Light Energy Calculator

DownloadSend to Sales
Room
Select room...
Current light source
Select light source...
Control method

Control options

Choose the control option which matches your current or desired light setup.

Always on
The light source is always on 24 hours a day with no option to turn it off.

Manual switch
The light source can be toggled with a physical switch.

Daylight sensor
‍The light source turns on when the daylight sensor detects low ambient light levels, signaling that it’s getting dark.

Motion sensor
‍The light source turns on when motion is detected in the vicinity.

Daylight and motion
‍The light source is controlled by a combined control unit which both detects daylight and motion.

Select control method...
Power per light source
{NUM} W
Total power incl. reactor
{NUM} W
Yearly kWh
{NUM} kWh
Select light source...
ID: 
Control method
Select control method...
Power per light source
{NUM} W
Total power incl. reactor
{NUM} W
Yearly kWh
{NUM} kWh
Energy savings
Financial Savings
Energy Savings
Existing facility
New
Annual energy usage
kWh
kWh
Annual CO2 emissions
kg CO2
kg CO2
Energy savings percentage
%
Annual energy savings
kWh/year
Annual CO2 savings
kg CO2 / year
Annual savings approximate driving {num} km in an electric car — or {num} trips around the Earth at equator.
Accumulated kWh
Accumulated savings
Financial Savings
Current ongoing costs
New
Light sources
Price per light source
{cur}
N/A
Cost of replacement per fixture
{cur}
N/A
Annual lamp replacements
N/A
Annual cost for light sources
{cur}
N/A

Annual cost for new light sources

We omitted annual light source costs as their exceptionally long 100,000-hour lifespan minimizes replacement needs, making the impact on yearly expenses negligible for this calculation.

Total annual kWh
kWh
kWh
Price / kWh
{cur}
{cur}
Total annual energy cost
{cur}
{cur}
Total annual cost
{cur}
{cur}
Annual savings
{cur}
Investment

Investment calculation

The fittings and installation costs are used to calculate the Return on Investment (ROI). They are added as a one-time cost when switching to Solar Light.

The ROI is the amount of time until the annual savings accumulatively surpass the amount of money spent on the new fittings and installation.

Fittings
{cur}
Installation
{cur}
Total
{cur}
ROI
years

The result of this calculation is an estimate. Actual savings may differ depending on fluctuations in energy prices and other external factors.

Ready to get started?

Contact our sales team to learn more about how to Solar Light can help you cut costs and save energy.

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Light Calc Global Settings and Variables

Valid Room Type IDs:

industri
;
skole
;
trappeopgang
;
sportshal
;
restaurant
;
butik
;
garage
;
kontor
;
hospital
;
hotel
;

Translate the text strings marked with the yellow background below.

Currency
DKK
Decimal separator
,
Thousand separator
.
Base URL (end with a '/' )
This is used for the product URL which will be a combination of {BASE_URL} + {PRODUCT_SAP} resulting in a link like: https://solar.se/1200196076/
https://solar.dk/
kWh to kg CO~2 factor
(Source: Excel sheet. Based on emissions in Sweden which is much lower than the global average.)
kg CO2 / kWh
Average energy consumption of full electric vehicles (for comparison example) Source
0.189
kWh/km
Earth circumference at equator. Source
40075
km

Chart - Strings

Translate the text strings marked with the yellow background below.

