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Saving Energy ... Saving our Future
Kira Borghorst
Inka Bürger
Saskia Heuer
Katharina Harlaß
Enno Fischer
Gymnasium Sulingen, Germany
Contents
• Gymnasium Sulingen
• Climate and Weather data
• Energy consumtion
• Energy Mix
• Saving Energy
• Carbon Footprint
SulingenLower Saxony
SulingenOur School
Climate and weather data
monthly values for the 5-year period 2003 to 2008 for mean temperature,
mean precipitation, average wind speed, mean relative humidity and
hours of sunshine
Mean Temperature (2003- 2008)
-5,00
0,00
5,00
10,00
15,00
20,00
25,00
30,00
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
month
tem
pe
ratu
re / °
C
Malta Germany Poland Hungary
Climate and weather data
Relative Humidity (2003 -2008)
0,00
10,00
20,00
30,00
40,00
50,00
60,00
70,00
80,00
90,00
100,00
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
month
Perc
ent
Malta
Hungary
Germany
Sun Shine Hours (2003-2008)
0
2
4
6
8
10
12
14
Jan Mar May Jul Sep Nov
month
tim
e p
er
day /
h
Malta
Hungary
Germany
Energy consumption
Gas consumption - Gymnasium Sulingen(average 2003 - 08)
0,00
2000,00
4000,00
6000,00
8000,00
10000,00
12000,00
14000,00
16000,00
18000,00
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
am
ou
nt
/ m
³
Energy consumption
Electricity consumption - Gymnasium Sulingen(average 2003 - 08)
0
2000
4000
6000
8000
10000
12000
14000
16000
18000
20000
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
en
erg
y /
kW
h
Energy consumption
comparison between gas consumption at Gymnasium Sulingen and air
temperature
Gas consumption and temperature
0
2000
4000
6000
8000
10000
12000
14000
16000
18000
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Decmonth
co
nsu
mp
tio
n (
m³)
0
2
4
6
8
10
12
14
16
18
20
gas average 2003-08 mean temperature average 2003-08
Energy Consumption
10%
33%
36%
1%
12%
8%
Lighting
Kitchen
Washing
ThermalcomfortTV
other
Electricity consumption by different source
(average of 16 German households)
average
consumption per
week:
68,1 kWh
Energy Consumption
0
10
20
30
40
50
60
70
before after
Ele
ctr
icit
y in
kW
h p
er
we
ek
other
TV;PC
Washing
Kitchen
Lighting
Theoretical case study for one houshold
Energy consumption
Longterm monitoring of gas consumption:
Daily gas consumption vs. air temperature (family 1)
0
2
4
6
8
10
12
14
16
18
-6 0 6 12 18 24
Temperatur in °C
Gas c
on
su
mp
tio
n i
n m
³
Energy consumption
Longterm monitoring of electricity consumption:
Elektricity consumption per day (family 2)
0
5
10
15
20
25
30
35
01.09.2008 01.12.2008 02.03.2009 01.06.2009 31.08.2009 30.11.2009
Ele
ctr
icit
y in
kW
h
Energy consumption
Daily electricity consumption before and after implementation of energy
saving measures family 1Daily electricity consumption vs. air temperature
0
5
10
15
20
25
30
35
-6 0 6 12 18 24
Temperature in °C
Ele
ctr
icit
y i
n k
Wh
Before
After
Before:
132 kWh
per week
After:
93 kWh
per week
Energy consumption
Daily electricity consumption before and after implementation of energy
saving measures family 2
Before:
63 kWh
per week
After:
56 kWh
per week
Daily electricity consumption vs. air temperatur
0
2
4
6
8
10
12
14
16
18
20
-6 0 6 12 18 24
Temperature in °C
ele
ctr
icit
y in
kW
h
Before
After
Energy Mix
3%1%4%
6%
4%
13%
2%
20%
24%
23%
nuclear
brown coal
black coal
oil
natural gas
waterpower
wind energy
biomass
solar
other
Electricity production in Germany: Energy Mix
(reference: Fischer Weltalmanach 2010)
Energy Mix
61%
15%24%
45%
22%
33%
nuclear
fossile
renewable
(reference: www.eon-avacon-vertrieb.com)
Germany (mean) and energy supplier Sulingen (EON-Avacon)
CO2 emission Germany (mean): 541 g/kWh
Sulingen (region): 386 g/kWh
Energy Mix
gross inland energy consumption in 2007 in MWh
per person
0
10
20
30
40
50
Germany Hungary Poland Turkey Malta
Renewable
Nuclear
Natural Gas
Crude oil
Coal
Source: Eurostat
Energy Mix
gross inland energy consumption in 2007
0%
20%
40%
60%
80%
100%
Germany Hungary Poland Turkey Malta
Renewable
Nuclear
Natural Gas
Crude oil
Coal
Source: Eurostat
Energy Mix
Greenhouse gas emissions
per person in tons
0
2
4
6
8
10
12
14
Germany Hungary Malta Poland Turkey
1997
2002
2007
Source: Eurostat
Saving Energy
Energy Saving Tips:
- Unplug: Even when a charger is not connected to the appliance, it still
consumes electricity.
- Switch off: Do not leave appliances on standby. Use the „on - off“
function.
- Only boil as much water as you need: Avoid boiling water
unnecessarily.
- Use energy-saving-bulbs: Energy-saving bulbs can reduce your
lighting costs and avoid CO2 emissions.
- New devices: More energy efficiency at home reduces energy
consumption.
- Don´t use the dryer: Put the clothes on the clothesline.
Saving Energy
PC and Monitor:
stand-by power per day: 10 W · 21 h = 210 Wh
energy saving per year: 76 kWh
reduce CO2 emission per year: 41 kg
all students in our school: approx. 40 tons
Energy-saving bulb 11 W/ light bulb 60 W
power difference per day: 49 W · 4 h = 196 Wh
energy saving per year: 71 kWh
reduce CO2 emission per year: 38 kg
approx. 200 km by car (8 ltr. / 100 km)
���� 40 kg CO2
Save energy and reduce CO2 emission:
Saving Energy
Condenser Tumble-Dryer:
efficiency C rated: 4,48 kWh / cycle
4 washes per week: 18 kWh
energy per year: 936 kWh
2 washes per week: 9 kWh
energy saving per year: 468 kWh
and in addition
efficiency A rated: 1,9 kWh / cycle
2 washes per week: ~ 4 kWh
energy saving per year: 728 kWh
reduce CO2 emission per year: 390 kg
Save energy and reduce CO2 emission:
Carbon Footprint
Carbon Footprint: tons of CO2
6,81
8,89
10,859,8
0
2
4
6
8
10
12
students
10 - 16
students
17 - 19
Adults Germany
mean
CO2 emissions at Gymnasium Sulingen
Carbon Footprint
students; age 17 - 19 (average: 25 persons)
31,7%
10,4%
7,2%2,6%
48,0%
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