29 Dec 2025

Fort Phantom Power System Analysis-Case Studies for Notional Power Resource Mixes and Energy Storage : Results Produced Using the Analysis of Microgrid Performance, Reliability, and Resilience (AMPeRRe) Computational Model

Abstract: Analysis of Microgrid Performance, Reliability, and Resilience (AMPeRRe) is a computational model that provides quantitative results to installations and remote communities that inform them of the objectives they can achieve. Results provided by this model lead to reliable intermittent power resource implementation, optimize the set of resources within a power system, and improve reliability and resiliency outcomes. This technical report provides an example of the analysis results AMPeR-Re can produce to quantify the expected benefits and trade-offs of incorporating different power resources and energy storage in a power system. Fort Phantom, a notional installation, was used as the testbed to produce these results. The AMPeRRe model forecasts outcomes such as the power availability, fuel consumption, duty cycle, and excess energy of different power resource investment scenarios. The results produced by this model are based on notional stages of development for the Fort Phantom Consolidated Maintenance Activity (CMA) power system. This technical re-port also pro-vides an expanded set of results and comparison of outcomes from different quantities of incorporated power resources. These results can aid business case development for power systems and enable efficient, informed development.

13 Sep 2023

Cold Impacts on Vehicle Electrical Systems: Developing a Baseline for Cold Testing Military Vehicles

Abstract: Low temperatures can significantly affect vehicle operation. While many of the effects, like increased fluid viscosity and decreased battery capacity, are well documented, the impacts on the electrical system as a whole are not. The objective of this study was to investigate the impacts of temperature on the electrical systems of select military vehicles and to develop a baseline for future testing. A High Mobility Multipurpose Wheeled Vehicle (HMMWV), a Heavy Expanded Mobility Tactical Truck (HEMTT), and a four-person diesel Polaris MRZR D4 were subjected to 15°C, 0°C, and −15°C temperatures while the loads on the battery and alternator were monitored. The HMMWV and MRZR were able to start on the first try for all tests. They both showed a slight increase in vehicle load current draw from the alternator as temperatures decreased. Future testing with more iterations and at lower temperatures will help identify clearer trends and improve testing procedures. As the Army becomes more reliant on electronic systems, it is becoming increasingly important that we understand how various climates will impact them.