Terms
Attribute for query selector
Localised
Year
[data-chart-string="year"]
År
Years
[data-chart-string="years"]
År
Existing lights
[data-chart-string="existing-lights"]
Eksisterende lys
New lights
[data-chart-string="new-lights"]
Nye lys
Accumulated energy usage
[data-chart-string="energy-usage"]
Akkumuleret energiforbrug
Savings
[data-chart-string="savings"]
Besparelse
Accumulated energy savings
[data-chart-string="energy-savings"]
Akkumuleret energibesparelse

Chart - ROI

Title
Data - Year should be 0 - 10
Old lights
{year} * 
{OLD-total-annual-cost}
{cur}
New lights
{NEW-investment}
+ {year} * 
{NEW-total-annual-cost}
{cur}

Chart - Accumulated energy usage

Title
Data - Year should be 0 - 10
Old lights
{year} * 
{OLD-energy-usage}
kWh
New lights
{year} * 
{NEW-energy-usage}
kWh

Chart - Accumulated energy savings

Title
Data - Year should be 0 - 10
Savings
{year} * (
{OLD-energy-usage}
-
{NEW-energy-usage}
)
kWh

Room data

Room name
On hours
Room type
Factor
Always on
Factor
Manual switch
Factor
Daylight Sensor
Factor
Motion Sensor
Factor
Daylight & Motion
Trappeopgang
-
Almindelige butiksarealer < 30 m
2500
trappeopgang
1
1
1
0.9
0.9
Skole
-
Aula
2000
skole
1
0.8
0.64
0.75
0.48
Trappeopgang
-
Bolig postkasser – 200 lux
2500
trappeopgang
1
1
1
0.4
0.4
Trappeopgang
-
Bolig trapper – 100 lux
2500
trappeopgang
1
1
1
0.4
0.4
Butik
-
Butik – 300 lux
5000
butik
1
1
1
1
1
Butik
-
Butik – 500 lux
5000
butik
1
1
1
1
1
Kontor
-
Depot
2500
kontor
1
0.3
1
0.33
0.33
Sportshal
-
Depot
4000
sportshal
1
0.3
1
0.33
0.33
Kontor
-
Enkeltmandskontor 1p 8-12m2
2500
kontor
1
0.8
0.56
0.75
0.42
Kontor
-
Enkeltmandskontor 1p < 8m2
2500
kontor
1
0.8
0.56
0.75
0.42
Industri
-
Fin – 750 lux
4000
industri
1
1
0.87
1
0.87
Sportshal
-
Færdselsarealer < 3 m højde
4000
sportshal
1
1
0.71
0.75
0.5325
Sportshal
-
Færdselsarealer < 6 m højde
4000
sportshal
1
1
0.71
0.75
0.5325
Kontor
-
Gang
2500
kontor
1
1
0.57
0.75
0.4275
Skole
-
Gang
2000
skole
1
1
0.57
0.55
0.3135
Hospital
-
Gang - OP-afd
5000
hospital
1
1
1
1
1
Hospital
-
Gang - normal
5000
hospital
1
1
1
1
1
Hotel
-
Gang uden vinduer
5000
hotel
1
1
0.9
0.75
0.675
Industri
-
Grov – 300 lux
4000
industri
1
1
0.85
1
0.85
Skole
-
Grupperum
2000
skole
1
0.9
0.82
0.89
0.7298
Hotel
-
Hotelværelse
5000
hotel
1
