When does a home battery make sense if I already have solar?

When your feed-in tariff is low and evening rates are high, or you want blackout backup. A battery stores daytime solar to use at night and can power essentials during outages.

Will a battery power my whole home?

Most systems are wired to essential circuits (fridge, lights, Wi-Fi, garage) to extend runtime and reduce cost. Whole-home backup needs a larger battery and inverter.

How do solar and a battery work together?

Solar powers the home first, then charges the battery. In the evening or at peak rates, the battery discharges to cut grid use. During a blackout, an auto switch keeps essentials on.

☀︎ Got solar panels already? You’re halfway there. | Get to know solar battery benefits

HH L
Sep 8
1 min read

Updated: Sep 14

3 Reasons a Battery Could Be Your Next Smart Move | Get to know solar battery benefits

Solar home exporting power during the day and buying back at night | get to know solar battery benefits

Intro

Got solar panels already? You’re halfway there.If you’re exporting cheap daytime power for cents and buying it back at night for 4–5× the price, a battery could be your next smart move. get to know solar battery benefits

3 Signs You’re Ready for a Battery

1. Daytime surplus is going cheap

If your feed-in tariff is only 5–8c/kWh while evening power costs 25–35c/kWh, you’re losing money. A battery stores your daytime solar for evening use.

Quick check: Look at your bill. If you’re exporting more than you’re using at night, a battery could help.

2. Time-of-use tariffs

When daytime rates are low but evening rates are high, a battery lets you shift usage and avoid expensive peak charges.

Typical peak hours: 4–9 pm weekdays when demand spikes.

3. Blackout resilience matters

For families, home offices, or households with medical needs, backup power gives peace of mind.

Consider a battery if you have: Kids, elderly family members, medical equipment, or frequent storms in your area.

Solar-only vs Solar + Battery

Solar-only

✔ Great daytime savings

✔ Lower upfront cost

✔ Best if home during the day

✖ No evening solar use

✖ No backup during outages

Solar + Battery

✔ Day + night savings

✔ Backup during outages

✔ Use more of your own solar

✔ Better comfort and resilience

ⓘ Higher upfront cost

How Battery + Solar Works Together | Solar battery benefits

Clock highlighting 4–9 pm peak time-of-use window | solar battery benefits

Solar saves you money in the day.

Solar + Battery saves you day and night, plus gives blackout protectio

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