Smart grid company Flexitricity has announced the first fully automated response to a frequency event via its Frontline service, a sub-one second demand response service for National Grid that allows companies to unlock revenue from their existing electricity generating and consuming equipment.
The company’s implementation of the service was conducted in partnership with the manufacturing plant of a global semiconductor company, whose on-site Diesel Rotary Uninterruptible Power Supplies unit (DRUPS) is connected to Flexitricity Frontline and configured to respond within one second to deviations in mains electricity frequency.
System frequency is controlled in real time by National Grid by balancing electricity demand with generation. If there is a shortfall in generation, such as when a large power station fails, frequency can fall. A frequency drop must be corrected very rapidly, meaning that sites must reduce load or increase generation within seconds.