Arbor Energy vs NiSource
Side-by-side comparison of AI visibility scores, market position, and capabilities
Raised $55M Series A + $41M from Frontier (Oct 2025). $1B+ GridMarket order for up to 5 GW of turbines (Mar 2026). SpaceX-alumni team applying rocket turbomachinery to grid power.
About
Arbor Energy is developing biomass-fired rocket turbines that combust waste biomass at extremely high temperatures, producing supercritical CO2 as a working fluid that drives a turbine — making it a carbon-negative power source that captures CO2 as a byproduct rather than releasing it. The company raised $55 million in Series A financing plus $41 million from the Frontier carbon removal marketplace, and received a $1 billion+ order from GridMarket for up to 5 gigawatts of turbine capacity in March 2026 — one of the largest commercial orders in the energy startup category.
Merrillville IN regulated utility (NYSE: NI) at $5.5B 2024 revenue; $19.4B 2025-2029 capex plan for 8-10% rate base growth with Columbia Gas/NIPSCO brands and net-zero 2040 target competing with Atmos Energy for gas utility.
About
NiSource Inc. is a Merrillville, Indiana-based fully regulated utility company — publicly traded on the New York Stock Exchange (NYSE: NI) as an S&P 500 component — serving approximately 3.3 million natural gas customers and 500,000 electric customers across six states (Indiana, Kentucky, Maryland, Ohio, Pennsylvania, and Virginia) through its Columbia Gas brands and the NIPSCO (Northern Indiana Public Service Company) electric utility. NiSource employs approximately 7,700 people and operates through nearly 60,000 miles of natural gas pipeline and distribution infrastructure. In fiscal year 2024, NiSource reported operating revenues of $5.5 billion and net income of $739.7 million ($1.62 EPS), up from $661.7 million in 2023. NiSource provided 2025 non-GAAP adjusted EPS guidance of $1.85-$1.89 and announced an increased $19.4 billion capital expenditure plan for 2025-2029 targeting 8-10% rate base growth and 6-8% EPS annual growth. NiSource is committed to a net-zero emissions target by 2040, has reduced greenhouse gas emissions by approximately 72% from 2005 levels, and is on track to retire 100% of its coal assets by 2028, replacing them with utility-scale solar and renewable energy.
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