FREQUENTLY ASKED QUESTIONS

Q: What do I use for DC protection on a high voltage battery?

A: You have to use a high voltage DC disconnect.

Q: Can you use low voltage batteries on a high voltage inverter?

A: No, most low voltage batteries are not designed for series connection.

Q: Can i install my own high voltage system?

A: No, high voltage systems need to be installed by a qualified electrician that has HV training or experience.

Q: What is the Voltage range that HV Systems typically operate on?

A: Between 150V and 1000V

Q: What installations require a HV system?

A: Typical residential installations are usually suited to a LV 48V system and HV systems are utilized in commercial and industrial installations

Q: What Voltage range are HV large lithium battery stacks?

A: Typically between 200V-800V.

Q: Are all HV solar systems three phase?

A: Most large commercial HV systems are 3 phase

Q: What makes 3 phase installations more efficient in commercial and industrial settings?

A: Because they supply continuous, balanced power. This ensures the power never drops to zero.

Q: How do HV batteries work differently than LV batteries?

A: In LV systems batteries are connected in parallel, while HV batteries are wired in series to achieve the high operating voltage.

Q: Why do HV Battery stacks need a Battery Management Unit (BMU) ?

A: So that the BMU can collect data from all individual battery modules in the stack and insure safe communication with the inverter.