Stem Energy($Star Peak Energy Transition Corp(STPK.US)$) is an AI-driven energy storage solutions business. This is another market poised for tremendous growth over the next few decades, with a projected $1.2T in new revenue opportunities for integrated storage that are expected to be deployed by 2050. Battery storage capacity is expected to increase 25X by 2030.

Stem focuses its technology on battery optimization and energy storage. The company already has over 900 systems operating on their Athena software. They have a 75% market share in California's behind-the-meter storage market, which the largest market in the US.

There are several of global catalysts in the energy storage industry. A few examples include the Paris Accord, Japan's net-zero emissions pledge, and California's mandate to sell only zero-emissions vehicles by 2035.

Stem competes in the same market with $Enphase Energy Inc(ENPH.US)$, as well as $SolarEdge Technologies Inc(SEDG.US)$ and $Sunrun Inc(RUN.US)$. There is a lot of opportunities for multiple winners to emerge in this space. Stem Energy is positioning itself to be one of those winners with some of the partnerships they have inked including $Apple Inc(AAPL.US)$, $Amazon.Com Inc(AMZN.US)$ and $Wal-Mart Stores Inc(WMT.US)$.

One of the main risks for Stem Energy is a high degree of execution risk as the business is still so new. They currently only have $33M in revenue, that number is expected to multiply 28X by 2025, which would put them around $1B in revenue in 5 years. The company also expects to reach profitability in 2022.