1. science
2. ecology
3. waste management
4. recycling

International Journal of Waste
Resources
Wilts and Palzkill, Int J Waste Resources 2015,
4:1 http://
dx.doi.org/10.4303/2252-5211.1000174
Research Article
Open Access
Towards the Circular Economy: Waste Contracting
Henning Wilts* and Alexandra Palzkill
Wuppertal Institute for Climate, Environment and Energy, Germany
*Corresponding author: Henning Wilts, Wuppertal Institute for Climate, Environment and Energy, Germany, Tel: +49-202-2492-290; Fax: +49-202-2492-138; E-mail:
henning.wilts@wupperinst.org
Received date: January 16, 2015, Accepted date: March 13, 2015, Published date: March 18, 2015
Copyright: © 2015 Wilts H, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted
use, distribution, and reproduction in any medium, provided the original author and source are credited.
Abstract
The transition towards a circular economy is high on the political agenda and support for innovative business
models can be seen as one of the key strategies for its implementation. Nevertheless most of these business
models rely on an increasing generation of waste and thus undermine the prevention of waste as top of the waste
hierarchy. The paper aims to link this debate to more systemic eco-innovations that offer economic market potentials
by reduced material inputs and waste generation. This directs the attention to sufficiency strategies that surpass the
level of individual consumer choices and regards the potentials of entrepreneurial sufficiency strategies. It takes the
example of waste contracting modelsin Germany as a possible approach of resource-light business models that
provide existing utility aspects with altered consumption patterns and decreased resource consumption. It describes
environmental and economic benefits and draws conclusions on necessary policy framework conditions.
Keywords: Circular economy; Waste prevention; Contracting;
Innovative business models
Introduction
Strategies for the decoupling of consumption patterns, waste
generation and related environmental burdens predominantly focus
on technical efficiency and consistency. The overall aim is to reduce
the use of resources with the help of technological progress and closed
material cycles. Besides, so-called sufficiency strategies are described in
the literature, which not only aim at a relative decrease of resource
consumption, but by means of strategies of “less, slower” or “more
regional” also aspire to achieve an absolute reduction in resource use
and consequently waste generation. However, sufficiency strategies, if
even discussed, mostly consider individual consumer choices [1-4].
Especially in the face of the further increasing global resource
consumption [5], this is an astonishing fact and directs the attention to
sufficiency strategies that surpass the level of individual consumer
choices and regards the potentials of entrepreneurial sufficiency
strategies.
A common argument for the inadequacy of simple, usually
technically dominated strategies is the so-called ‘rebound effect’ [6-8],
which implies that successfully improved efficiency can lead to
increased consumption, which again exhausts a part of the achieved
savings – in unfavourable cases even overcompensates them. In terms
of the rebound effect, very diverse causes can be found. Regarding
direct cost savings in households, magnitudes of 10-30% are specified,
while for indirect, macroeconomic effects only few, strongly varying
sources are available, which, however, identify rebound effects of up to
100% [9]. On the other hand, the complete and equivalent substitution
of all current goods and services in a “consistent” manner in terms of
an environmentally sound resource use (e.g. through cradle to cradle
approaches) is not foreseeable at this point in time – especially not
under consideration of widely differing spatial and temporal problem
shifts [5]. Therefore, hoping for the necessary technological leaps
through market incentives is highly risky: “For all these reasons,
Int J Waste Resources
ISSN:2252-5211 IJWR, an open access journal
consistency is indispensable – but alone not sufficient for the actuation
of a sustainable development” [10-11].
Against this background this paper analyses innovative contracting
business models in the field of waste management based on waste fee
savings from waste prevention and improved waste separation in
Germany. It aims to give new insights regarding how the overall
concept of sufficiency could enrich discussions about a circular
economy, how contracting can create new business opportunities in
the waste sector and which policy instruments might increase the
market uptake of such promising innovations. The paper is structured
as follows: Chapter 2 describes the analytical framework and the
methodology of the analysis, chapter 3 introduces the empirical
foundation of the paper. Based on this theoretical and empirical basis,
the final chapter draws conclusions on key success factors, the
necessary political framework and further research.
Theoretical Background
Key terms and definitions
The term of sufficiency is defined in different ways in the literature.
