It then models technologies such as solar, wind, batteries, or combined heat and power (CHP), and calculates the optimal system configuration with the lowest cost.
HOMER ENERGY BOULDER SOFTWARE
Using this information, the software can model load requirements for electric vehicles in conjunction with other critical and non-critical electric loads in a given system. HOMER Grid also incorporates characteristics of the EV charging station, such as the maximum charge rate of EV station connector (kW). The software allows a project developer to define how often the charging station is in use through average charge duration time and traffic density over the course of the year. The EV Charging Design Tool in HOMER Grid accepts inputs to describe vehicle types and charging requirements, such as EV battery size (kWh) and maximum charge rate (kW). The smart charger allows project developers to leverage HOMER Grid’s capability to model demand charge reduction in any distributed renewable energy system and apply this to an EV charging station. It prioritizes the use of renewable power and schedules charging to take advantage of grid electricity when it is at its lowest cost. The smart or deferrable charging station mode models the intelligent charging of a car or a fleet of cars to minimize the cost. HOMER Grid software addresses two types of charging scenarios when it simulates energy systems: The on-demand mode functions like an ordinary gas station, where vehicles show up to charge as quickly as possible. HOMER Grid can model how renewables and distributed generation address the growing demand for EV charging in a clean and cost-effective way. The solution is to co-locate renewables and storage with charging infrastructure. Project engineers and designers have a growing need to respond to increased demand for EV charging stations, as well as a growing awareness that electric vehicles should be charged with affordable, clean energy in order to reduce carbon emissions.
The software can model a range of applications, including an on-demand mode which charges vehicles as fast as possible, or a smart, deferrable mode where EV charging is optimized for the lowest impact on the utility bill. The new capability helps users design optimal renewable energy and storage systems to reduce utility costs – especially demand charges – of electric vehicle charging. Boulder, Colo – J– HOMER Energy by UL, a global leader in the development of standard-setting energy modeling software, today announced that HOMER Grid, software for designing grid-tied distributed energy projects, can now model how hybrid systems power electric vehicle (EV) charging stations.
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