Little things such as installation of efficient light bulbs, computer shutdown, new windows and insulation can help to achieve monthly saving of significant amount of money.
The first thing you must do if you want to reduce energy consumption, and therefore save money, is that all appliances should be completely off when not in operation. This is especially true for computers and monitors, chargers for mobile phones and cameras.
The second step is to purchase efficient light bulbs. They spend five times less energy and lasts 8 times longer than ordinary light bulbs. Of course, shut down the lights when not in the room. You will feel this on your annual cost.
Every appliance in the apartment should be an energy class A or A +. These devices consume up to 45% less energy than energy grade D. This means that on every appliance you can save 100 to 200 kuna annually, so now calculate depending on the number of devices you have in the apartment.
We arrive to the heating and cooling. Do not exaggerate with air conditioning because it is not good for health, but note that the cooling of only one degree spends 3-5% of the total energy. When buying make sure that the climate device is of the class A and consider buying a device with inverter because it achieves savings of 20 to 40%. When we talk about heating obtain thermostats for radiators. This way you can save up to 20% and if you decrease the temperature for only 1 degree you can save about 5% of energy.
A little bit more expensive investment is to change the windows. Windows you want have double or triple glazing. It would be good that windows also have Low-e coating on the inner side, as well as a quality framework that does not lose heat. These windows are 20% more expensive, but they have 50% lower heat losses.
The next more expensive step is good insulation, especially in private homes without the facade of old flats. With good insulation and windows you can cut your energy costs in half. Listen to the architects and engineers when they give you advice for insulation.
If you want to go all the way then install solar panels. With them you can completely remove the cost of heating water in the summer and reduce energy consumption 30-60% during the winter.