The following takes on a definition of Fischer et al.: “The term
‚sufficiency’ refers to changes in consumption patterns which facilitate
operation within the ecological bearing capacity of the earth, whereby
utility aspects of consumption are changing”. Hence, it is clearly
distinguished from efficiency and consistency: “for these two strategies
assume that with a lower environmental consumption, benefits do not
change: Efficiency quantitatively reduces resource inputs or emission
outputs in proportion to the generation of the same benefits; while
consistency achieves the same through another technology which is
equally environmentally sound on a large scale. Sufficiency, however,
is accompanied by modifications of the benefit package” [9].
Assessment thereby in each case takes place based on individual
preferences: On the one hand, sufficiency is therefore often outlined as
“renunciation” or “lower welfare” [12]. On the other hand, terms like
the “succeeding life” or the “right measure” [10,13] suggest that
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Citation:
Wilts H, Palzkill A (2015) Towards the Circular Economy: Waste Contracting. Int J Waste Resources 4: 174. doi:
10.4303/2252-5211.1000174
Page 2 of 6
sufficiency could also bring forth an individual benefit – for example
“time prosperity” [13], “freedom from excess” [14] or “the good life”
[15]. This perception also addresses fundamental criticism brought for
e.g. by Huber [16] who points out the often strongly paternalistic
underlying assumptions of sufficiency policies.
For this paper we applied an analytical framework developed by
Sachs [17] that distinguishes four fundamental sufficiency strategies
(the so-called 4 D’s) that oftentimes correspond with modified
satisfaction of such benefit packages:
1.
2.
3.
4.
Decluttering (in terms of absolute reduction of the number and
diversity of consumed/acquired products),
Deceleration (in terms of a reduction of the frequency of
consumption),
Decommercialisation (in terms of the subsistence economy of
DIY and production instead of commodification) and
Deconcentration (in terms of a simplification and regionalization
of value chains).
Sufficiency as consequence of innovative business strategies
Despite its potential for resource conservation and the now
recognized necessity of subsistence strategies for the reduction of
global resource consumption, aside from individual consumer choices
only few scientific approaches deal with the question and promotion
of sufficiency strategies (on a political and/or entrepreneurial level)
(first approaches to sufficiency policy see: [9,15]; on entrepreneurial
sufficiency strategies [18-21]. Especially for business strategies targeted
on sufficiency, which provide existing utility aspects with altered
consumption patterns and decreased resource consumption, there is a
considerable conceptional and instrumental deficit [22]. A deepening
of implications specific to the company is therefore also hard to find,
due to missing alternative conceptional landmarks. According to
Paech, “new management concepts” [18] are in demand, which allow
for a substitution or modification of existing consumer demands and
develop new business models accordingly.
Along the abovementioned heuristics of the 4 D’s, business models
are indeed identifiable within which sufficiency becomes driver for a
business case, or which take on trends towards sufficient behaviour
[9,22] including the provision of services instead of resource intensive
goods (e.g. Carsharing); satisfaction of needs in the sense of “less is
more” (simplify your life) (decluttering) or the establishment of offers
that enable a longer use phase (e.g. cheap repair and replaceable
batteries in laptops) (deceleration).
The following case study will apply this analytical framework to a
specific case study – waste contracting in different German
metropolitan regions. For the research several expert interviews have
been conducted and public available as well as internal planning
documents have been analyzed.
Contracting
Contracting as contribution to resource efficiency
A possible approach of such resource-light business models that
provide existing utility aspects with altered consumption patterns and
decreased resource consumption are contracting models, which have
predominantly been developed in the energy sector up to now: They
belong to the few business models which turn a “less” into an
established business case. Performance contracting in the energy
Int J Waste Resources
ISSN:2252-5211 IJWR, an open access journal
sector is a contractually agreed service between the owners of
buildings and tenants on the one side and specialised energy service
enterprises, the contractors, on the other side. The contractors
optimize energy supply, mostly through a mixture of classical and
technological efficiency measures, but also energy use by means of
sufficiency measures and profits from saved energy costs over an
extended contract term.
