Tag Archive for: energy consumption

Efficiency in industrial maintenance

When we talk about energy efficiency usually we associate the concept to the installation of renewable energy support, replacement of old equipment by more modern ones with higher yields and lower consumption, implementation of energy management systems that allow control consumption and emissions, LED lighting etc.


Seldom we think that the mere work of those responsible for industrial maintaining a company can contribute, a lot, to reducing energy consumption while maintaining the same levels of production.

This is not to change equipment or make investments whose cost is usually high and return to medium or long-term, efficiency is applicable in day to day and it is necessary to lead a maintenance management of the installation through small actions involving in short, great results.


The secret is to have industrial maintenance with a holistic view, understanding that everything is not always the sum of the parts, understanding that a facility operates as a set of interconnected systems and energy gains and losses in each of the subsystems affect or benefit the rest. The result is exponential and from experience, can reach percentages of reduction in costs surprisingly high and comparable to any measure of replacement of obsolete equipment by more efficient ones, but with a substantially lower cost. We talked about a 25% reduction on average, a decent percentage to be analysed. It is, therefore, important that the owner and the responsible for running the business counts on some specialisation engineering in the field. In this sense it is necessary that engineering has knowledge and experience in facilities management and be able to implement efficiency in such management necessary to achieve the desired results. You must also provide the customer the option of buying your services through a flexible service model and focused on results.


Today, it is possible to outsource services with that approach that soon begin to be paid with the result obtained leaving a significant positive difference in several ways: cost reduction in management, workload industrial maintenance costs, energy costs, necessary equipment replacement. In addition, if you have the right support, other more intangible benefits are obtained, but no less important, such as unloading concerns knowing that someone external, impartial and focused on results, ensures the proper functioning of the systems, supporting our internal staff.

Guidelines to save energy this Christmas

During Christmas holidays, one of the most energy-consuming elements, for everyone, is the lighting of the house.

It is usual to use bright ornaments at home, which often use halogen technology, high drain. The best option is to progressively replacing it by LED technology, which preferably incorporates solar collector to run, so we are eliminating electricity consumption completely. The same happens in residential buildings with landscaped communal areas. However, in apartments we can only use LED decorative lights to save energy.

On the other hand, the most energy-consuming element during the cold months inside a home rarely focuses on lighting. Put the focus on the elements designed to heat the house, water heating, etc. such as air conditioning, the heat, central heating, etc. In that sense, it is advisable to regulate temperatures as the highest consumption occurs when there are large jumps and systems have to work twice as hard to reach the desired temperature at a given time.

  • Set the temperature between 17 and 18 degrees although we are not inside the house.
  • Set the temperature between 21 and 22 degrees when we are inside the house.
  • Set the temperature of the heater thermostat to 50 degrees in air conditioning
  • Close grids of rooms which don’t need to be heated
  • Each degree reduces consumption by 5-8%
  • With programmable thermostats to save heat, you do not need the entire volume of hot water 24h.
  • Take into account the simultaneity of consumption to avoid peak.

Save on the wrong side is to spend more for the same

In a previous post, we talked about the cost overruns in which we could incur trying to lower the price hiring our energy with a trading company. In this post, we would like to focus on raising consumer’s awareness about the importance to make the right decision when he renews, extends or replaces any system or subsystem or any element which contributes to the consumption of an installation.

SMEs struggle every day against all types of external and internal problems, subsisting in increasingly competitive and aggressive environments, where often the only element of concise comparison is the price. As energy costs have increased exponentially in recent years and is expected to continue to do so despite the steady trend of recent months, it has become one more element to consider. It is necessary that purchasing decisions take into account efficiency criteria when implementing corrective measures as well to obey technical needs, as extensions motivated by an expected production growth. If the businessman only wants to give priority to the “cost” of different offers during the purchase process over the energy consumption of those once implemented he will be mistaken, considering that when turning on the switch of what he has installed, he will have to pay the kWh consumption arising. Neither the installer responsible for the execution, nor the engineer who has designed the project, nor the manufacturer of the equipment that has sold him, will pay for him the increase in the invoice. Everyone has a different role and selection criteria should note that the above is met, but none of them will hold what we consume or pay afterwards per unit of production since only an adviser with engineering and technical advice capabilities can do this.

