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SIESTART™ hybrid solutions


Instant performance at the push of a button

Today’s energy producers depend on the safety of their operations and 100% availability of energy. They need to quickly respond to fluctuations in power demand, and must be able to shift to island operation to ensure an independent power supply when needed. The challenge is to meet these standards while also reducing emissions and costs.


Grid fluctuations are currently compensated primarily by fossil-fired power plants. They provide dispatchable and reliable power, but depend on external sources when an autonomous power supply is needed. In this case, battery energy storage system (BESS) serve as ideal back-up for instant power supply.


SIESTART sums up the capabilities of both fossil and renewable power generation by integration of BESS. Such hybrid solutions provide instantaneous, reliable and sustainable energy.

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New opportunities

Boosting existing and new plants

SIESTART enables an advanced upgrade for existing power plants, enriching them with new features, while extending performance and providing new business opportunities – independently of OEM technology. It also significantly improves the value of newly built power generation units. With its exceptional flexibility, SIESTART can be used with gas turbines, steam turbines and combined cycles. This helps you to easily scale your power production operations and reduce operating expenses (OpEx). 

A hybrid solution - summing up capabilities

SIESTART integrates the benefits of fossil-fired power generation with battery energy storage system (BESS)

Conventional power generation
Battery storage
Dispatchability ●●●●● ●●●○○ ●●●●●
Reliability ●●●●● ○○○○○ ●●●●●
Continuity ●●●●● ○○○○○ ●●●●●
Instant performance ○○○○○ ●●●●● ●●●●●
Black start capability ●○○○○ ●●●●● ●●●●●
Power balancing ○○○○○ ●●●●● ●●●●●
Emissions ●●○○○ ●●●●● ●●●●●

Fossil energy suppliers increasingly face the challenge of having to respond as quickly as possible to load fluctuations. SIESTART provides the ideal solution, offering more flexible and more cost-effective power plant operation – with capacity at the push of a button. Using state-of-the-art energy storage systems, fossil power stations can be ramped up and down more quickly, and be used as a more targeted comprehensive solution – even for black starts when necessary. 

Typical implementation cases for a hybrid solution

The combination of a battery energy storage system (BESS) and fossil-fired power plant opens up a range of different services for the grid and power plant operators, including black-start capability and regulating services.