The benefits of contracting can include, next to cost savings, the
involvement of external experts in the modernisation of
infrastructures, the avoidance of short-term high investment costs for
optimized infrastructures for the owner as well as the transfer of
investment risks to the contractor and the reduction of liability risks,
among others: “The actual advantage of contracting is, however, that
the technical expertise of the contractor can be used for planning,
construction and operation of structural and supply and control
technical measures and the risk and possibly the financing can be
transferred to him”. So far, contracting seems to be a classical
financing strategy of efficiency measures for energy conservation.
However, it can also be held as sufficiency strategy due to the fact that
on both sides, that of the owner of the building and that of the tenant,
the structures of need satisfaction change through energy supply and
consumption.
Case study waste contracting
Based on the experiences outlined above, further significant
resource efficiency potentials on the basis of contracting models can be
assumed, for these can offer efficiency strategies combined with
sufficiency strategies. For example, it might be considered to transfer
the principle of performance contracting from the energy sector to the
waste sector, as the Kiel enterprise Innotec that was founded in 1996
tries to realize. The innovation targets at a „financial incentive
model“ for improved waste separation by tenants and therefore
sustainable cost reductions in the operation of residential properties
[23]. It aims at key similarities of waste and energy: technical gridbased infrastructures with high shares of sunken investments, relevant
negative externalities and public regulation for consumption-based
fees: Thus the business model is based on two different pillars:
The area “conventional waste management” consists of an intensive
personal counselling of tenants regarding correct waste separation and
prevention of waste in different languages with campaigns specific to
target groups such as “There is space in the smallest kitchen”. The
focus of these activities, however, is on the visual inspection of residual
waste bins which is conducted by personnel of Innotec a few times per
week, the so-called property supervisors, and sorts out bulky and large
volume waste such as cardboard boxes or other large packaging in
order to achieve a reduction in residual waste amounts [23]. Even after
intensive counselling, this task has to be performed repeatedly and
regularly, as counselling alone does not lead to lasting changes in waste
separation behaviour. Innotec hereby emphasizes that from the point
of view of waste legislation this doesn’t involve the sorting of waste in
technical terms but simply a correction of filling mistakes. In doing so,
neither a withdrawal of recyclable materials – all waste liable to
collection for disposal are in fact left to local authority waste
management services – nor waste compaction takes place. Besides this,
the enterprise also grants a regular cleaning of the waste bin locations.
Moreover, Innotec offers technical systems for a “consumer-related
waste management” as an extension of its offer, which enable an
individual registration and accounting of residual waste amounts by
means of “waste identification” systems. Waste locks are hereto
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Citation:
Wilts H, Palzkill A (2015) Towards the Circular Economy: Waste Contracting. Int J Waste Resources 4: 174. doi:
10.4303/2252-5211.1000174
Page 3 of 6
installed in residual areas which outwardly hardly differ from normal
standard washed concrete boxes but where waste can only be disposed
with a transponder chip, while being weighed at the same time
Alternatively, waste containers are installed which can be filled with
either 5l or 20l waste sacks and only individually register the number
of fillings. The individual attribution achieves that residents only have
to pay for their individual amount of residual waste and therefore have
a real incentive to save money on fees by optimized sorting and wasteconscious consumption.
Even if the approach of individual transponder chips is based on a
technical innovation, it particularly bets on a behavioural change of
tenants and therefore combines efficient technology with altered
consumption patterns for the satisfaction of needs. Though the focal
point of Innotec’s services is the correction of filling mistakes directly
at the waste location, an essential component of the concept is,
according to Innotec, also the information of tenants and the
development of a fundamental awareness of costs and saving potentials
in the area of waste [24]. This necessary knowledge transfer has to be
adapted to the gradual alteration of collection infrastructure very
carefully; among other things, tenants regularly have to be informed
about purpose and success of individual measures (more “yellow bins”,
introduction of an organic waste bin, introduction of waste locks,
restriction of filling volumes etc.) [24]. The involvement of tenants in
the concept is of central significance, also in order to prevent economic
incentives that lead to waste being disposed in the environment in
order to save costs. Investigations of the Witzenhausen institute after
the introduction of waste locks showed however, that through intensive
counselling no increase in wild waste deposits was noticed and the
cleanliness at waste locations even increased considerably. The institute
states that “after the introduction of the locks, no increase in
environmental pollution and no wild waste deposits or illegal disposal
of waste occurred in the investigated area and its surroundings” [25].
