In Melbourne's outer east on Thursday, Premier Daniel Andrews announced his government would spend $42 million to set up the batteries if re-elected on November 26.
"We think about 25,000 households will benefit from this," Mr Andrews told reporters at a bowls club in the seat of Bayswater, held by Labor on a wafer thin margin.
Fifteen of the batteries will initially be installed in Melbourne and 13 in regional Victoria.
Labor has committed to work with community groups, local governments and distribution companies to identify locations for the remaining 72 batteries.
The batteries are expected to triple the number of Victorian homes with access to storage, allowing more to return surplus solar-generated electricity to the grid through feed-in tariffs.
Energy Minister Lily D'Ambrosio said the Andrews government planned to install all 100 batteries within the next term should they win another four years in office.
She said the batteries will drive down power bills but would not put a dollar figure on how much.
"The more neighbourhood batteries that we have, the cheaper the cost will be of poles and wires that they're required to pay off their bills, and of course the energy that they use," Ms D'Ambrosio said.
"We know that that's ... one of the key solutions to us meeting our ambition to get to 95 per cent renewable energy."
With power prices increasing across Australia, Labor last month promised to re-enter the energy market with the revival of the State Electricity Commission and increase renewable energy targets if returned.
Early voting for the Victorian election opens on Monday.
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