Best energy management system software
Milvian AI teamFacilities and infrastructure intelligence
Good energy management software builds a weather-normalized baseline, explains every gap from it in money, checks your utility bills and proves savings with an agreed method. Charts alone are not enough.
What EMS software has to answer
Energy management software exists to answer three questions: did we use more than we should have, why, and what did it cost? Answering the first needs a baseline that accounts for weather and occupancy. The second needs sub-metering and equipment data. The third needs the tariff.
Most tools stop at charts of consumption. DOE's Smart Energy Analytics Campaign, across about 6,000 buildings, found median savings of 4 percent from energy information systems and 9 percent from fault detection and diagnostics, so the analysis layer matters more than the display.
What to require
| Requirement | Why it matters here | Ask the vendor |
|---|---|---|
| Weather-normalized baselines. | Raw year-on-year comparisons mislead. | Show the regression and degree days behind a baseline. |
| Day-one results. | Waiting a year for a baseline delays every decision. | Can uploaded bills create the baseline? |
| Rate configuration. | Savings must be in money as well as kWh. | How do tariffs and rate changes enter the model? |
| Bill validation. | Billing errors are direct savings. | Do you compare invoices with metered data? |
| M and V method. | Savings claims need an agreed method. | Which M and V approach do you follow? |
Standards and direction
ISO 50001 requires baselines, energy performance indicators and measured improvement, and IPMVP is the common framework for measurement and verification. ENERGY STAR Portfolio Manager covers nearly 25 percent of US commercial floor space. Electricity demand grew 4.3 percent globally in 2024, according to the IEA, so tariff and demand management will matter more each year.
How to evaluate it
- Upload your billsAsk each vendor to baseline the same buildings.
- Compare the gapsSee whether vendors explain the same anomalies.
- Test bill validationRun last year's invoices against metered data.
- Agree the methodSettle M and V with finance before any project.
Where Aqueduct fits
aQ EnergySmart builds expected use by regression on historical usage plus cooling and heating degree days, from live data or uploaded bills, and rate configuration turns the gap into money. The electrical twin shows where load sits, Billing Management validates supplier invoices and separates rate from usage changes, and the same method covers gas and water.
Sources
| Source | Link |
|---|---|
| US DOE, Smart Energy Analytics Campaign | energy.gov |
| ENERGY STAR, Benchmark your building | energystar.gov |
| IEA, Electricity 2025 | iea.org |
