Fourth Power vs NiSource
Side-by-side comparison of AI visibility scores, market position, and capabilities
Raised $45M total including $20M Series A (Munich Re Ventures, DCVC, Breakthrough Energy). Integrated demo unit completing 2026. Targets 10x cheaper storage than lithium-ion.
About
Fourth Power is an MIT-originated thermal energy storage company that stores electricity as heat in graphite blocks at 2,400°C — using molten tin as a heat transfer medium and converting stored heat back to electricity via thermophotovoltaics (TPV). The company has raised $45 million including a $20 million Series A from Munich Re Ventures, DCVC, and Breakthrough Energy Ventures, and is completing its full integrated demonstration unit in 2026.
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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