Up to 50% Less Energy for Cooling and Heating
Onyx Energy delivers turnkey thermal battery systems – from system dimensioning and savings calculation to integration, installation, and commissioning – for:
- Industry
- Commercial Buildings
- Data Centers
- Energy Networks
- Applications
Easily integrated into your existing HVAC infrastructure.
- One technology – countless applications
Who Is This For?
Commercial and residential buildings
Office buildings, apartment complexes, hotels, shopping malls, schools, hospitals
Industrial facilities
Manufacturing, chemical industry, food & beverage, pharmaceuticals, electronics
Industrial processes
Autoclaves, pasteurizers, CIP (Cleaning-in-Place) systems, fermentation and distillation processes, chemical reactors, process cooling and waste-heat streams
Data Centers and Telecom
Server rooms, data centers, telecom base stations
Cold storage environments
Supermarkets, cold rooms, refrigerated warehouses, freezing facilities
District Heating & Energy Networks
District heating substations, utilities, energy hubs, geothermal and solar thermal networks
- Challenges
Our customers’ biggest energy challenges – and how to solve them
- High electricity costs driven by heating and cooling demand
- Difficulty reducing energy consumption with conventional measures
- Loss of valuable waste heat
- Efficiency losses during peak loads
- No flexibility in timing energy use
- Long payback periods for HVAC equipment replacement
- Unpredictable and rising energy prices
- Solution
Integrate a thermal battery into your existing HVAC system to:
- Reduce energy costs by improving system efficiency
- Capture and reuse waste heat
- Eliminate efficiency losses during peak load operation
- Add flexibility to when energy is produced and used
- Deliver fast payback without replacing HVAC equipment
- Reduce exposure to volatile and rising energy prices
- Technology
How the thermal battery delivers savings
System Optimization
The thermal battery actively improves the performance and efficiency of your heating or cooling system.
Free-Cooling Enhancement
The thermal battery maximizes night-time and cold-air free cooling — reducing compressor runtime and total energy consumption.
Waste-Heat Recovery
Thermal batteries store waste heat from industrial processes for later use, converting otherwise lost heat into usable thermal energy.
- Benefits
Key facts and benefits at a glance
Economic Efficiency
Up to 50% energy savings through system optimization, load shifting, off-peak energy use, and waste-heat recovery. Typical payback of two to five years, depending on application and energy prices. Extended lifetime of chillers and boilers due to reduced wear.
Sustainability
Plant-based PCM technology, non-toxic and environmentally friendly. Lower CO₂ emissions through reduced electricity and fuel consumption. Higher HVAC efficiency. Reuses waste heat rather than discarding it.
Technology & Integration
More than 25-year lifespan, 10,000+ cycles without performance loss. Available capacities: 30 kWh, 60 kWh, and 1.2 MWh — modular with no technical upper limit. Minimal installation effort (< 1 day). Operating range from −30 °C to +120 °C. Very low maintenance.
Operational Safety & Stability
Improved operational reliability through additional thermal storage capacity for heating and cooling. Stable process temperatures ensure precise and reliable operating conditions. Load buffering and load smoothing reduce peak loads and enhance overall system stability.
- References
Selection of validated reference projects across Europe
Cooling savings
Measured cooling energy savings achieved through thermal load shifting, night-time charging, and reduced compressor runtime.
Office and Laboratory
Hotel
Telecom station
Shopping mall
Server room
Industrial facility
Data Center*
Heating savings
Measured heating energy savings through optimized boiler operation, peak-load coverage, and recovery of industrial or process waste heat.
Office and Laboratory
District heating plant
Food industry
Shopping mall
Process cooling
Calculated energy savings in industrial process cooling applications based on real operating data, achieved through stabilized cooling operation, load smoothing, night-time charging, and free cooling.
Plastic mold cooling*
Fermentation cooling*
CNC machining*
* Data-based savings analysis
- Implementation and Services
Fast implementation – minimal operational downtime
Every application is different. We work closely with you to design the optimal solution and guide each project from assessment to commissioning — ensuring fast implementation with minimal operational downtime.
Free assessment and system design
Savings analysis based on real HVAC operational data, including system sizing and payback calculation.
Delivery within 1–2 months
Engineering, manufacturing, and project coordination.
Installation in less than a day
Minimal operational downtime, typically under one day.
Commissioning and handover within one week
System verification, fine-tuning, and formal acceptance without operational disruption.
Savings validation
Measuring and verifying energy savings under real operating conditions.
Annual performance reporting and optimization.
Optional annual energy usage analysis and savings optimization.
- Free assessment