Fundz

Rebaba closes $4.6M seed round led by Sistafund to scale second-life battery storage systems across Europe using repurposed EV batteries.

PRIVATESep 09, 2026

Amount Raised

$4.6 Million

Round Type

Seed

SwedenManufacturingEnergyRenewable EnergySolarEnergy Storage

Investors

EIT Urban MobilitySistafund

Description

Swedish energy technology company Rebaba raised $4.6 million (SEK 44.1 million) in an oversubscribed seed round to expand its battery energy storage systems using repurposed electric vehicle batteries. The round was led by Sistafund alongside EIT Urban Mobility, with participation from existing shareholders and new European investors. Founded by Paula Runsten and Felix Kruse, Rebaba develops energy storage systems that give used electric vehicle batteries a second life for residential, commercial, and industrial applications. The company's systems help customers store locally generated energy, shift electricity consumption, reduce peak demand, and participate in grid-balancing services.

Quick answer

Rebaba raised $4.6 Million in a Seed round, dated September 9, 2026. Investors: EIT Urban Mobility and Sistafund. Rebaba is based in Sweden.

How much did Rebaba raise?
Rebaba raised $4.6 Million in a Seed round on September 9, 2026.
Who invested in Rebaba?
EIT Urban Mobility and Sistafund are named as investors in this round.
What does Rebaba do?
Rebaba is a Swedish energy technology company that develops energy storage systems using repurposed electric vehicle batteries.
Where is Rebaba based and how big is it?
Rebaba is based in Sweden. Fundz records about 2 employees.

Source: Fundz verified event record.

Who else raised in Energy and Renewable Energy around the same time

Companies in the same sectors as Rebaba that raised within 45 days of this round, from Fundz verified event records.

  • Outer Spaces raised $8M (Pre-Seed) on October 6, 2026.
  • Orb Energy raised $2M on October 3, 2026.
  • T1 Energy raised $50M (Convertible Note) on October 2, 2026.
  • NOX Energy raised $3.4M (Seed) on September 30, 2026.
  • TAR raised $120M (Series A) on September 10, 2026.
  • Credoxys raised an undisclosed amount (Series A) on September 5, 2026.

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Company Information

Company

Rebaba

Location

Sweden

About

Rebaba is a Swedish energy technology company that develops energy storage systems using repurposed electric vehicle batteries. The company combines used EV batteries with proprietary technology to provide stationary energy storage for residential, commercial, and industrial applications. Rebaba's systems enable customers to store locally generated energy, shift electricity consumption, reduce peak demand, and participate in grid-balancing services. The company offers two products: Companion, a compact cabinet-based system for residential and smaller commercial use, and Containerised, designed for larger installations.

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