Powering intelligence. Recovering heat. Creating more value.

Where a site has sufficient electrical capacity and a suitable connection, computing offers an additional way to create value from available energy.

Nodez aims to offer computing capacity through appropriate commercial models, including metered usage, reserved capacity or managed computing services.

Potential applications include:

• AI inference: Running trained models for intelligent applications, analysis and automated processing.
• Rendering and media: Providing GPU resources for visualisation, animation and video workloads.
• Scientific and technical computing: Supporting suitable simulations, research and data analysis.
• Compute-as-a-Service: Making GPU and CPU capacity available to customers that need flexible computing resources.

Our commercial model will depend on customer demand, hardware capabilities, connectivity, utilisation, service reliability and operating costs.

Computing equipment converts much of the electricity it consumes into heat. Traditionally, this heat is removed by cooling systems and released into the surrounding environment.

Nodez aims to capture a useful proportion of that thermal energy and redirect it towards applications within the host building.

Our principle: use the electricity for computing, then recover the heat wherever it can provide a practical benefit.

How the heat recovery system works

1. Servers generate heat

GPUs and CPUs produce heat during operation.

2. Capture the heat

Liquid cooling or controlled airflow transfers heat into a recoverable stream.

3. Transfer heat through a heat exchanger

Thermal energy is transferred to a separate water or heating circuit.

4. Supply useful heat

Preheat hot water, contribute to space heating or support a heat pump.

Domestic hot water and building heating

Preheating hot water

A heat exchanger transfers server heat into a separate water circuit or thermal store, preheating water before it reaches the building's existing hot-water system.

Supporting space heating

Where the recovered heat reaches a suitable temperature, it can contribute directly to a building's heating system. A heat pump can raise the temperature where additional heat is required.

Integrating with air-source heat pumps

At suitable sites, recovered server heat can be integrated into the heat pump system using a properly engineered airflow arrangement, heat exchanger or thermal circuit. This may improve operating efficiency under appropriate conditions, but the achievable COP depends on the design and actual operating temperatures.

Reducing cooling demand

Recovering heat at source can reduce the amount of thermal energy that must be rejected by conventional cooling systems, subject to the site's heat demand and cooling configuration.

Designed around each building

Every site has different requirements. Nodez will assess the building's heating system, available heat, electrical capacity and expected computing demand to determine the appropriate design.

Factors include:

• Existing air-source heat pumps and boilers.
• Domestic hot-water requirements.
• Seasonal heating demand.
• Server temperatures and cooling architecture.
• Heat exchanger capacity and pipework requirements.
• Thermal storage and backup heating.
• Installation costs and expected energy savings.

Our goal is to create practical, site-specific systems that make productive use of recovered heat.