--- title: How do I Adjust My Power Parameters? description: Enable Power Parameters to display the data center values --- [Skip to content](https://support.testfit.io/knowledge/power-parameters#main-content) [![](https://support.testfit.io/hs-fs/hubfs/primary%20wordmark.png?width=150&height=113&name=primary%20wordmark.png)](https://testfit.io/?hsLang=en) Open main navigation Close main navigation - - [Contact us](https://support.testfit.io/knowledge/kb-tickets/new) [Contact us](https://support.testfit.io/knowledge/kb-tickets/new?hsLang=en) Welcome to the TestFit Knowledge Base - There are no suggestions because the search field is empty. 1. [TestFit Knowledge Base](https://support.testfit.io/knowledge?hsLang=en) 2. [Site Development](https://support.testfit.io/knowledge/site-development?hsLang=en) 3. [Datacenters](https://support.testfit.io/knowledge/site-development?hsLang=en#datacenters) September 4, 2026 # How do I Adjust My Power Parameters? Your Power Parameters live in two specific locations: In the **Data Center *Buildings*** Layer, and in the properties of each data center in the ***Data Center Library.*** --- ### **Data Center Buildings** Power Parameters ![](https://support.testfit.io/hs-fs/hubfs/image-png-Sep-04-2026-07-16-17-6072-PM.png?width=370&height=680&name=image-png-Sep-04-2026-07-16-17-6072-PM.png) - **Electric Efficiency:** usable MVA from site. - **Electrical Availability (MVA): ***Mega Volt Amps -*  Available to use on site. - **(MW) Power Per Bay:** Available power generated by each bay --- ### **Building Library** Power Consumption & Generation ![](https://support.testfit.io/hs-fs/hubfs/image-png-Sep-04-2026-07-20-20-3669-PM.png?width=380&height=584&name=image-png-Sep-04-2026-07-20-20-3669-PM.png) ![image-png-Sep-04-2026-07-17-31-3988-PM](https://support.testfit.io/hs-fs/hubfs/image-png-Sep-04-2026-07-17-31-3988-PM.png?width=670&height=416&name=image-png-Sep-04-2026-07-17-31-3988-PM.png) ### Power Consumption - **Use Per-Hall Power: **Toggle on to enable power per bay. Toggle off to enable floor density efficiency mode.  - **(MW) Power Per Bay:** Available power generated by each bay - **Design PUE:** Power Usage Effectiveness. - **Floor Efficiency:** Used in density mode (Gross building area x floor efficieny) - **Target Power Density (W/sqft):** Used in density mode (IT Power = Area × Target Power Density ÷ 1,000,000 = Building Gross Area x Floor Efficiency x Target Power Density ÷ 1,000,000)   ### Power Generation - **Electrical Availability (MVA): ***Mega Volt Amps -*  Available to use on site. - **Electric Efficiency:** usable MVA from site.   --- ### Data Center Tabulations & Formulas Your Data Center BLDG/PWR information appears in the *Tabulation *tab of the data output panel and provides information about the buildings themselves and the power within ![](https://support.testfit.io/hs-fs/hubfs/image-png-Sep-30-2025-01-21-12-9629-PM.png?width=670&height=200&name=image-png-Sep-30-2025-01-21-12-9629-PM.png) - **Area** =  - **Density Mode** = Building Gross Area x Floor Efficiency  - **Per-bay Mode** = Building Gross Area (Floor Efficiency not applied) - **IT Power** =  - **Density Mode** = Area × Target Power Density ÷ 1,000,000 = Building Gross Area x Floor Efficiency x Target Power Density ÷ 1,000,000 - **Per-bay Mode** = Bays x MW per Bay - **Non-IT Power** = IT Power × max Design PUE  - **Critical Power** = IT Power + Non-IT Power - **Elec. Dist.** = Electrical Availability x Electrical Efficiency  - **Elec. Avail.** = Pass or Fail. Pass if Electrical Distribution ≥ Critical Power. 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