Utilities & Energy Testing,Done by People Who've Shipped It

Most billing defects are not arithmetic mistakes in a formula. They are data problems: a meter read that arrives late and is estimated, then arrives properly and is not re-billed; a tariff change applied from the wrong effective date; a customer moved between plans mid-cycle with proration handled by two systems that disagree; a unit conversion that rounds at a different precision in the warehouse than in the billing engine.

Testing that meaningfully finds those requires production-shaped data and reconciliation across systems rather than screen-level verification. We build database and reconciliation harnesses that check metering, billing and CRM against each other, run at volume, and can be re-run in a pipeline rather than assembled by hand each cycle.

This sector runs on systems that predate most of the people maintaining them, connected by interfaces that are load-bearing and poorly documented. Change validation therefore matters more than feature coverage: what a release touches, what it could reach, and how you would know if it broke something nobody thought about. We approach that through explicit integration boundary mapping, migration dry runs at production volume with before-and-after reconciliation, and a regression gate weighted toward the paths that carry money and regulatory reporting.

The customer-facing side gets the same discipline, self-service portals, payment and meter-submission flows, and field-workforce applications on real mobile hardware, where accessibility is a genuine obligation given who these services must serve.