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Case history: Energy monitoring with EasyLog
Scenario
Energy costs and in particular electricity costs are constantly increasing and in the last 20 years the increase has been unprecedented. This means that companies and private individuals have to fight year by year against increasing costs that erode the profit and savings. If on the one hand the necessity of using cheaper production sources is evident, on the other hand the energy saving and its using optimization can have a significant impact on the year-end budget, too. Thanks to the energy monitoring with EasyLog it is possible to observe the energy consumption.
Requirements
Implementing policies to save energy becomes a priority, especially for energy-intensive companies. To reduce energy consumption costs, first of all we need to understand how to use the purchased energy in order to plan a more efficient use. The steps to achieve significant savings are:
a) design a monitoring network to measure energy consuption
b) collect data in centralized database
c) consult the data to establish a saving strategy
d) implement the necessary changes to achieve the desired savings
e) verify the results obtained as a result of the interventions.
f) connection with distributed acquisition modules
The solution
The measure of energy consumption, fuel and temperatures inside buildings are essential to create an energy map. Only installing some energy meters wouldn’t be enough because the measured data should be manually registered. Easylog is the ideal solution to collect the data and send them to a centralized database.
Easylog is able to collect data from all the energy meters equipped with Modbus protocol, to identify the significant data and to send them romotely on a regular basis with no need of operators.
The benefits got from energy monitoring
In the present case, the aim was to make a shopping centre more efficient. The monitoring and analysis of consumption data with EasyLog revealed two major anomalies:
• The first one: some utilities remanied on even if not needed (printers, lights, refrigerators and air conditioners);
• The second one: the operatinh temperature in common areas was excessively high in winter and too low in summer.
Calibrating temperature control and automation systems the benefit obtained was about 35%.
Partly obtained by better management of electricity utilities and especially by better thermal management. The analysis also showed that the efficiency of some systems is well below the average of similar products, probably due to the age of the device, to a non-optimal installation and to the failure point or partial operation reached. These elements that emerged from the energy monitoring activity with EasyLog can also be used later to continue the optimization process.
