Can Base integrate with generators? Which generators are compatible?

Yes! Base members have two ways to use a portable generator alongside their battery system:

Members can connect a portable generator to their home by installing a generator interlock on their main electrical panel. Learn more here about how this works. Note that the interlock system prevents simultaneous operation of the generator and battery at full home capacity.

• This setup allows the generator to power your home during a prolonged outage if the Base battery is fully drained.

• Note: This setup does not recharge the battery — it only powers the home directly.

Base batteries support direct portable generator integration to unlock deeper backup functionality, with options depending on your system size. Learn more here about how this works.

• Base Core (39.2 kWh and 78.4 kWh batteries): The generator recharge port comes included standard with the battery at no additional cost.

• 25 kWh and 50 kWh batteries: The generator plug is available as an optional add-on for an additional $1,000.

This setup allows a portable generator to plug directly into the battery, enhancing compatibility and enabling smart power management between the generator and battery for improved operational efficiency.

Benefits of the generator recharge port:

• Recharge the Base battery using a generator

• Power your home and recharge the battery at the same time

• Smarter load management between generator and battery

• Extended backup coverage — ideal for homes using under 70 kWh/day.

• During outages, the system uses the Generator Recharge Port to pull a steady flow of power from the generator to power the home, supplemented by the battery if necessary.

Generator compatibility:

• Base Core (39.2 kWh and 78.4 kWh batteries):

  • 240V generators: Require a 4 kW minimum (recharges the battery at 4 kW). For seamless operation, an L14-30 outlet should be used.

  • 120V generators: Require a 2 kW minimum (recharges the battery at 2 kW).

• 25 kWh and 50 kWh batteries:

  • Require a 240V output and an L14-30R receptacle, adhering to the required wattage minimum of 3 kW.

  • Note: These batteries have a 3000W limit. The 3000W limit refers to the maximum wattage the battery can accept from any generator; exceeding this limit will not improve efficiency, so getting a larger generator will not change this limit.

• Not compatible (All models): Whole-home standby generators, or generators with lower outputs such as certain low-capacity standby models.

• Fuel efficiency should also be considered for prolonged outages. Larger generators with sufficient fuel capacities offer extended runtime even if daily power use is less than 72 kWh.

Please Note:

• The generator recharge port is only eligible for new members to checkout with at basepowercompany.com

• If you have already signed up for Base and did not select the generator recharge port at checkout, we will not be able to add it to your account

• If you have a battery system installed, we will be unable to add the generator recharge port to your installed system