Energie- und Umwelt- management in griechischen Hotels

Energie- und Umwelt- management in griechischen Hotels

Energie- und Umweltmanagement in griechischen Hotels
Environmental, climate friendly hotels
Dr.-Ing. Sven Eckardt
Dr. Sven Eckardt
Doctor of Engineering Science (energy and environment)
since 2005
Lecture on energy and environmental management at
University and Cooperative Education Stuttgart
since 2005
Consultant for energy and environment for DEHOGA
(German hotel association), Berlin
since 2007
independent freelancer and consultant for hotels
since 2008
senior auditor and senior consultant for FICHTNER
since 2010
senior consultant for blueContec and TUI
Country experiences: Germany, Austria, Swiss, France
Italy, Greece, Cyprus, Spain, Turkey, Tunesia, Brazil, Egypt, Bahamas
GERMANY
200 hotel audits
(Seesteg Relais & Châteaux
Best Western Premier Ambassador …)
CANARY ISLANDS
5 hotel audits
(Jardín Tropical, Gran Melia, RIU Garoé )
TURKEY
25 hotel audits
(Iberotel Palm Garden,
Amara Wing, Gloria Golf ...)
BAHAMAS ISLANDS
18 hotel audits &
10 public buildings
(British Colonial Hilton, Atlantis …)
GREECE
5 hotel audits
(Blue Palace,
Grecotel Marine Palace …)
DOMINICAN REPUBLIC
(Paradisus Punta Cana)
EGYPT
BRAZIL
13 hotel audits
(Steigenberger El Gouna…)
5 hotel audits
(Tropical Tambau…)
Tunesia
2 hotel audits
(Holiday Village, Manir.…)
Indicator: CO2
Calculation and conversions
CO2 – in hotels - calculations
Basic calculation and conversions:
Electricity
Gas
Fuel
Wood
Woodpellets
information from electricity company
220 – 255 g/kWh
320 – 329 g/kWh
21-24 g/kWh
29-31 g/kWh
CO2 emissions for a 7 days holiday / 4 ****hotel with spa
Standard-Hotel:
140 kg CO2
Quelle: IER
Electricity consumption and CO2
Green Electricity and own PV System:
(13% PV + 87%Green Electricity) * 80.000 kWh =
(0,13 * 135 g/kWh + 0,87 * 47,62 g/kWh) * 80.000 kWh = 4,7 t CO2
or
Comparison with Electricity Mix Germany
560 g/kWh * 80.000 kWh = 44,8 t CO2
Heating / warm water system and CO2
273.000 kWh Fuel * 300 g/kWh = 81,9 t CO2
or
173.000 kWh (64%) Woodchips * 30 g/kWh = 5,2 t CO2
100.000 kWh (36%) Gas * 250 g/kWh = 25,0 t CO2
CO2 per Person in Germany
Baden-Württemberg:
Germany:
7,4 t CO2 per anno
10,1 t CO2 per anno
Quelle: Dr. Helmut Büringer, statistisches Monatsheft Baden-Württemberg 5/2004
Kilometer and CO2
VW Lupo (3 Litre Diesel)
with 86 g CO2 / km
45.000 km per anno = 3,9 t CO2
Mercedes (8 Litre Super)
with 192 g CO2 / km
12.000 km per anno = 2,3 t CO2
In Hotels : every hotel is different, CO2 per overnight stays, places
restaurant, air conditioned or heated area, swimming pools and spa,
shopping area, etc.
Good examples
and information
Best Western Premier
Hotel Victoria, Freiburg
www.victoria.bestwestern.de
Seehotel Wiesler, Titisee
http://www.seehotel-wiesler.de/
Feldbergerhof, Feldberg
http://www.feldbergerhof.de
Die Halde, Schauinsland
www.halde.com
Benchmarks: Energy Hotels
Benchmark Energy Hotel without restaurant
Step 1: reduce
energy consumption
Savings
20 cm insulation roof
10 %
new windows or modified windows
10 %
12 cm insulation walls outside
30 %
6 cm insulation cellar
new a/c system
5%
10 - 20 %
heat recovery from coolers and deep freezer
contribute to warm water supply
23:27
22:37
21:47
20:57
20:07
19:17
18:27
17:37
16:47
15:57
15:07
14:17
13:27
12:37
11:47
10:57
10:07
9:17
8:27
7:37
6:47
5:57
5:07
4:17
3:27
2:37
1:47
0:57
0:07
kW
Identify your peak electricity loads and manage them
180
160
140
120
100
80
60
40
20
0
Freitag,
15.03.02
Fr
Samstag,
16.03.02
50
45
40
35
30
25
20
15
10
5
0
Sa
Sonntag,
17.03.02
So
Montag,
18.03.02
Dienstag,
19.3.02
Mo
Di
Mittwoch,
20.3.02
Mi
Donnerstag,
21.3.02
kW
Optimal peak load management
Do
Minimize your
electricty peak
with a sensible
management of
electricity intensive
processes or
automatically
with a
maximum demand
monitor
Step 2: Find your
own energy concept
Solar collectors produce warm water for showers and
swimming pool
Integrated Collectors and Storage (ICS)
Integrated Collector and Storage (ICS) = ‘Batch heaters’
- tank (about 100 to 250 litres) acts as both storage and solar collector
-  easily plumbed in series between cold water supply and
the conventional water heater
-  passive system: easiest design, robust and easy to maintain,
no electricity required
-  low investment (about 1500 € for 4 persons household)
-  heavy load on the roof
-  looses much heat at low ambient temperatures (i.e. during night)
tank type ICS
tube type ICS
Thermosiphons
- the most popular SWH system worldwide
-  storage tank (up to 300 litres) above collector:
-  easy to maintain,
-  no electricity
-  low investment
- heavy load on the roof
-  better heat tank isolation than batch heater
-  no protection against freeze
-  mainly with flat plate collectors
In a closed-loop thermosiphon (‘jacketed SWH’)
a freeze protection liquid (glycol) can be used,
however to the expense of lower performance
due to higher fluid viscosity and losses in the
heat exchanger
open loop thermosiphon
closed loop
thermosiphon
Active Systems
-  more efficient than passive systems for hot water demand of about 300 to 500
litres per day and above
-  if water is hot in the collector, a controller turns a pump on
-  storage tank usually in-house
-  applicable not only for hot water supply but also for supporting space heating
-  goes with flat plate collectors as well as with vacuum tube collectors, the latter
being particularly suitable for generating higher temperatures (above 80 to 95
Celsius)
Flat plate collector
Direct flow evacuated tube:
two tubes with vacuum in-between
Heat pipe: uses a liquid easily
evaporating in vacuum
Pool heating
-  Pool heat demand mostly coincides with
sunshine
-  Solar pool heaters have to yield only
gradual temperature increase
-  Thus, simple and far less expensive
polymer collector without any heat
insulation are viable that have to cope only
with pool water quality
-  probably the most profitable solar water
heating application
Use photovoltaic panels to produce your own electricity
Evolution of tariffs 2010
70
remuneration €cent/kWh
60
50
generic
BIPV<30 kW
BIPV 30 -100 kW
BIPV >100 kW
BIPV >1000 kW
open field
BIPV self consumption
40
30
20
10
0
2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018
Step 3
Continuous
Improvement
Step 4 :
Promoting and
Marketing
Eco Labels and management sytems
We have no time ...
‫ﻣﻊ اﻟﺴﻼﻣﺔ‬
ً‫ﺷﻜﺮا‬
Dr. Sven Eckardt
Tel.
0049 7034 27 93 25
eckardt@eckardtconsulting.de
www.eckardtconsulting.de