Energy saving lighting systems

Lightning expenses comprise in average 30% from all electric energy expenses. Modern technologies help to reduce the coast for lightning and to improve light characteristics of the indoor space. This is a package of measures, comprising preliminary analysis of indoor space for ration application of lamps, picking up the energy saving light bulbs and lamps, modern optics, presence sensors, “smart” light controlling system. Systems like this consume electric energy twice less, and improve the working capacity for 10-15%. 

Repayment period is in average – 3-5 years, according to tariffs level today.   

The most actual for objects, where the light should be switched on whole day long as an emergency lighting (entrances, basements, corridors of apartment and office buildings), and also for objects where the light’s quality is of large value (educational institutions, shops). 

Energy saving light bulbs
   

Energy saving light bulbs were invented in the end of XXth century. These are compact luminescent arc lamps with the ballasts, built into lamp cap; these bulbs save up to 80 % of electric energy in comparison with classic incandescent light bulbs. 

Main advantages of energy saving lamps:

  • High coefficient of efficiency (energy saving bulbs spend electric energy 5 times less than classic incandescent bulbs wit the same light flux);
  • Instantaneous switching without blinking;
  • Uniform light distribution in bulb bowl, which helps to eliminate light’s dazzling effect;
  • Practically  imperceptible influence of voltage change in operation band 180-260 V;
  • Low heating during operational process (up to 40 C);
  • Long service life period (up to 15 000 hours);
  • 1 year guarantee;
  • “guaranteed failure notification ” (blackening of bulb’s header)/

Light emitting diode lamps (LED Lamps)
LED lamps are innovative product. Substitution of incandescent lamp for LED lamps is the key for energy saving and energy efficiency improvement. Such measures are interesting for municipalities and non-governmental organizations, industrial enterprises, storages, hotels, hospitals, building supplies markets.

Main advantages of LED lamps comparing to electric bulbs:

  • bigger light output coefficient;
  • longer service life
  • exceptionally high level of secure;
  • extremely low collision rate, received through absence of glass parts and bulb bowls;
  • high level of crash- worthiness and vibration resistance;
  • possibility of lightning installation with controlled brightness and chromaticity;
  • more bright and rich colors of lightning;
  • compactness, small sizes and small weight of light emitting diodes;
  • absence of ultraviolet and infra-red radiation in light-spectrum;
  • instantaneous switching after energizing;
  • low supply voltage level;
  • absence of quicksilver, which is harmful for the environment;
  • low operational costs in contrast to average lightning systems, requiring often retubing;

    Economic justification of incandescent light bulb for LED lamps replacement necessity

Performance comparison of the lamps

unit

Light emitting diode lamp (LED Lamp)

Fluorescent Lamp

Incandescent light bulb

1

Lamps’ maintenance and replacement necessity

no

often

very often

2

Weather and environment temperature influence

no

yes

sometimes

3

Quicksilver and other dangerous elements content

no

Yes

No

4

Service life of 1 lamp

hours

60 000

6 000

1 000

5

Energy consumption by 1 lamp, equivalent to incandescent 100W bulb

Watt

10

15

100

6

Average cost per 1 lamp

RUB

1495

200

15

7

Energy consumption per 60 000 hours

kWt*h

600

900

6000

8

Cost of used electric energy with the price 3.7 RUB per kWt*h

RUB

2 220

3 330

22 200

9

Amount of lamp needed to light the room during 60 000 hours

piece

1

10

60

10

Buying costs for lamps needed to light during 60 000 hours

RUB

1 495

2 000

900

11


Totalexpensesamount

RUB

3 715

5 330

23 100

* The calculation was conducted with the fixed price 3.7 RUB per kw*h
Modern light emitting diodes can have both cold and warm color of light emission. Small sizes provide installation in all types of constructions. Absence of ultraviolet radiation in the diode’s spectrum provides the application in places especially sensitive for electromagnetic radiation.  Predicted life service of LED comprises 3 500 hours, keeping 70% of light output and failure level less than 5%.

Energy saving in domestic conditions   

Main types of energy saving in flats and private houses can be subdivided into three sorts: direct (technical), indirect (construction and engineering) and “educational” (human). Direct types comprise: application of energy saving domestic appliances (A energy saving class), application of heaters with high efficiency coefficient, energy saving lamps, light switch-off timers, dual rate meters etc.

To indirect types one can refer, for example, right warming and lighting of the building.  The third way to save the electric energy is breeding a custom to keep all the domestic appliances switched off in passive mode. This section is dedicated to technical ways of energy saving.
The best way to save the family budget – is dual rate metering system. This is a time of the day -orientated metering system, which allows lodgers to pay less for electricity during night time (from 23:00 up to 07:00). Application of energy intensive house appliances during night time allows to reduce electricity expenses considerably.

Simple advise for domestic energy saving:

  • Boil only that amount of the water in the cattle, which you are going to drink;
  • Move the fridge to the coldest place of the kitchen, away from heating devices and cooking stove. Back panel of the fridge should not touch the wall’s surface, leave small gap between fridge and wall - (about 5 – 10 cm) for ventilation. Defrost the fridge and freezing chamber more often. Device, filled with ice, consumes more energy. Before going on vacation, switch the fridge off. Cool off the hot products to the room temperature before placing them to freezing chamber;
  • Do not switch the cooking stove beforehand, and, while cooking, use the residual heat for – switch off the burner not long before finishing the cooking process. Use burners and pans of equal diameter. Cover the frying pan and pan during cooking process.  Providing yourself with thick-walled utensils will allow the freshly cooked dish to be done at the switched off stove, using accumulated heat; 
  • If you have air- conditioner, close tide all the windows and doors, where the air- conditioner is installed;
  • Use daylight as long as possible to reduce expenses for artificial illumination.  Open the curtains wider during the daylight hours for more daylight to enter your room through the window, and during night time curtain the window off to preserve the heat loss.
  • Use chandelier with separate switch for every group of lamps. You don’t have to switch all the lamps at once, you can use only half of them. Use, when it possible local low powered light sources – scones, floor lamps, table lamps. Replacement of common incandescent lamps to energy saving lamps will help to reduce the lightning costs in 3-5 times. Expenses will be repaid in less than 1 year. Use dimmers –these devices are installed instead of switchers and regulate lamp light brightness.
  • Keep cleanness. During bottoming the house wipe bulbs and shades, wash windows and heating radiators more often;
  • Give a full load to washing machine drum during washing process. The number of laundries will reduce and therefore the number of water heating will be reduced; Install the lower temperature on temperature control device.
  • Switch all the excessive electric appliances (chargers, DVD players and TV-sets ) off the socket. Switch them on only when the need arises. Devises consume electricity even in passive mode. Switching off all the appliances will help to reduce energy consumption in average up to 100 kW*h annually and to save 500 -1 500 RUB.
  • Gradually get rid off old equipment. The more modern the equipment is, the better it uses electric energy. Foe example, fridge, made 15-20 years ago, consumes twice more electric energy than modern one.
  • During electric appliances replacement planning one should consider energy efficiency class. More energy efficient are electric appliances of A – class, and also domestic appliances energy consumption distribution: 

Name

Energy consumption %

1

Fridge

31%

2

Lightning

28%

3

Washing machine

13,5%

4

Electric cattle

8%

5

TV- set

6%

6

PC

4,5%

7

Iron

4,5%

8

Microwave oven

3%

9

Vacuum cleaner

1,5%

 

 

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