Solar+Storage/Impact of Load Profile

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Impact of Load Profile on Solar+Storage Economics

Key Questions

  • Which building types have the most peaks in electricity use?
  • Do buildings with variable loads get more savings from solar+storage?
  • Can a building with a flat electricity load see savings from a solar+storage system?


  • Secondary schools, office buildings and retail stores have the most variation in electrical loads.
  • Variability in building load over the course of the year does NOT impact expected savings from solar and/or storage systems. Buildings with high variability in demand (“peaky load profiles”) are not more likely to benefit from solar with storage more than buildings with flat load profiles.
  • As technology prices decline, solar+storage systems may yield savings for most commercial building types, despite the amount of variation in load profile.

Annual Load Factor for Building Types Modeled (average acros all locations)

View Cost Point Definitions