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Growth eats power savings

This change is done by the Public almost unnoticed. The cement factory in Wildegg, in the Canton of Aargau needed today, about 700 megawatt-hours less electricity than even a few years ago – that's about as much as a small industry operation, overall. The owner, the Jura-Cement-Fabriken, replaced in 2018, several old high-performance fans for cooling in the plant.

The example shows how the industry is trying to be more efficient. So, too, the building materials company Hastag. It saves in his gravel plant in Zurich Wil, thanks to a new drive, the conveyor belt per year, around 10 percent of its electricity consumption – and, thus, of 4000 francs. The investment has a cost of 17000 francs; after a little more than four years, it pays for itself already.

The company go through the time financially but it is not only better because of the power consumption goes back. Also the production processes overall are more efficient. It has recently been pointed out to Benoît Revaz. The Director of the Federal office for energy (sfoe) at the conference engine Summit, which is focused on efficient drive systems of the Swiss industry,and a speech.

Federal Council must decide

the efforts of The industry to decide whether and how quickly the energy transition will succeed in Switzerland. The power consumption is stagnant in this country for the last 15 to 20 years, against a 60 terawatt-hours. 20 of them go to the account of the industry with approximately 2 million electric motors. Since Switzerland has decided to phase out nuclear power, account for the medium term of 20 to 25 terawatt hours.

a greater demand for electricity of about 20 terawatt hours to be Added once, as the policy aim– the electric car on the market and heat pump fossil heating systems in the large-scale replace. How Switzerland should cope with this challenge, is politically controversial. But one thing is certain: Every kilowatt-hour that is not consumed in the future, will facilitate the upcoming change.

"the EU will for the first Time a worldwide leading position in the minimum requirements for the motor efficiency."Rita Werle, Topmotors

Here is a hooks the EU. It has announced to strengthen the minimum energy performance requirements for electric motors from the year 2009. The first step takes place from July 2021, and the second from July 2023. "The EU will for the first Time a worldwide leading position in the minimum requirements for the engine efficiency," says Rita Werle of Topmotors, the Federal government's supported information platform for efficient drive systems. Switzerland will take on this aggravation, how the BFE confirmed on request. The final decision is the responsibility of the Federal Council, the need to adjust the appropriate regulation; this is expected to happen in the second half of next year, and the pure form of thing.

With the more stringent requirements for the motors, the EU estimates up to 2030 within your Mitgliedsstaaten10 terawatt-hours of electrical energy savings – in addition to the approximately 100 terawatt-hours, which are the result of the last tightening from the year 2009. And in Switzerland? Here, too, the engines are more efficient, but also the entire propulsion systems, i.e. pumps, fans and compressors.

Rita Werle estimates of the potential savings from using economic measures to implement, on average, 20 to 30 percent. The sfoe expects however, that due to the EU-initiated tightening of the electricity consumption of industrial motors by only 2 percent will decrease, so 0.5 terawatt-hours.

more and more engines sold

That the saving is larger, is located on the economic growth: The demand for industrial drive systems is increasing. "We are monitoring annually, almost 3 percent more selling engines," says energy expert, Conrad U. Brunner. In the meantime, the 180000 units per year, i.e. 9 per cent of the population are. The phenomenon is well-known: growth, eating efficiency gains, partly or entirely. But you can see it also differently: efficiency gains to prevent the power consumption increases in a growing economy.

"We can help the economy to become more efficient."Richard Phillips, BFE-expert

So is it also in this case, Because new engines require less electricity than old models, has decreased the total consumption of the industry in the last ten years, even slightly.The Federal government is trying, with training and support programmes to increase those savings from the renewal of the stock of the old drive systems resulting. "We can help the economy to be more efficient," says BFE-expert Richard Phillips. As a result, the power consumption entkopple more and more from economic growth.

Created: 04.12.2019, 08:30 PM

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