Meanwhile the enterprise supervises about 250 housing companies
with 630,000 housing units and 1.5 Million tenants throughout
Germany [26]. Innotec concentrates its activities as far as possible on
social or publicly promoted residential construction, where tenants
often have no distinct awareness for waste separation or prevention
due to language barriers, education level or social environments. In
high-grade apartments, however, the situation is often met that
inhabitants are quite willing to spend 300 Euros or more per year on
waste fees if it grants them sufficiently high volumes of residual waste
at any time and the level of incidental costs does not form the relevant
criterion in the decision to rent [27].
Contribution to sustainable resource management and
reduction of resource consumption
Scientifically accompanied evaluations of Innotec projects in
Hamburg and Erfurt revealed that the introduction of a consumeroriented accounting of fees especially increased the amount of
separately collected materials and therefore more materials could be
directed to material recycling. This leads to a decrease in waste-related
CO2 burdens of up to 60 % [28].
In this way, the amount of collected packaging from the dual system
in e.g. Erfurt could be increased by 60%, while separately collected
organic waste even increased by 400%. Residual waste generation
specific to inhabitants could hereby be reduced from 3.85 kg per week
to 0.8 kg per week (Figure 1) [29].
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Figure 1: Changes in waste streams through the introduction of
waste locks [29].
Taking a broader view on all recycling paths such as e.g. recycling
depots, a residual amount of 800g per inhabitant and weak results,
which can either be effectively prevented or shifted, e.g. to waste
disposal at work. The accompanying scientific study comes to the
following conclusion: “The introduction of waste locks encouraged the
affiliated inhabitants to realize the fundamental waste economic ideas
of prevention and recycling in their disposal behaviour” [29].
Triggers and required framework conditions of waste
contracting
Starting point and occasion for the introduction of a sufficiency
strategy in the waste sector were particularly the dramatically
increased waste fees in the 1990s that turned waste fees into an
effectively relevant cost block of residential incidental costs. The
monthly cost of waste disposal and street cleaning in Germany amount
to approximately 0.17 Euros per square meter on average – thus
highlighting the importance of framework conditions like landfill bans
and specific technical treatment obligations in Germany, inter alia
aiming at economic incentives for high quality waste recycling or
waste prevention. Another important driver for innovation is the
intensified competition on the housing market. In the face of the
demographic development in Germany, homeowners and especially
big housing associations can no longer expect to find tenants for their
housing spaces at arbitrary prices. Therefore property owners try to
secure the competitiveness of their renting objects by means of
efficient facility management that aims at low incidental costs
regarding, among others waste.
Sorting analyses have revealed that particularly in the area of social
housing waste disposal is “especially inefficient” because of the widely
anonymous collection in large bins, meaning that on the one hand
waste is not correctly separated and on the other hand significant
amounts of light packaging can still be found in residual waste subject
to charges. Added to this is the specific situation that rent in these
places is often entirely paid by the social security office, so that the
level of waste fees offers no economic incentive to inhabitants. This
also signifies that waste volumes, which usually represent a benchmark
of cost calculation, are not considered sufficiently. A classical example
for this isfor example the disposal of high-volume cardboard boxes or
bulky waste through residual waste bins. „Anonymity effects and
convenience“ [27] lead to classical cost externalisations, caused by the
individual conviction of every inhabitant that for example his disposal
Volume 4 • Issue 1 • 1000174
Citation:
Wilts H, Palzkill A (2015) Towards the Circular Economy: Waste Contracting. Int J Waste Resources 4: 174. doi:
10.4303/2252-5211.1000174
Page 4 of 6
of bulky waste through the residual waste bin saves him the trip to the
recycling depot or the commissioning of the large refuse disposal unit
(which is often even free of charge) and therefore reduces his costs.
