Page Comparison

Overview

A homeowner’s typical usage is pulled based on the address.  For every EE product added to the project, a percent reduction is calculated based on the percent better than the standard.  The percent reduction is pulled directly from EnergyStar data on a per appliance basis. The percent reduction is applied directly to the end use consumption for the usage category directly connected to the EE product.  Applying the reduction gives the post installation usage, and impact is directly shown in the usage/production charts.  

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Note: not all EnergyStar datasets contain information about the american standard of consumption/usage. 

Calculation Methods

For each hour at a specific location, we want to estimate how much energy is used by the homeowner for an equipment type. Then we want to estimate the reduction in usage the homeowner would see from upgrading their equipment.

Typical Load Breakdown

Get the typical hourly shape of usage by type (AC, Heating, Lighting, etc.) as a percentage of all usage

• TMY Typical

• Explore other datasets (PSM3/NSRB??)

• What are the exact equipment/usage categories we need?

  • This dataset might not have them

  • If they dont we need to find typical profiles somewhere else or generate them ourselves

• Store data in Solar DB for each station

Equipment Specific Reduction

Get estimated % reduction in equipment type specific usage from upgrading to specific equipment (i.e. A typical older model uses 1250kWh/yr and with the LG 2018 29.7 Cu Ft fridge you would now use 500kWh/yr, so the reduction for that piece of equipment is 60%.

• Energy Star Data

• Example entries

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