Solar thermal to steam

Optimize feed-in from CST plants to produce steam with turning solar thermal to steam

The sun has incredible power. Especially south of the 45th latitude, Concentrated Solar Thermal (CST) power using parabolic through systems will be among the cheapest technologies to produce carbon-free industrial process heat.


But without storage, customers are left with a cold dark night ahead. Turning solar thermal to steam is the technology of choice to best utilize CST assets, recycling excess energy for steam production – enabling true decarbonization.

How solar thermal to steam works

(1) ThermalBattery™ is charged from collector field via the thermal oil-loop during noontime hours
(2) Heat is stored at minimal losses in the ThermalBattery™
(3) The ThermalBattery™ is discharged via the thermal oil loop to the steam generator to supply steam on demand

How this benefits your business

Save money easily

More value for money with thermal storage technology compared to oil tanks and molten salt storage.

Reduce maintenance effort
Low maintenance cost and complexity due to the ThermalBattery™ core being maintenance-free and requiring less to no OPEX.
Decarbonize heat immediately

Enabling full decarbonization of production site and best utilization of CST assets.

Limit energy market exposure

Limited exposure by producing energy on site and hence  dramatically reduced risk of increasing cost for gas and CO2.

How this solution is built

We closely develop these projects together with several well-known EPC suppliers of parabolic-through systems working with thermal oil.
ThermalBattery™-package including modules, insulation, superstructure and thermal foundation

Thermal-Oil-BOP-package including piping, pumps, expansion vessel, valves and instrumentation. Depending on customer requirement also independent distributed control system (DCS). 

Off the shelf Thermal-Oil steam generator for generating reliable industrial steam usually in the range of 200°C to 300°C.
You want to know more?

Are you interested in ENERGYNEST, or have any questions regarding our thermal energy storage solutions or our applications for your specific industry?


Don’t hesitate to drop us a line.


All our customer solutions are based on our patented ThermalBattery™ technology. This enables high-performance thermal concrete storage at scale, using innovative embedded heat exchangers.
Together with our strong network of partners we deliver our solutions as turn-key systems, as build-own-operate, or simply adjust the ThermalBattery™ as hardware ‒ entirely according to your needs.