Especially the large 1,100l containers common in residential
construction even enable e.g. the disposal of whole cupboards etc.
through the residual waste bin. In these housing complexes it could be
empirically observed that every offered waste volume has been used in
the end; the amount of generated waste followed the available volume
(up to a specific maximum limits of approximately 180l per person
and week - however, the differences would be clearly lower if real
weight would be registered instead of volume). These different effects
lead to the fact that residual waste amounts and corresponding charges
in social housing were significantly higher, on average about 3-4 times,
than the comparative figures for e.g. one-family-houses, which dispose
about 30l of waste per week and person on average, whereby in this
case the correlation between the level of charges and residual waste
generation is clearly recognizable. In the face of these tremendous cost
savings potentials, Innotec was able to grow very fast especially in
congested areas with large numbers of social housing complexes.
Business case and involved actors
Waste Contracting has its business case through the cost savings
with regard to residual waste disposal. For landlords the total costs of
waste disposal in past projects, depending on waste economic
framework conditions, decreased by 20-50%, in individual cases by up
to 70%, due to subsequent sorting [26] – hence properties can be
offered at competitive conditions on the market. Innotec is exclusively
funded by a profit sharing of these saved costs. Usually a pilot phase of
five years is arranged in projects, during which Innotec obtains 75% of
the saved residual waste fees in order to refinance installation
engineering and the initially personnel-intensive counselling of
tenants. After this pilot phase, Innotec still receives 50% of the savings
in case the project is continued. A conducive factor has proven to be
the fact that the owner’s expenditures for waste management services
can be applied to the income tax as household-related services.
Advantages result also for tenants, as the emerging costs of the
residential area are no longer calculated on a flat-rate basis per head or
square meter, but according to the individual waste behaviour.
According to surveys of the German Tenant’s Association, 65% of all
tenants wish for a more consumer-related calculations of running costs
[28]. Moreover, the optimized separated collection and the correction
of filling mistakes altogether leads to a clear reduction in residual waste
fees. Innotec argues that cities also benefit from optimized waste
management: On average, 20% of the inhabitants of large residential
complexes are welfare recipients, whose decreased rental charges lead
to lower rental subsidies. Taking Duisburg as an example, savings in
rental charges of 1.7 Million Euros would lead to municipal savings of
180,000 Euro [30].
Conclusions
The case study and the triggered political discussions show that on
the one hand, sufficiency strategies are no longer a simply private
question of individual consumer choices. Private consumer choices,
sufficient or not sufficient, are always dependent on several impact
factors and enabled or restricted by economic, political and
infrastructural framework conditions. Due to existing incentives and
offers it can be assumed that the increased implementation of more
sufficient lifestyles can hardly be simply promoted by the demand side
of the market. Due to the fact that the sole addressing of the consumer
Int J Waste Resources
ISSN:2252-5211 IJWR, an open access journal
in order to implement more sufficient lifestyles constitutes an
excessive demand [31], sufficient business strategies and offers are
needed, just as directional political framework conditions promoting
sufficiency.
On the other hand, initiatives like Innotec, which target at the
prevention of waste as a component of their business model, show that
sufficiency strategies as business cases can be successfully
implementable. Innotec has by no means been initiated out of the
normative idea of a low-waste economy, but because a lucrative
business field was expected. Even the selection of projects doesn’t
occur from a perspective of maximum contribution to resource
efficiency, but from the angle of maximum return. Nevertheless, the
business model clearly contributes to more sufficient lifestyles which
by now significantly influence the business interests of established
waste management actors that have invested in waste management
infrastructures – partly financed by fee payments.
Despite of relevant resource efficiency potentials, demands for
national sufficiency politics have moral concerns, as they would
intervene in fundamental rights and freedom of the individual in a
particular manner and quality based on the (alleged) claim of
renunciation. This, however, relates the concept of freedom solely to
the freedom of the consumer and therefore strongly curtails it. In
contrast, politics as facilitator of “positive freedom” (Thomas Green
Hill) creates liberties for the development of individual ways of life
without restricting the freedom of others [15].
In this way, every form of political framework setting (even the
omission of such) always constitutes an influence on the possibilities
and liberties of the individual. Therefore the reference to a restriction
of the market doesn’t release politics from the liability of creating
suitable framework conditions that contribute to waste prevention and
other sufficient lifestyles: “As little as politics alone can create
sufficient lifestyles, as hard it is without them, according to our
conviction” [9]. The German Advisory Council on Global Change
(WBGU) justly refers to the necessity of a “shaping state with extended
participation”, that initiates “search processes” and directs them by
means of frameworks and agenda setting [32].