Applying efficiency criteria in any purchasing decision we will obtain clear advantages:

  • Ensure the return on investment by reducing consumption in the case of renovations or improvement of facilities.
  • We will have a clear forecast of energy consumption that allows us to compare between different alternatives.
  • We will reduce maintenance costs since usually selected equipment based on efficiency criteria includes the entire set of items to install: equipment, design, control elements, etc. Increasing energy efficiency means increasing productivity.
  • For every € invested we will recover a part in every kWh consumed. Therefore it is essential to apply efficiency criteria in investment over one year.

Energy efficiency is not a theoretical concept as many believe, it starts from the time when we have to undertake daily costs to upgrade facilities that use are deteriorating. The sooner we understand it, the sooner we will save energy.

Buy at a fixed price or indexed

Recently the electrical trading companies are betting on offer an indexed price, as there is a growing demand for this type of offer. It is not surprising since traditionally indexed price has always been a way to hire the most economical electrical energy.

Why is that?

To understand we can make a comparison with the banking sector. The fixed rate offered by a bank when hiring a mortgage includes detours costs and the risk of fluctuations involving loss to who sells. Indeed, a fixed price is a risk for whom provides it, such risk, let’s call it warranty, is included in the price we finally pay as an additional cost, as well for the fixed interest in the banking sector or the rate of fixed prices in the energy sector. When buying indexed price, we assume that risk. Therefore it is conceivable that it will be cheaper in the medium term. Given that contracts are signed for one year, the risk is negligible.

There is no free lunch

However, the indexed price is interesting whenever we do not charge commission high costs, also called operating costs or fee. The reasonable cost for SMEs is between 3 and 4 € / MWh hired (estimated consumption from consumer or trading company reading). Naturally this is always subject to consumption. Usually, the greater the consumption, the better trading offer.

We don’t need to understand the energy market. Let’s search a good adviser to tell us and ensure that we are paying the right price and, specially that we are optimised over our competitors.

Climaval Eficiencia energética

Climaval loyal to its thematic policy celebrates the IV Edition: Circular Economy and Energy Solutions

Avaesen remains loyal to its organizing events policy to promote the sustainability activities, energy efficiency and reduction of CO2 emissions. In the last edition, the theme focused on the hotel sector, this year will focus on the industrial sector, also in need of new ideas, towards the implementation of future European standards that seek to promote the implementation of cost saving measures and energy consumption reduction among governments and businesses.

To ensure the interest of all, they have created different programs that cover the most important issues: energy solutions, Circular economy, between social impact and economic profitability, financial instruments and success stories.

Sernoven has been invited to present its innovative consumption and impacts predicting solution for the implementation of energy saving measures, which is aimed at engineering and technical departments in big companies. However, it has preferred to wait to launch a complete module that allows greater integrity.

What is the circular economy?

It is a European initiative that aims to encourage feedback on resources use, reducing materials input and virgin waste production, closing economic and ecological loops or flows of such resources. Resources physical flows analysis comes from the known industrial ecology school of thought. It explains material flows are divided in two types:

1)     Biological nutrients, designed to be re-introduced in the biosphere without incident

2)     Technical nutrients, designed to be moved with high quality in the production system, but without returning to the biosphere.

SMEs must maintain its objective of creating value, implement sustainability policies while maintaining profitability.

The great challenge for companies dedicated to engineering and energy advice is to convince employers of the importance to implement efficiency measures and energy savings, based on its profitability. Most SMEs restrict themself to undertake those short-term impact measures, applying a corrective policy to the production process. There are several reasons that lead entrepreneurs to manage that way, and none of them is exempt from justification. However, despite the uncertainties of future justify any stagnation, it is necessary to realize that the perpetuation of a company goes through applying the balance between short-term impact measures and long-term impact. Nowadays any efficiency measure well calculated generates a guaranteed return as in the following success stories