Emergency Power Supply (EPS) - Method 2

This unit will be powered by the EPS system. You can connect both new and existing circuits to this unit, and they will receive power from the EPS system under normal conditions. In case of a power cut, the system will automatically switch to EPS mode, as long as the battery has enough charge.

Depending on the type of inverter you use, you might need to add a relay to establish a connection between the neutral and earth. To ensure safety, you must attach an earth spike (known as TT Earthing) to the consumer unit.

This spike provides a secure path for electrical grounding. It's important to check the amperage capacity of the EPS port. Some inverters can only supply 13 amps, so overloading the EPS port may cause the inverter to shut down and potentially damage it.

👍Advantages:

• Backup power is provided only to dedicated circuits, reducing the risk of accidentally overloading the system.
• Backup power should last longer since it is only supplying essential circuits.

👎Disadvantages:

• The entire property is not backed up, only specific circuits.
• It requires rewiring of existing circuits or installing new circuits.

☀️Solar PV in Derbyshire

Hectors Electrics are your local Solar PV installers based in Derbyshire. Our expert team of installers are always happy to answer questions you may have surrounding Solar PV systems and battery storage including EPS, Islanding modes and optimisers.

📲Contact info:

📞 01332 410240

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