Instruments for the promotion of sufficient contracting
models
The basic approach of contracting raises the question to what extent
the application of public resource political instruments is necessary at
all: “Contracting as operation and financing model generally doesn’t
require separate promotion: In order to stay successful in the long run,
contracting has to be economic per se” [33]. Especially with the herein
chosen focus on the promotion of sufficient lifestyles, different starting
points result for the promotion of contracting models and the
overcoming of information deficits, high transaction costs due to
lacking experience as well as path dependencies and bureaucratic
procedures.
In Baden Wuerttemberg, the issues most relevant for the
representatives of suppliers, consumers and financial management
have been discussed and central recommendations were expressed in
the framework of a contracting offensive. The focus was on
contracting models in the area of energy; however, these approaches
are also widely transferable to the area of resource efficiency:
Communications-initiative contracting: Especially in the area of
resource efficiency, contracting possibilities are not yet sufficiently
Volume 4 • Issue 1 • 1000174
Citation:
Wilts H, Palzkill A (2015) Towards the Circular Economy: Waste Contracting. Int J Waste Resources 4: 174. doi:
10.4303/2252-5211.1000174
Page 5 of 6
known. This was addressed by a communications initiative that aimed
to predominantly target at political decision-makers, to whom the
potentials of such models are often not very familiar. As a further
circle of addressees, the supporting partners for enterprises in the area
of finances, especially accountants, tax consultants and banks, were
addressed as the parties trusted by decision-makers in enterprises that
could take on an important role as “contracting multipliers”. For the
topic of resource contracting, a lack of project developers and
consultants exists which could support and counsel contracting
customers as experienced, competent and neutral partners. The aim
should be the qualification of engineers, planners, architects and actors
of existing resource efficiency counselling institutions as project
developers. A comparable lack exists on the supply side.
Extending financing options for contracting: If a contractor can
offer financing to the client at the same time, his market position
improves. Adapted financing models are particularly missing for small
projects in conjunction with new and smaller contractors. Therefore
the framework of the Baden-Wuerttemberg project recommended the
development, testing and distribution of new financing models
together with principal banks and the federation of cooperatives which
are not directly oriented towards the credit standing of the contractor
or its counterpart (e.g. project-based financing). Furthermore,
successful contracting models require hedging instruments such as
contingency insurance or indemnity bonds in order to minimise the
risk for both the contracting client and the contractor.
means that a measure is so convincing that it is suitable to find
imitators. The ‘potential for structural change’ describes a measure
who changes the individual situation or the social practice in a way
that the achieved environmental disburdening is most likely
permanent [36]. Against this background, they recommend the use of
cars, electricity saving, dietary shifts to Mediterranean food and living
space reductions as interesting fields of action for sufficiency – though
not all cases reveal how business models could be built upon these
topics. Especially the topic of preventing food waste would be an
important field of action for structural change due to its emotional
charge and high radiating effect as well as its economic and ecological
potentials.
Further Research Questions
The example of waste contracting shows that sufficiency can
successfully function as business case and opens up business
opportunities. However, existing concepts for sufficiency business
strategies in business administration are only at the beginning stage:
For an extended understanding of sufficiency-promoting business
models, considerably extended knowledge about existing and
prospectively possible sufficiency-based business models is required:
•
Possibilities of transmission
With a view on the transmission of the contracting approach to the
topic of waste prevention, the question arises for which further
application fields contracting is feasible, or on which areas the support
of sufficiency business models should focus. Figure 2 shows the
distribution of the total resource consumption in Europe to different
consumption areas. Against this background, an example would be to
focus on the prevention of food waste, as significant economic and
ecologic potentials could be generated here – food waste represents a
significant share of residual waste, shows large prevention
opportunities and at the same time massive resource conservation
potentials [34,35].
•
•
References
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2.
3.
4.
5.
6.
Figure 2: Absolute Resource Consumption (TMR) by Consumption
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of topics for sufficiency and contracting strategies. ‘Radiating effect’
Int J Waste Resources
ISSN:2252-5211 IJWR, an open access journal
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