PRESS RELEASE Power Generation

Rolls-Royce receives Miami-Dade Acceptance for mtu Generator Set Enclosures

Posted on May 16, 2023

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Rolls-Royce has received the Miami-Dade County Notice of Acceptance (NOA), in addition to Florida Building Code Section 1626 certification, for a range of its mtu standby power generator set enclosures. The acceptance signifies that the structural strength of the enclosures has been successfully tested to withstand the severe wind speeds and windborne debris impacts found inside high velocity hurricane zones.

To gain Miami-Dade Acceptance, building products are laboratory-tested to meet high standards of performance under the stress of extreme wind and pressure and are manufactured according to specific quality assurance guidelines. The approval benefits power generation customers located in any high velocity hurricane zone and in areas prone to extreme wind due to severe weather. The Miami-Dade rating code for building materials and structures has become widely used as the leading standard, going beyond the Florida Building Code standards required for locales in lower velocity impact areas.  

JD Carsten, Senior Manager, Product Development for the Power Systems business unit of Rolls-Royce in the U.S, said: “Our customers inside these high velocity areas require generator enclosures that are reliable and have been constructed to meet the impact and structural requirements of the stringent Miami-Dade code. This certification is considered the gold standard in the industry for high velocity weather zones. Customers can be assured through this certification that they are purchasing a robust power generation product that can stand up to tough weather conditions in just about any location.”

The mtu enclosures, which are used to house generator sets in the 30kW to 600kW power range, successfully passed multiple rounds of debris, impact and wind pressure testing to gain the Miami-Dade NOA.  The panels sustained wind speed forces of 195 mph while remaining resistant to debris impact from dozens of Level E missile tests, consisting of nine pound, 2x4 wood studs shot at test panels at a rate of 80 feet per second. The enclosures also passed uniform static pressure tests ranging from 153 psf to -153 psf and cyclical testing leading up to ±126 psf over 670 cycles with no signs of failure or permanent damage.

Carsten said: “Our standby power generation systems are most often used in mission critical applications, where it is essential that if the main power fails, our systems take over. This certification is just one more reason to trust our mtu systems to perform as expected, even in the most severe weather conditions.”

A video of the debris, impact, and wind pressure testing mtu enclosures underwent to gain Miami-Dade Acceptance is available at:

About Rolls-Royce Holdings plc

  1. Rolls-Royce develops and delivers complex power and propulsion solutions for safety-critical applications in the air, at sea and on land. Our products and service packages enable our customers to connect people, societies, cultures and economies together; they meet the growing need for power generation across multiple industries; and enable governments to equip their armed forces with the power to protect.
  2. Rolls-Royce has a presence in 48 countries and customers in more than 150, comprising over 250 commercial large aero engine customers, 160 armed forces and navies and approximately 40,000 active Power Systems customers. We are committed to becoming a net zero company by 2050 and we support our customers to do the same.
  3. Annual underlying revenue was £15.4bn in 2023, underlying operating profit was £1.6bn and free cash flow £1.3bn.  
  4. Rolls-Royce Holdings plc is publicly traded company (LSE: RR., ADR: RYCEY, LEI: 213800EC7997ZBLZJH69).
  5. Rolls-Royce Power Systems is headquartered in Friedrichshafen in southern Germany and employs more than 10,500 people. The product portfolio includes mtu-brand high-speed engines and propulsion systems for ships, heavy land, rail and defence vehicles and for the oil and gas industry. The portfolio also includes diesel and gas systems and battery containers for mission critical, standby and continuous power, combined generation of heat and power, and microgrids. With its climate friendly technologies, Rolls-Royce Power Systems is helping to drive the energy transition.


Jennifer Riley Spokeswoman North and Latin America
+1 248 560 8488