Grid Operation

Through the increasing number of fluctuating renewable energies, grid operators are facing more and more difficulties to keep the grid stabilized. Grid frequency and voltage have limited operating areas and have to be continuously regulated to guarantee the grid stability. Furthermore renewables cause power peaks which can exceed the grid's capacities. A backup storage will here save costs and will give you more flexibility.

FREQUENCY REGULATION

RESPOND TO FREQUENCY DEVIATIONS WITHIN MILLISECONDS!

Classical frequency regulation resources, such as steam or combustion turbines, are “ramp-limited resources” and are not able to quickly adjust their energy output according to the operator’s dispatch signal. This significantly limits the quality of service that these resources are able to provide. Fast-ramping power reserve sources, such as battery energy storage, provide higher performance and lower response time. Due to recent changes in the tariff structure of grid operators, these response times are taken into account and will now become more beneficial for asset owners.
   

Hybrid BESS & Power-to-Heat

 

Voltage Regulation

With the growing number of solar installations, requirements increase for local distribution system's operators and their existing network infrastructures. In the past electrical distribution systems have been designed for a power flow from high voltage via medium voltage to low voltage with the consumer or end user being a sink of electrical energy. Now, the user can become a source of electrical energy. In this case the power flow is reversed and voltage drops on impedance reverse as well. This can result in exceeding the upper voltage tolerance (+10%) especially in network spur lines. Without any changes, the existing network infrastructure will automatic switch-off of solar inverters resulting in dissatisfied customers as well as failure to meet renewable energy legal objectives.

without BES
without BES
with BES
with BES
 

Increased Grid Capacity

Maximum grid capacity is usually only required for very short time slots. Through installed battery capacity these power peaks can be absorbed and shifted to less loaded times. This will avoid the installation of additional grid capacity and investments.