I received an energy report from the company that supplies natural gas and electricity to the homes and businesses in my area. I'll be giving them a call in the morning.
It has my account number on it and shows the exact dollar amount that I've spent for electricity over the past 12 months.
They compare the first 9 months of 2013 to both my usage and cost in 2012, and they compare my usage to "similar, more efficient homes in my neighborhood". In other words, in 4 of the 5 graphs and charts that they provide, they appear to be using my exact numbers, not some generic figures.
However, there is one chart with these words in the description:
"In the past 12 months, you spent $XXX on electricity. See where your electricity dollars are going."
Next to that wording they show a circle graph with my exact figure in the middle and colored sections that match the colored bars of a bar chart. Since my exact figure is included in the middle of the circle graph, it's easy to assume that the circle and bar chart are based on my exact usage.
Appliances and Lighting 71% Water Heating 21% Cooling 5% Space Heating 3%
Following those charts they suggest ways to reduce electrical usage, including lowering the water heater temperature to 120*.
Here's the problem: I have a gas water heater. How can 21% of my electricity be going to Water Heating if I have a gas water heater? How can lowering the WH temp lower my electrical cost?
Now, they do include a disclaimer at the bottom of the report that reads:
"Your energy bills and savings are estimated based on your energy use and U.S. Department of Energy benchmarks." That said, the words they use next to _my_ actual cost are "See where _your_ electricity dollars are going."
My issue is that if one part of the report is inaccurate, or at a minimum, misleading, it casts doubt on all other parts of the report. How can I assume that anything is correct when I know that at least one section of the report is inaccurate?
Sure, my monthly costs year over year might be accurate, but my usage split and therefore my savings projections can not be.