BGE Residential Pricing Plans

August 3, 2014

A quick blurb on a couple of pieces of the demand-side storage puzzle I’m working on.

First, turns out I’m going to use the Green Button sample data that I previously found. They have several of these datasets posted that may be interesting for comparison later. It took an embarassing amount of time to sort out my first time parsing an XML file. Word of advice for you data/Python peoples: don’t use ElementTree, I used BeautifulSoup and it was much simpler.

Green Button sample hourly data for inland single family residence, resampled to daily. Click here to enlarge.

Definitely nice to have a full year worth of clean data. You can also clearly see the bump up in summer usage from A/C loads.

In sorting out the demand-side storage question, I also took a look at what pricing schemes BGE has on offer. They currently have the normal residential plan (“R”), a residential time-of-use, or TOU, plan (“RL”), and a plan for electric vehicle customers (“EV”). All of the actual costs for peak, off-peak, and intermediate are found here. Obviously, there are a proverbial shit-ton of other nickel-and-dime tariffs, but since they’re paid per kilowatt-hour and aren’t tied to the actual price of electricity itself. I’m assuming for the sake of comparison that the total number of kilowatt-hours you use is independent of the pricing plan you have.

Here’s what the three pricing plans look like for weekdays in summer and non-summer periods.

BGE residential pricing plans, summer weekday.
BGE residential pricing plans, non-summer weekday.
BGE Residential Pricing Plans - August 3, 2014 - Justin Elszasz