Energy monitoring and targeting (M&T) is an energy efficiency technique based on the standard management axiom stating that “you cannot manage what you cannot measure”. M&T techniques provide energy managers with feedback on operating practices, results of energy management projects, and guidance on the level of energy use that is expected in a certain period. Importantly, they also give early warning of unexpected excess consumption caused by equipment malfunctions, operator error, unwanted user behaviors, lack of effective maintenance and the like.
FIG.1: REAL TIME ENERGY ANALYTICS
The main goal is to help business managers:
- Identify and explain excessive energy use;
- Detect instances when consumption is unexpectedly higher or lower than would usually have been the case;
- Visualize energy consumption trends (daily, weekly, seasonal, operational);
- Determine future energy use and costs when planning changes in the business;
- Diagnose specific areas of wasted energy;
- Develop performance targets for energy management programs;
- Manage energy consumption, rather than accept it as a fixed cost;
The ultimate goal is to reduce energy costs through improved energy efficiency and energy management control. Other benefits generally include increased resource efficiency, improved production budgeting and reduction of greenhouse gas (GHG) emissions.
There are two main parameters facilities should consider monitoring;
- Electricity & fuel usage
- Water usage
FIG. 2: RED & BLUE LINES SHOWING WATER MONITOR ASSEMBLED TO MONITOR WATER CONSUMPTION AND FLOW RATE.
Water is a very important resource to many facilities which needs close monitoring so that it can be managed well.
70% of the Earth is covered with water but only about 1% of the world’s water is readily available for human use. Nearly 97% is salty or otherwise undrinkable. Another 2% is locked in the ice caps and glaciers. That leaves just 1% for all humanity’s needs. It means water is already not sufficient, it therefore needs to be used efficiently. Water costs has risen to an alarming level.
FIG. 3: WATER MONITOR ANALYTICS –SHOWING DAILY CONSUMPTION AND FLOW RATES.
The greatest benefit of utility real time monitoring is that it puts users in a proactive position by increasing their knowledge and giving them information needed to increase reliability of their systems. Real time energy and water monitors have capability to capture events, provide historical trending data, and can even provide control functions to alarm the system operator or possibly trigger automated responses to certain energy data points. Long-term metering provides facility owners with analytics of load changes, allowing them to track daily, weekly and seasonal variations. It also provides a comparison base to validate utility billing, and for identifying money-saving opportunities on electric bills.
Technical Manager – Eenovators Limited
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