The Power Impact Assessment
Know what your power is really costing you.
Utilities deliver voltage across an acceptable range. Equipment, however, is designed around specific rated operating conditions. Where delivered voltage consistently differs from those conditions, equipment can experience additional electrical and thermal stress.
A Power Impact Assessment measures that gap at your service entrance and delivers the findings as a Power Impact Report™ — what it costs, where the risk sits, and what to do about it.
Sound familiar?
Different symptoms. One often-overlooked contributor.
When incoming voltage doesn’t match equipment design conditions, the damage scatters across unrelated systems — and never names its cause.
LED drivers failing prematurely?
Driver electronics are among the first components to show sustained overvoltage.
Elevators failing?
Drive faults and nuisance service calls often trace back to incoming power quality.
VFDs underperforming?
Variable-frequency drives trip and derate when supply voltage runs outside design limits.
Failures you can’t pinpoint?
Scattered, unexplained breakdowns are a classic signature of a service-entrance problem.
Warranties not being honored?
Manufacturers can decline claims when equipment operates outside its rated voltage.
Equipment failing before its expected life?
Assets replaced ahead of schedule pull capital spending forward year after year.
There’s only one way to know power’s true impact: measure it.
How the assessment works
Measured at the entrance. Benchmarked against design. Translated into dollars.
The assessment is an in-depth study of your building’s electrical conditions, measured where power enters the property and reported in the language of capital planning.
Study of electrical conditions
Metering at the service entrance captures the power your building actually receives — voltage level and how much it varies over time.
Benchmarking against standards
Delivered voltage is compared with utility standards and your equipment’s nameplate design window — then placed in the optimal, moderate, or severe risk zone.
The Power Impact Report™
Findings arrive as decisions, not raw data: quantified impacts on maintenance, energy, emissions, and capital risk — with an actionable path forward.
The deliverable
A report built for decisions, not data.
Most power-quality studies stop at raw measurements. The Power Impact Report™ benchmarks your electrical conditions against industry standards and equipment design ratings, then translates what it finds into four things you can act on.
ILLUSTRATIVE SAMPLE · RANGES FROM THE CAPITAL PROTECTION STUDY, JUNE 2026
Maintenance & repair savings
What excess voltage is adding to maintenance, repair, and replacement spending — and the reduction available.
Energy savings
Where voltage alignment reduces consumption, with estimates grounded in your measured conditions.
Greenhouse gas savings
The emissions reduction that follows from lower energy use, stated in terms your sustainability reporting can use.
Risk mitigation
Which systems carry the exposure, how far your voltage sits from design, and the recommended path to fix it.
If the report finds misalignment, the fix is already engineered: SmartGATE.
The next step
Ready to find out how your buildings are impacted?
Schedule a Power Impact Assessment. Legend Power measures your incoming power, benchmarks it against your equipment’s design conditions, and delivers a clear financial picture of the gap.