Where are the inefficiencies in my consumption? By addressing the inefficiencies, savings of between 10 and 30% can be attained.
Almost all inefficiencies are down to the fact that they are not readily visible. Examples include:
- Incorrect dimensioning of the contracted power or the tariff periods based on the integration calculation
- Incorrect latent consumption
- Consumption outside the planned schedule (lighting, heating, etc.)
- Poor selection of air conditioning settings
- Incorrect operation of capacitor banks
- Unbalanced phases
- Presence of harmonics
Further information which can reveal savings is the comparison of the consumption rates for your different facilities. Taking a chain of shops as an example, what is the consumption of the refrigerated shelves per [square] metre? What are the deviations due to?
The only real option is for continuous monitoring, a snapshot of the present situation is not enough, and that means the most important areas of consumption must be identified:
- Electrical: lighting, air conditioning, machinery, etc.
- Depending upon each case, the following are also relevant: gas, hot water, steam, water, etc.
Furthermore, analysis of consumption rates requires measurement of internal and external temperatures, or of other parameters depending on their activity, such as occupancy, production, etc.
- The use of SenNet DL160, SenNet DL161 and OWA31IETH dataloggers which facilitate concentration of data from meters and transmission via GPRS or external routers.
- The radio network which simplifies and reduces installation costs
- The use of existing meters such as fiscal meters or third-party meters.
Automatic analysis: the management software performs certain management elements for the user, such as:
- Estimation of the bill so that it may be compared with the bill from the service provider
- Trends analysis meaning that the evolution of and comparison between the actual and estimated bills can be evaluated
- Warning about any events. You can define when you wish to be advised of determined events based on the data received, as such you may be aware of possible problems in the moment they occur.
- Benchmarking or comparative analysis based on KPIs between locations in order to detect heterogeneities.
- Reports on rates
Manual analysis: personnel specialised in energy management, whether in-company or externally contracted for the service, can use their experience to detect inefficiencies relative to the development of your business and complement the automatic analysis performed by the programme.
- Modification of your contracted power and usage periods based on the maximum savings criterion in your billing.
- Advising your maintenance personnel about faults detected in the parameter settings (set points, schedules, etc.)
- Detection of machinery operating inefficiently
- Supervision of the work of maintenance contracts. Has the performance of a machine improved or declined after maintenance work?
- Plan the demand, by controlling loads to avoid that they surpass your contracted power.
- Train and educate your personnel regarding their consumption habits, through the comparison of locations based on objective consumption data.
- Programme the air conditioning systems based on weather forecasts.
- Measurement of the energetic performance required in the management of energy systems, such as the ISO 50001 certification
- Detection of inefficiencies in latent consumption
The objective proposed in step 01 has been achieved: energy bill savings of between 10 and 30%, depending on how the system is currently being managed.
However, your project is unique, your energy consumption scheme is specific to your company and buildings; therefore we invite you to contact our consultants so they may provide you with a personalised solution.