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Smarter Grids

Energy Management

Study Description

As a major UK retailer Tesco has committed itself to some challenging targets to reduce

its energy consumption by 2020. Having already achieved a reduction of 50% by 2008,

based off a 2000 baseline, these further energy reductions will be proven progressively

more difficult. To achieve this, Tesco has implemented energy efficiency initiatives within

their numerous stores, depots and other sites. As the energy is stretched thinner it is

more important than ever to engage the staff within the sites to visualise, in real-time,

the energy efficiency of their store. This resulted in a need for an easy to understand

interface for the non-energy expert with real-time updates, allowing comparisons to be

made between similar sites, and installed in a location frequented by staff.

EnergyICT Solution

EnergyICT’s Energy Dashboard product provides real-

time, dynamic energy monitoring tools, giving end

users such as Tesco a high-end view of their energy

efficiency. With the addition of sub-metering the user

can also monitor where efficiency can be improved.

This can be seen in the main display screen above.

EnergyICT Case Study:

Tesco Energy Dashboards

 

 

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Smarter Grids

Energy Management

Smarter Grids

Energy Management

info@ EnergyICT.comwww. EnergyICT.com

The Energy Dashboard has a number of simple displays:

The • Year To Date (YTD) Energy Consumption graph shows how many kilogrammes of carbon the site has used so far

this year compared to the same period for the previous two years.

The • Actual vs Budget Dials show the energy performance of the store for the current Tesco year to date, and the

previous whole week.

The • Energy Performance bar charts compare similar stores within the company in a league table format.

The lower Sub-metered section of the display unit can help pinpoint potential areas of energy wastage. The further into •

the green section of the dial the pointer is the more energy efficient it is, red obviously signifies that the area is using

more energy than has been forecast.

If the end users can see that one or more of the sub-metered dials is ‘in the red’, they would need to act to see if they can

improve the energy efficiency of that department. By clicking on the ‘Show Tips’ button under the relevant dial, a pop-up

screen will list practical tips on how to solve or reduce energy in that particular sub-metered area of the store.

By empowering the store staff to take control of the issues allows them to learn how to make their own store more efficient

and therefore more profitable.

 

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Smarter Grids

Energy Management

Smarter Grids

Energy Management

info@ EnergyICT.comwww. EnergyICT.com

An example of this in action was the detection of a lighting issue within the first days the Energy Dashboard went live. A close up of the

lighting dial showed that the site was using 1324kWhs a week too much.

The store personnel could not get the dial back into green even after following all the recommended ‘Tips’, so they referred the issue

to the Energy Team. Further investigation concluded that the store had installed a large number of product spot lights which were not

authorized.

Conclusion

Spot lights were removed, saving approx 70,000 kWh per year! Similar savings have also been seen in most stores which

have had Energy Dashboards installed.