0.6
0.71
0.67
0.4757
Garage
-
Ikke-offentlige kontorer – 75-100 lux
2500
garage
1
1
1
0.1
0.1
Garage
-
Ind-udkørsel – 300 lux
5000
garage
1
1
1
0.3
0.3
Skole
-
Klasseværelse
2000
skole
1
0.95
0.82
0.79
0.6478
Trappeopgang
-
Kontor < 30 m2
2500
trappeopgang
1
1
1
0.4
0.4
Hospital
-
Kulvert
5000
hospital
1
1
0.9
0.45
0.405
Hotel
-
Køkken
5000
hotel
1
1
1
1
1
Restaurant
-
Køkken
2500
restaurant
1
1
1
1
1
Restaurant
-
Køkken/depot
2500
restaurant
1
0.7
1
0.86
0.86
Butik
-
Kølelager – 200 lux
5000
butik
1
1
0.9
0.55
0.495
Industri
-
Lager lastning – 200 lux
4000
industri
1
1
0.9
0.95
0.855
Industri
-
Lager pakning – 300 lux
4000
industri
1
1
0.9
0.95
0.855
Butik
-
Lager – 300 lux
5000
butik
1
1
0.9
0.95
0.855
Industri
-
Lagergang højlager
4000
industri
1
1
0.9
0.75
0.675
Industri
-
Lagergang lavlager
4000
industri
1
1
0.9
0.75
0.675
Hotel
-
Lobby
5000
hotel
1
1
1
1
1
Industri
-
Maleri
4000
industri
1
1
1
0.9
0.9
Industri
-
Mellem – 500 lux
4000
industri
1
1
0.86
1
0.86
Industri
-
Mindre lokale – 300 lux
4000
industri
1
1
0.85
0.9
0.765
Kontor
-
Mødelokale
2500
kontor
1
0.7
0.77
0.71
0.5467
Garage
-
Offentlige butiksarealer – 150 lux
5000
garage
1
1
1
0.3
0.3
Sportshal
-
Omklædning
4000
sportshal
1
0.7
1
0.86
0.86
Hospital
-
Operation
5000
hospital
1
1
1
1
1
Skole
-
Opholdsrum
2000
skole
1
1
0.82
0.6
0.492
Kontor
-
Pauserum mindre
2500
kontor
1
0.7
0.74
0.86
0.6364
Kontor
-
Pauserum større
2500
kontor
1
0.7
0.82
0.86
0.7052
Restaurant
-
Personalerum < 30 m2
2500
restaurant
1
0.7
0.81
0.86
0.6966
Butik
-
Personalerum mindre
5000
butik
1
0.7
0.79
0.86
0.6794
Butik
-
Personalerum større
5000
butik
1
0.7
0.85
0.86
0.731
Hospital
-
Pleje/patientstue
5000
hospital
1
1
0.75
1
0.75
Hospital
-
Pleje/patientstue - multifunktion
5000
hospital
1
1
0.9
0.64
0.576
Hotel
-
Spisesal
5000
hotel
1
1
0.85
1
0.85
Restaurant
-
Spisesal
2500
restaurant
1
1
0.86
1
0.86
Sportshal
-
Sportshal
4000
sportshal
1
1
0.84
0.7
0.588
Kontor
-
Storrumskontor – enkeltmandskontor > 12m2
2500
kontor
1
1
0.77
0.9
0.693
Butik
-
Supermarked – 800 lux
5000
butik
1
1
1
1
1
Kontor
-
Toilet
2500
kontor
1
0.3
1
0.33
0.33
Hotel
-
Toilet
5000
hotel
1
0.3
1
0.33
0.33
Hospital
-
Undersøgelse – 500 lux
5000
hospital
1
0.8
0.75
0.88
0.66
Hospital
-
Venteværelse
5000
hospital
1
1
1
1
1

