Nachhaltigkeitsbericht 2009 - ista.com

The carbon footprint for consumption-dependent heating cost billing,
based on the doprimo 3 radio net
This report is based on environmental analysis data from PE INTERNATIONAL, the leading global
sustainability software and consulting company.
Consumption-dependent
heating cost billing based
on the doprimo 3 radio net
saves 158 times as much
CO 2 as is produced over
the entire life cycle.
CalCulation assumptions:
The alternative which causes the highest
CO emissions or is used the most frequently
2
was always considered.
■ Life cycle is 10 years
■ Average property =
9 apartments with 5 devices
■ Installation by welded assembly
■ Air transport
■ Disposal: 100% product return rate
The company:
Consumption-dependent heating cost billing based on the doprimo 3 radio
net saves 158 times as much CO 2 as is produced over the entire life cycle.
The product and service:
The doprimo 3 radio net is an electronic heat cost allocator, which
records heat consumption as soon as there is a temperature difference of
at least 4.5 Kelvin between the radiator and the room air. Depending on
the operating mode, this temperature difference is the criterion used to
measure heat consumption. The individual heating bill is prepared on
the basis of this data.
The balance:
In order to determine the carbon footprint of the doprimo 3 radio net,
the CO 2 impact is considered over the entire life cycle. The device has an
average life of 10 years. This includes raw material procurement, manufacture,
transport, assembly, installation, use including the consumptiondependent
heating cost billing as well as disposal or recycling.
The motivation:
In order to stop climate change, the international community has
agreed to cut global CO 2 emissions by 20% by 2020 or by 80 - 90% by
2050. Against this background, in recent years politicians and climate
researchers have increasingly shifted their focus onto residential properties.
After all, in the industrialised world, almost 40% of the energy consumption
is caused by buildings.
Each year, ista prepares around 50 million heating cost bills. The company
has been contributing to cutting energy consumption in buildings by
approx. 15% for over 50 years.
The objective:
The objective of the study is to determine the CO 2 emissions produced
during the entire doprimo 3 radio net life cycle. The calculated emissions
are compared to the CO 2 savings by individual heating cost billing.
ista International GmbH
1

4.04
0.24
-0.58
dOprimO 3 radiO neT CO 2 emissiOns in kg
■ Production ■ Installation ■ Use
■ Dismounting ■ Disposal
summary:
In Germany alone, ista saves a good
1.5 million tonnes of CO 2 emissions a
year through the individual billing of
heating costs. This is based on more than
18 million heat cost allocators, which
ista has installed in more than 400,000
properties in Germany. Therefore, through
consumption-dependent heating cost
billing, each individual device produces
an average CO 2 saving of 84 kg per year.
This is offset by the CO 2 emissions
caused by the doprimo 3 radio net
during its entire life cycle.
Consumption-dependent heating cost
billing based on the data of the doprimo
3 radio net, over the entire life cycle,
therefore saves 158 times as much CO 2
as is produced.
The 0.53 kg of CO emissions
2
caused by the doprimo 3
radio net per year correspond to
the production cost of approx.
100 sheets of virgin fibre paper.
1.80
0.01
* The disposal phase takes into account specific recycling processes, assuming a 100% product
return rate and maximum reuse of the recyclable components.
5 life cycle
phases
CO 2
emissions
Causes of CO emissions /
2
credit
produCtion 4.04 kg raw material procurement, manufacture,
transport, preparation
More than half the CO emissions are
2
produced during manufacture of the
printed circuit board and the battery.
installation 0.24 kg Transport, assembly, storage
90% of the CO emissions are produced
2
by the car journey to the property.
The remaining 10% are caused, among
other things, by the welded assembly
and transport.
use / reading 1.56 kg diesel consumption, electricity consumption
The CO emissions are produced by transport
2
distances and car journeys to the property
in which the heat cost allocator is read
once a year as well as by the electricity
consumption of the reading device.
use /
0.13 kg energy consumption of the service centre
serviCeCentre
The CO emissions are incurred due to
2
use / billing 0.11 kg
the electricity, water and heating energy
consumption of the ServiceCentre, in
which the ista employees prepare the bills.
Transport, dispatch, paper
The emissions are incurred because of
the paper and printing of the bills,
as well as by the fuel consumption
along the transport routes.
dismounting 0.01 kg Transport, storage
The emissions are produced by travel to
the property or to the logistics centre.
disposal*
0.16 kg Logistics, transport, disposal, recycling
(Co emissions)
2 The CO emissions are incurred because
2
disposal*
(Co Credit)
2
of the transport routes and the disposal
of individual components.
- 0.73 kg The credit results from recycling
CO emissions are credited here by
2
reusing individual components, for
example the aluminium, or by further
processing the precious metals.
The 84 kg of CO emissions
2
saved each year by
consumption-dependent billing
based on the doprimo 3 radio
net correspond to the production
cost of approx. 15,800 sheets
of virgin fibre paper.
ista International GmbH
2