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This paper addresses the impacts introduced on Distribution Transformer (DT) aging due to the integration of nearly Zero-Energy Buildings (nZEBs) into existing Low-Voltage Distribution Grids. The study considers a neighborhood in the Portuguese municipality of Évora where buildings are set to become nZEBs using solar Photovoltaic systems. This transition is reproduced by simulation using real pre-transition electricity demand and climate data
Powersmiths’ OPAL (Optimized Performance for the Application Load) judiciously designs its transformer family with careful attention to all above-discussed characteristics and parameters and with the electrical power system requirements in mind, allowing the power system-engineer to apply them with confidence.
The EPA estimates that 60-80 billion kilowatt hours annually are attributed to transformer losses,
at a cost of $3-4 Billion dollars, and tying up 9 days of U.S. generating capacity annually. Apart
from the cost and the wasted power distribution infrastructure, there are the environmental and
health consequences - burning coal or other fossil fuels to produce this wasted power creates
additional greenhouse gas emissions – including smog – something we see and feel every day.
Reducing transformer losses clearly has many benefits.