Rewbi

About

Rewbi uses AI to optimize grid-connected battery storage. We generate revenue by charging when electricity is cheap and discharging when electricity is expensive. We rent battery storage for a fixed fee per month, and we earn 2x that fee in monthly revenue by dispatching the battery optimally. Today, power companies use human traders to manually track grid conditions and update the battery’s dispatch schedule. However batteries can adjust their power output 100x faster than traditional power generation (e.g. hydro, coal, nuclear, gas), with the ability to go from full-speed charging to full speed discharging in under a minute. Electricity prices change every 5 minutes, often by 300% or more. Our AI better tracks 100s of live inputs, and it makes decisions faster than a human operator (with lower overhead!), improving revenue 2x.

Founders

Thomas MargeFounder

Thomas is co-founder and CEO of Rewbi, which uses AI to optimize grid-connected battery storage. He previously founded inBalance, a YC W21 company, which was acquired by Stem (NYSE: STEM) in January of 2023. He led battery storage optimization and forecasting for Stem. He completed part of a Pure Mathematics PhD at University of Cambridge, which he left to build inBalance. He holds a Masters in Applied Mathematics and B.S.E. in Pure and Applied Mathematics from Johns Hopkins, graduating early.

Derek ModzelewskiCo-Founder and CTO

Ex. Meta and Adept | Combining AI and energy commodity trading experience to make our power grids more stable. Placed first energy commodity trades 10 years ago. Adept’s first technical hire; his AI models were used to raise over $400m in capital. Previously worked with early foundation models at Meta as an ML engineer. Holds a Masters in C.S. and B.S.E. in C.S. Applied Mathematics from Johns Hopkins, graduating early.