Energetic efficiency

is the amount of energy consumed, related to the size of the utility effect of a given facility, technical device or installation under typical operating conditions. Its improvement significantly reduces the consumption of energy resources (oil, gas, coal), and thus also dependence on their imports. Thanks to it, individuals and companies pay lower energy bills and the society feels an improvement in the quality of life.

* According to the Foundation for Effective Use of Energy, improving energy efficiency can give Poland:

  • reduction of annual CO2 emissions by 57.5 million, or nearly 15% of total greenhouse gas emissions in Poland
  • reduction of energy costs at end-users by PLN 35.9 billion annually
  • reduction of annual electricity generation costs from PLN 59.1 billion to PLN 48.5 billion
  • increase in the number of jobs in the energy sector by 298 thousand. full-time employees in 2011-2020.

Interesting fact : Five energy savings thanks to the replacement of a traditional bulb.

Saving energy by replacing a traditional light bulb with a compact fluorescent lamp or LED light bulb within 40,000 hours of use (ie around 30 years) (according to WWF and own calculations)

Lifetime (h) 1000 10000 40000
Power (W) with the same light quality 100 W 25 W 13 W
Purchase cost 1.2 PLN 25 PLN 110 PLN
Number of lamps 40 4 1
Total cost of purchase 48 PLN 100 PLN 110 PLN
Energy consumption (kWh) 4000 1000 520
Energy cost (0.55 gr/kWh) 2200 PLN 550 PLN 286 PLN
Total cost of use 2248 PLN 650 PLN 396 PLN

In Poland, the greatest potential for improving energy efficiency is in the construction sector. So-called Passive construction .
Passive construction is one that provides high thermal comfort with extremely low heat energy demand. At 1 m2, it is 15 kWh per year, or 1.5 liters of heating oil or 1.5 m3 of natural gas. Meanwhile, buildings from before 1966 consume 240-350 kWh (that is 16 – 23 times more than passive houses) and apartments from 1993-1997, 120-160 kWh (ie 8-10 times more). Even buildings recognized in Poland as energy efficient consume 5 times more energy than passive houses.
Passive houses create a chance of huge energy savings, and thus a significant reduction in both energy expenditure and the burden on the natural environment.