Old lights

Light name
Drive Factor
Lifetime (Hours)
Wattage (W)
Replacement lights
Valid Room Types
Lysstofrør T5 54W
1.2
20000
54
1200686312; 1200263914
industri; garage; hotel; restaurant
Lysstofrør T5 80W
1.2
20000
80
1200263917; 1200686312; 123456789
hotel; restaurant; garage; butik; hospital; industri; kontor; skole; sportshal
Blandingslampe 230V 100W
1
20000
100
Blandingslampe 230V 160W 3300-3600K
1
20000
160
Blandingslampe 230V 250W
1
20000
250
Blandingslampe 230V 250W Ra61-72
1
20000
250
Glødelampe 230V 100W
1
20000
100
Glødelampe 230V 150W
1
20000
150
Glødelampe 230V 15W
1
20000
15
Glødelampe 230V 200W
1
20000
200
Glødelampe 230V 25W 2700K
1
20000
25
Glødelampe 230V 60W
1
20000
60
Glødelampe 230V 75W
1
20000
75
Halogenlampe 12V 20W
1.2
20000
20
Halogenlampe 12V 20W 3200K
1
20000
20
Halogenlampe 12V 20W Ra100
1
20000
20
Halogenlampe 12V 20W koldlysreflektor
1
20000
20
Halogenlampe 12V 35W
1
20000
35
Halogenlampe 12V 50W
1
20000
50
Halogenlampe 12V 50W 36°
1
20000
50
Halogenlampe 12V 50W alu
1
20000
50
Halogenlampe 230V 35W
1
20000
35
Halogenlampe 230V 40W
1
20000
40
Halogenlampe 230V 40W alu
1
20000
40
Halogenlampe 230V 50W 2800K
1
20000
50
Halogenlampe 230V 50W Ra100
1
20000
50
Højtryksnatriumlampe 1000W
1
20000
1000
Højtryksnatriumlampe 100W
1
20000
100
Højtryksnatriumlampe 100W Ra25
1
20000
100
Højtryksnatriumlampe 150W
1
20000
150
Højtryksnatriumlampe 150W 2000K
1
20000
150
Højtryksnatriumlampe 150W 2000K Ra20
1
20000
150
Højtryksnatriumlampe 250W
1
20000
250
Højtryksnatriumlampe 250W 2000K
1
20000
250
Højtryksnatriumlampe 400W
1
20000
400
Højtryksnatriumlampe 400W Ra23-25
1
20000
400
Højtryksnatriumlampe 50W
1
20000
50
Højtryksnatriumlampe 70W
1
20000
70
Induktionslampe 100W
1.2
20000
100
Induktionslampe 150W
1.2
20000
150
Induktionslampe 165W
1.2
20000
165
Induktionslampe 55W
1.2
20000
55
Induktionslampe 70W
1.2
20000
70
Induktionslampe 85W
1.2
20000
85
Kompaktlysrør 10W
1.2
20000
10
Kompaktlysrør 10W
1.2
20000
10
Kompaktlysrør 11W
1.2
20000
11
Kompaktlysrør 11W
1.2
20000
11
Kompaktlysrør 11W 2700K
1.2
20000
11
Kompaktlysrør 120W 3000-4000K Ra82-120
1.2
20000
120
Kompaktlysrør 13W
1.2
20000
13
Kompaktlysrør 13W
1.2
20000
13
Kompaktlysrør 14W
1.2
20000
14
Kompaktlysrør 14W Ra82-14
1.2
20000
14
Kompaktlysrør 14W Ra82-15
1.2
20000
15
Kompaktlysrør 15W
1.2
20000
15
Kompaktlysrør 17W 3000-4000K Ra82
1.2
20000
17
Kompaktlysrør 18W
1.2
20000
18
Kompaktlysrør 18W
1.2
20000
18
Kompaktlysrør 18W
1.2
20000
18
Kompaktlysrør 20W 2700K
1.2
20000
20
Kompaktlysrør 23W Ra82
1.2
20000
23
Kompaktlysrør 24W
1.2
20000
24
Kompaktlysrør 24W
1.2
20000
24
Kompaktlysrør 26W
1.2
20000
26
Kompaktlysrør 26W
1.2
20000
26
Kompaktlysrør 32W
1.2
20000
32
Kompaktlysrør 32W
1.2
20000
32
Kompaktlysrør 36W
