. LFP is chosen over cobalt-based chemistries (NMC) for its superior thermal stability (+270 °C), zero toxic heavy metal outgassing, and long cycle life (8,000 cycles at 0.5C).
Plan a technical workshop for your facility
Bring your single-line diagram, load growth projections, and redundancy criteria. Our electrical engineers will evaluate interface options and return a documented design basis.