by Graeme » Tue 16 Sep 2014, 18:09:21
What a Difference a Day Makes! The Value of Real-Time Electricity Data
$this->bbcode_second_pass_quote('', 'T')hanks to a meta-analysis on behalf of the American Council for an Energy Efficiency Economy (ACEEE), we can now see that access to this kind of granular, real-time data on electricity use leads to significant household electricity savings.
Survey highlights importance of timeliness and granularity
The ACEEE survey aggregates multiple studies designed to evaluate the effectiveness of different types of electricity customer feedback from the past 20 years, including 61 trials from around the world: 33 from the U.S., 13 from Europe, 9 from Canada, and 3 others. Such a diverse pool allows us to draw important conclusions about consumer energy use habits while controlling for variations in culture, climate, and energy use patterns. The results are displayed in the graph below.

$this->bbcode_second_pass_quote('', 'T')he red column above represents when the energy user receives information about the overall household use once a day or week. The purple column, on the other hand, displays the savings associated with receiving appliance-specific feedback while consumption is occurring. With this level of detail, you could turn off an appliance in your house and immediately see the impact it has on demand.
From this we can gather that consumers could save 12% on their energy bills which represents a 40% increase when you go from daily household data to real-time appliance-level data. While the marked difference is partially a result of timeliness, granularity is even more important. The significant jump in savings between the orange and purple column is solely a result of including the specific details of exactly how much energy your TV or washing machine is using at any given moment.