1.2
20000
36
Kompaktlysrør 36W
1.2
20000
36
Kompaktlysrør 40W
1.2
20000
40
Kompaktlysrør 40W
1.2
20000
40
Kompaktlysrør 42W
1.2
20000
42
Kompaktlysrør 42W
1.2
20000
42
Kompaktlysrør 55W
1.2
20000
55
Kompaktlysrør 55W
1.2
20000
55
Kompaktlysrør 57W
1.2
20000
57
Kompaktlysrør 57W
1.2
20000
57
Kompaktlysrør 5W
1.2
20000
5
Kompaktlysrør 5W
1.2
20000
5
Kompaktlysrør 60W
1.2
20000
60
Kompaktlysrør 7W
1.2
20000
7
Kompaktlysrør 7W
1.2
20000
7
Kompaktlysrør 80W
1.2
20000
80
Kompaktlysrør 80W
1.2
20000
80
Kompaktlysrør 85W
1.2
20000
85
Kompaktlysrør 8W
1.2
20000
8
Kompaktlysrør 9W
1.2
20000
9
Kompaktlysrør 9W
1.2
20000
9
Kompaktlysrør W23
1.2
20000
23
Kompaktlysrør W30
1.2
20000
30
Kviksølvlampe 250W
1
20000
250
Kviksølvlampe 400W
1
20000
400
Kviksølvlampe 50W
1
20000
50
Kviksølvlampe 80W 3300-4100K
1
20000
80
Lysstofrør T16 20W
1.2
20000
20
Lysstofrør T16 22W
1.2
20000
22
Lysstofrør T16 40W 2700-6500K
1.2
20000
40
Lysstofrør T16 40W 2900-6200K
1.2
20000
40
Lysstofrør T16 55W Ra85
1.2
20000
55
Lysstofrør T16 60W
1.2
20000
60
Lysstofrør T16 65W Ra51-70
1.2
20000
65
Lysstofrør T5 120W
1.2
20000
120
Lysstofrør T5 14W 2700-6500K
1.2
20000
14
Lysstofrør T5 21W Ra85
1.2
20000
21
Lysstofrør T5 24W
1.2
20000
24
Lysstofrør T5 28W TA25°-35°
1.2
20000
28
Lysstofrør T5 35W
1.2
20000
35
Lysstofrør T5 39W
1.2
20000
39
Lysstofrør T5 49W
1.2
20000
49
Lysstofrør T5 8W
1.2
20000
8
Lysstofrør T5 95W
1.2
20000
95
Lysstofrør T8 18W
1.2
20000
18
Lysstofrør T8 36W 2700-6500K
1.2
20000
36
Lysstofrør T8 58W Ra85
1.2
20000
58
Mastercolour-lampe 150W
1.2
20000
150
Mastercolour-lampe 20W
1.2
20000
20
Mastercolour-lampe 33W
1.2
20000
33
Mastercolour-lampe 35W
1.2
20000
35
Mastercolour-lampe 70W
1.2
20000
70
Metalhalogenlampe 1000W
1.2
20000
1000
Metalhalogenlampe 100W
1
20000
100
Metalhalogenlampe 150W 4000-4500K
1
20000
150
Metalhalogenlampe 2000W
1.2
20000
2000
Metalhalogenlampe 250W
1.2
20000
250
Metalhalogenlampe 250W Ra69
1
20000
250
Metalhalogenlampe 400W
1
20000
400
Metalhalogenlampe 400W
1.2
20000
400
Metalhalogenlampe 70W
1
20000
70
WhiteSon-lampe 100W
1
20000
100
WhiteSon-lampe 35W 2500K
1
20000
35
WhiteSon-lampe 50W
1
20000
50
WhiteSon-lampe 50W Ra81-83
1
20000
50

NEW lights

Light name
Order
Drive Factor
Lifetime (Hours)
Wattage (W)
Product ID (SAP)
Valid Room Type IDs
SWEA23 LINS 85W 14072LM 4K 110°
8
1
100000
85
1200263917
industri; garage
SWEA23 LED LINS 60W/10200LM 110° DA 4K
5
1
100000
60
1200263914
industri; garage; hotel; restaurant
Test light source in all room types
3
1.2
100000
123
123456789
hotel; restaurant; garage; butik; hospital; industri; kontor; skole; sportshal
Another light
3
1
100000
321
98765432
hotel
CRAFTER G2 78W 13350LM 4K CWL EL-DS6
1
100000
78
1200686312
industri; hotel
No items found.