FEASIBLE
Long-Term Energy Storage. Reimagined with Zinc.
Engineering long-duration energy storage with safe, scalable,recyclable and fully indigenous Zinc-Air battery systems.
Renewable Energy Paradox
Renewable sources like solar and wind generate power that varies by the hour, season, and geography. But demand stays constant.
This mismatch leads to two critical challenges: energy curtailment (generation > demand) and energy reliability (generation < demand).
Challenges
ENERGY CURTAILMENT
Generation > Demand
When generation exceeds demand, surplus energy is wasted. This impacts the operations and returns of asset managers, investors, and independent power producers.
Clean energy is wasted without storage
Lower Capacity Utilization Factor (CUF)
Reduced ROI
& financial penalties
High Levelized Cost of Energy (LCOE)
ENERGY RELIABILITY
Generation < Demand
When demand exceeds generation, power shortages and instability create challenges for grid operators, industries, and end consumers relying on uninterrupted supply.
Frequent power outages & downtime
Critical systems at risk (e.g., datacentres)
Customer dissatisfaction & financial loss
Grid instability + reputation damage
Zinc-Air Battery
Safe, Scalable, Long-Term Storage
Sthyr Energy solves both problems with its patented Zinc-Air Battery system, storing power for months and delivering clean energy on demand, even when solar or wind isn’t available.
01
Store
Surplus energy regenerates Zinc from ZnO using the Zinc Regeneration Unit (ZRU), which is deposited on the plates.
01
Store
Surplus energy regenerates Zinc from ZnO using the Zinc Regeneration Unit (ZRU), which is deposited on the plates.
02
Discharge
When energy is needed, zinc plates are used in the Zinc-Air Battery (ZAB) to release power using ambient air and water-based electrolytes.
03
Zn Plates
Zinc plates store energy densely and stably for long durations without degradation.
04
Repeat
Zinc converts back to ZnO, which is reused in a closed-loop cycle.
Driving a 24x7 Renewable Future
ADDING VALUE ACROSS SECTORS
Sthyr Energy is building the backbone for feasible long-duration energy storage. Our zinc-based system enables seasonal storage, reduces solar and wind curtailment, and brings reliable clean energy to both grid and off-grid applications.
Seasonal Storage
Enable 100% renewable energy systems by shifting energy between seasons.
Critical Backup
Replace diesel generators for data centers, defense, and disaster management.
Grid Applications
Provide firm dispatchable capacity and round-the-clock renewable power.
Remote Locations
Power isolated communities with reliable, clean energy micro-grids.
Why Zinc?
Zinc-air is a smart choice for energy storage. It’s stable, scalable, and safe without relying on rare materials or complex handling.
01
High theoretical energy density
02
Low cost
03
Zn is abundant
04
Non-corrosive to ambient conditions
05
Easy to transport and store
Why Zinc-Air?
Zinc-air is a smart choice for energy storage. It’s stable, scalable, and safe without relying on rare materials or complex handling.
01
Low Cost
02
Recyclable
03
Abundant raw material
04
Long-term Energy Storage
05
Safety - Water based battery
06
High energy density 3x Li-ion
Our Technology
Sthyr Energy is building the backbone for feasible long-duration energy storage. Our zinc-based system enables seasonal storage, reduces solar and wind curtailment, and brings reliable clean energy to both grid and off-grid applications.
550 Wh/l
Energy Density
>30 Days
Power Backup
Modular
Design
01
Energy stored as metallic Zn for years
02
No self-discharge
03
Decoupled charging and discharging
04
> 95% of the system is recyclable
Technology Comparison
Most energy storage technologies involve trade-offs. ZincES stands out by delivering on all fronts: low cost, low self-discharge, high energy density, and exceptional long-duration performance.
High
Moderate
Low
Types
Self-Discharge
Energy Density
Cost (CAPEX)
Energy Storage Duration
Energy Discharge Duration
Suitability for Seasonal Storage
Thermal (Molten Salt)
Flow Batteries
Mechanical Storage
Hydrogen
ZincES
Let’s build reliable clean energy.
P. No: 4, Third Floor, Rajalakshmi
Nagar, Velacherry, Chennai 600042
© 2020 Sthyr Energy Pvt. Ltd.
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