Fondo · Feb 2026
Later launch coverage summarizing the product, founders, and ERCOT / battery-dispatch positioning.
Company research
Public company, workplace, funding, and market signals
Updated Jul 29, 2026
Overview
Rewbi is a San Francisco-based, YC S24 climate/energy startup using AI to optimize grid-connected battery storage. Public sources describe it as an active power company that rents battery storage for a fixed monthly fee and uses software to dispatch batteries more profitably while stabilizing the grid; latest market sources point to about $4.5M raised overall, though earlier public profiles still show older totals.
Primary product
AI battery storage optimization / grid-connected battery dispatch platform
Founded
2024
Headquarters
660 Indiana St, San Francisco, California 94107, United States
Team size
1-10 employees
Industry
Renewable Energy Power Generation
Sub-industry
Battery storage optimization / energy storage
Offices
660 Indiana St, San Francisco, California 94107, United States
Business model
fixed monthly battery rental
AI-driven dispatch optimization / revenue share
project-level capital / offtake support
Funding
Stage
Seed
Total raised
$4.5M
Latest round
Seed · May 2025
Latest amount
$4M
May 2025
Sep 2024 · Y Combinator
Jan 2024 · Y Combinator
People & investors
Investors
Aera
Alex Goldstein
Amir Zohrenejad
Andrew Arkhipov
Anthony De Vito
Anuj Saigal
Benjamin Bryant
Biao Boey
Chris Hopper
Climate Capital
Collab Fund
Elizabeth Linardos
General Catalyst
Great Wave Ventures
Ian Mc Henry
Jacob Monroe
Jonathan Gheller
Larsh Johnson
Lauren Rothwell
Matthew Verminski
Mohamed Musbah
Nathan Woodard
Olive Tree
Orange Collective
Rebel Fund
Sand Hill North
Sharo Atmeh
SurgePoint
William Yu
Y Combinator
Work & culture
Founder-led, technically deep, mission-driven startup focused on grid reliability, lower-carbon power, and energy-market optimization; no public benefits package or compensation bands were found.
Compensation
No public compensation bands or detailed benefits package were found; YC Jobs currently shows no open roles.
Product & market
Pricing
Fixed monthly battery rental fee plus monetization from optimized dispatch; project financing / offtake support is also offered
Differentiators
- —Claims more than 2x the monthly rental fee in dispatch revenue
- —AI tracks hundreds of live inputs and updates dispatch decisions faster than humans
- —Battery systems can respond far faster than traditional generation, enabling minute-level optimization
- —Registered power company in ERCOT / active operator in Texas
- —Already states it is profitable from balancing the grid
Technology
AI / machine learning
grid-connected battery storage optimization
battery dispatch optimization
ERCOT market participation / registration
Wix-based website/CMS
Customers
battery storage developers
battery storage project owners
domestic and international storage offtake counterparties
ERCOT / Texas grid market participants
Competitors
Stem
battery storage optimization platforms
energy trading / dispatch software vendors
Scale & contact
Estimated revenue
≈$330K annual revenue (estimated ARR; public sources conflict on firmographics and funding totals)
Estimated monthly visits
786
Traffic estimate as of Jun 2026
Latest news
Y Combinator on LinkedIn · May 2025
YC repost announcing the $4M seed and summarizing Rewbi's battery-storage revenue optimization model.
Signalbase · May 2025
Third-party funding article covering the round and the company’s AI optimization thesis.
Rewbi blog · Apr 2025
Company announcement of a $4M seed round, with a broad climate/VC and angel syndicate and a description of the battery-storage rental / dispatch model.
Y Combinator · Aug 2024
YC launch describing the product, ERCOT registration, and the core market thesis around faster battery dispatch and higher revenue per storage asset.
Jobs and careers at Rewbi
0 jobs at Rewbi
No open positions
Check back later for new openings