Geëlektrificeerde industriële warmte. Goedkoper dan gas.

A power-to-heat system with thermal storage allows electricity consumption to be decoupled from heat demand over time. The storage can be charged when electricity prices are low or when renewable power is available in larger volumes. The stored heat can then be used independently of these conditions for the production process.

A standalone electric boiler, by contrast, operates in direct response to current heat demand. Electricity must be consumed at the exact moment heat is required, which significantly limits the ability to shift loads or take advantage of favourable market conditions.

Thermal storage therefore adds operational flexibility. Electricity can be sourced strategically at economically favourable times, while maintaining a stable heat supply for production.

The operation of a power-to-heat system is aligned with economic conditions. The system is used only when electricity is available at price levels that make its use for heat generation economically viable.

When electricity prices are high, heat generation can be automatically reduced or temporarily paused. In such cases, existing boilers continue to supply the process.

As the existing heat supply remains in place, no additional economic risk is introduced to plant operations. Electrification of process heat takes place only during periods when it is economically beneficial.

Payback periods depend strongly on site-specific conditions. Key factors include the electricity price structure, the plant’s heat demand profile, and the available operating hours.

In industrial projects, the CO₂ payback of the storage technology is typically achieved within a few months. The investment in the system often reaches payback within approximately three to five years. Additional revenue potential may arise from leveraging flexibility in the electricity market, for example through participation in ancillary services.

• ENERGYNEST finances, builds, and operates the system
• The customer pays only for the heat delivered
• No upfront investment required

• ENERGYNEST designs and delivers the complete system
• The customer invests and owns the asset
• The customer retains the full benefit of cost savings

As electrification increases, a larger share of total heat demand can be covered by cost-competitive electric heat. Larger systems and storage capacities enhance flexibility in the electricity market. A larger thermal storage enables greater load shifting, allowing electricity to be used more extensively during favourable market periods.

This can further reduce the average cost of heat. At the same time, dependence on fossil fuels declines as a growing share of heat supply is provided electrically.

A power-to-heat solution with ThermalBattery™ is most economically viable where there is continuous or regularly recurring heat demand and sufficient electrical infrastructure. In some cases, however, its use may be less attractive from an economic perspective.

This applies, for example, when annual heat demand is very low. Limited or insufficient electrical connection capacity can also constrain economic performance, as system operation requires adequate grid capacity.

Applications where process heat is needed only for very short periods or in highly irregular patterns are also less suitable. In such cases, the benefits of thermal storage can only be leveraged to a limited extent.

In addition, economic viability may be reduced if the required process temperatures are significantly above the system’s technical operating range.

The system can be flexibly adapted to the available grid capacity at a given site. Charging times can be controlled to account for existing grid constraints or internal load management requirements.

The integrated thermal storage also allows electricity consumption to be shifted to grid-friendly time windows. Power can be drawn when sufficient grid capacity is available or when the plant’s load profile permits.

In this way, the system can contribute to overall grid stability. In many cases, its operational flexibility even reduces grid strain by avoiding peak loads and shifting electricity consumption over time.

(assume: delivery of materials + construction)

The lead time for installing a ThermalBattery™ is typically 12-15 months after the contract is signed. This period includes the completion of the ThermalBattery™ design, preparation and shipment of key components, and the entire construction process, which involves civil works and cold commissioning. The exact duration may vary depending on the project's size and location, but all necessary steps are accounted for within the specified lead time.

The material costs of our base storage modules depend on the actual storage capacity and specific project conditions. This includes the storage medium, the containment of the medium and the means to input and extract heat from the medium. This also needs to take into account local EPC costs which tend to vary significantly from one project to another. The total system cost will therefore vary depending on its size, functionality, subcomponents, and geographic location.

CO₂ emissions are highly context-dependent and vary greatly from project to project. What is certain is that their impact will generally not be significantly greater than that of cement. A conservative overall estimate comes to a total emission of 15 kg per kWh of storage capacity. The GHG intensity of electricity production differs significantly from one Member State to another. However, the average GHG emission intensity of electricity generation in EU is about 250 g/kWh. A rough estimate for recovery of CO₂ emissions for a ThermalBattery™ is two to three months. Therefore, regardless of the type of project, the ENERGYNEST ThermalBattery™ will quickly recover its carbon footprint. The ThermalBattery™ is a smart and cost-effective solution for reducing CO₂ emissions in heat-intensive industries.