REX

REX develops REX/Edge, marketed as a "Decision Operating System" (DecisionOS) for energy markets. Rather than presenting dashboards, forecasts or conversational assistants, the product is positioned to convert forecasts, market signals and operating constraints into a single recommended action — for example whether to dispatch, bid, buy, sell, curtail, ramp, charge or hold — with the stated goals of increasing margin, reducing imbalance exposure and improving returns per MWh.

The system is described in three layers: DecisionOS, which weighs evidence, prices alternatives and either issues a call or withholds one; the Decision Authority engine, which is deterministic so that identical inputs and policy versions yield the same output on every replay or audit; and the Decision Ledger, a signed, tamper-evident record of inputs, alternatives, confidence and reasoning intended to be inspectable by counterparties, auditors or regulators. The company frames its decision logic around three tests: whether an input is credible enough to gain influence, whether competing future scenarios remain priced rather than collapsed into a single expected case, and what the cost of being wrong would be, with the engine holding when signals are ambiguous. A stated 24-hour forecast horizon is referenced, and the company positions itself at an "L4" tier above human desks, forecasts, optimizers and AI copilots.

Business model

REX sells access to its decision engine to energy operators and works with strategic partners under a share-of-savings structure measured against a signed benchmark. Its "Direct Benchmark" offering is run at REX's own cost with no license fee, and the company states that if the engine does not create measurable value the prospect keeps the analysis.

The company references licensing to operators and share-of-savings arrangements with strategic partners, measured against a signed Direct Benchmark.