Energy saving



Do you know that return on investment in lighting may be less than 3 years?

  • Do you know that up to forty percent from the total costs of power consumption is spent on lighting?
  • Do you know that by optimizing the illuminating system you may achieve up to 70% of decrease in consumption of power for lighting?
  • Do you know that LED technology lights may also replace a relatively new illuminating system with fast return on investment?

 

We will prepare a study of energy savings and return on investment for you.

How can we help you to achieve savings?

  • We will carry out an analysis of the existing state of the illuminating system
  • We will propose appropriate technology for new illuminating system
  • We will make energy balances and calculate return on investment
  • We will provide a project support
  • We will carry out a new illuminating system

 

What risks are involved? How to proceed?

  • Consult us where it is suitable to use LED lights. LED lights are not appropriate for all spaces yet.
  • Unfair companies offer tendentiously proposed projects with distorted results. Be circumspect: some companies compete with each other in data concerning rate of return!
  • Technical quality of lights is not the same. Unfair companies deliver non-quality LED sources and lights - in case of unresolved temperature management of LED lights, LED life-time is significantly shortened.
  • Be careful with the choice of a partner for savings in lighting. References, company history, financial background and stability, these are important indicators. It could happen to you that there would be no person to deal with a possible complaint.

Calculation of the rate of return - 1

Description of the space under consideration:

Model corridor with sizes of 20m x 6 m and the height of 3.5m. E.g. part of the communication corridor of a department store.

 

Input parameters

Required intensity of lighting

300

lx

Electric energy price

2,2

CZK/kWh

Number of hours of operation

12

hour/day

Parameters of lights

Illuminating system

Light (fitting) used + source

Total input power of the light (fitting)

Effect of the light (fitting)

Light output of the light (fitting)

Durability life of the source of light

Original illuminating system

Built-in light equipped with compact fluorescent tubes CF-L 2x26W

56

W

51

%

3 600

lm

18 000

hours

New illuminating system

Built-in light equipped with a LED source 1x49W

53

W

98

%

3 000

lm

50 000

hours

Parameters of the original illuminating system - CF-L

Number of lights

36

pcs

Price of the light

800

CZK

Total price of the system

28 800

CZK

Input power of the light

56

W

Total input power of the system

2 016

W

Price of an exchange of the source of light (1 pc of the light)

220

CZK



Parameters of the new illuminating system - LED

Number of lights

21

pcs

Price of the light

3 375

CZK

Total price of the system

70 875

CZK

Input power of the light

49

W

Total input power of the system

1 029

W

Price of an exchange of the source of light (1 pc of the light)

1 200

CZK

 

Return on investment in the new system

4,1

years



Calculation of the rate of return - 2

Description of the space under consideration: 

Storage hall consisting of open space and shelf aisles.
51.4m x 34.3m, height 10m

 

Input parameters

Required intensity of lighting

150

lx

Electric energy price

2,2

CZK/kWh

Number of hours of operation

12

hour/day

Parameters of lights

Illuminating system

Light (fitting) used + source

Total input power of the light (fitting)

Effect of the light (fitting)

Light flux

Durability life of the source of light

Original illuminating system

Industrial luminaire equipped with metal halide lamp HIT 400W

460

W

53

%

35 000

lm

18 000

hours

New illuminating system

Light KOSSNO LED 4x47W

188

W

89

%

17 380

lm

50 000

hours

Light KOSSNO LED 2x47W

94

W

89

%

8 690

lm

50 000

hours

Parameters of the original illuminating system - HIT

Number of lights

54

pcs

Price of the light

1 600

CZK

Total price of the system

86 400

CZK

Input power of the light

460

W

Total input power of the system

24 840

W

Price of an exchange of the source of light (1 pc of the source)

600

CZK

Parameters of the new illuminating system - LED

Number of lights 188W  - (4x47W)

27

pcs

Price of the light

16 000

CZK

Number of lights 94W  - (2x47W)

27

pcs

Price of the light

8 000

CZK

Total price of the system

648 000

CZK

Total input power of the system

7 614

W

Price of an exchange of the source of light (1 pc of the source)

3 000

CZK

Return on investment in the new system

3,2

years