2 EXAMPLES FOR COST AND
COMPLEXITY DRIVERS
Using a dedicated communication infrastructure
means all costs have to be covered by the applica-
tions having access to and using this infrastructure. In
the extreme case of smart metering, only an annual
reading is necessary to bill a classic residential tariff.
In this case, the meter reading infrastructure has to
transmit no more than a few bytes of useful payload
every year. When we assume that the operational cost
for a smart metering infrastructure is up to 50 Euro
a year compared to a classic Ferraris meter with an-
nual reading, and that the meter reading can be coded
in a 50 byte data unit, we get communication costs
of 1 Euro per byte. When 15 minute readings are re-
quired and transmitted we transmit 35 kByte per Euro
communication cost, or 29.26 Euro per MByte of pay-
load. This is a considerable price, even compared with
the most expensive volume-based mobile data tariffs.
When other applications want to use this communi-
cation infrastructure, its owner will tend to charge a
prohibitively high cost, so that many applications will
become economically unfeasible over this infrastruc-
ture. Thus, third parties very probably will use another
available communication infrastructure.
As mentioned before, the variety of communica-
tion protocols in dedicated metering infrastructures
increase cost and complexity. This is illustrated by the
requirement of a separate display (In-Home Display)
for smart meters in some countries. A separate dis-
play makes sense when the customer has no access to
the meter itself, e. g. when the meters for several apart-
ments are located in the basement of an apartment com-
plex or when the meters are mounted on a nearby pole
to inhibit tampering. Smart meters often have built-in
wireless MBus or PLC modems, but a greater choice
of In-Home Displays exists with Zigbee modems. If
the utility does not want to buy all components from
a single source, it is often penalized by the need for
gateways with protocol conversion. In addition, data
content, presentation and data security from time to
time necessitate software and configuration updates.
Therefore, a secure software distribution and activa-
tion platform has to be developed or extended for each
new integration component like an In-Home Display.
To develop and maintain such a platform is costly and
incurs permanent operating expenses. Furthermore,
professional displays generally offer limited function-
ality at a higher price than consumer goods. When we
look at the In-Home Display problem a second time,
the question is whether we need an In-Home Display
at all. Any old smartphone has more functionality and –
most importantly – comes with a well-established soft-
ware distribution platform. Better still, a smartphone is
available at almost all customers, who have no interest
in yet another display hardware (Gosden, 2015). The
requirement to use this superior and customer-friendly
solution is support of WiFi, the most widespread com-
munication solution. By doing that, solutions from
other industries are immediately available to the utility
industry, yielding immediate cost and customer satis-
faction benefits. The consideration for regulation is
not to specify technical detail, which is often based
on a specific solution approach and risks to mandate
inferior solutions after new approaches have become
available (see (UK Department of Energy & Climate
Change, 2016) for an example of the lengthy and cum-
bersome process to scale back on technical detail in
regulation).
3 REGULATION AND
ECONOMIC DEVELOPMENTS
Utility services belong to basic needs and competition
on the physical access is rarely feasible for the supply
of energy, water, gas or long-distance heating. There-
fore utility services including metering, transmission
and remuneration of meter readings are highly regu-
lated. Also regulated is the unbundling of generation,
transmission, distribution and sale of electric energy.
In Germany, the operation of metering points is de-
fined as an additional role; due to the security solution
specific to Germany (BSI-Gateway, smart metering
system) the meter point operator has additional regu-
lated tasks (Smart Metering Gateway Administration).
The combination of role unbundling and regulation of
network charges results in side-effects, which render
offering new services via traditional market roles un-
profitable. For example, sales is burdened with higher
network charges when energy consumption of private
households deviates from standard load profiles.
Offering further energy services is usually unreg-
ulated business, at least if they are organizationally
separated from the regulated market roles, based on
a separate contract (opt-in), and obtain the required
meter readings (where necessary) with consent of the
customer using other ways than the official smart me-
ter gateway. Economically, the energy provider market
is developing towards more complex contractual re-
lationships: Distributed energy generation provides
manifold possibilities for optimizing the local or re-
gional utilization of renewable energy sources by per-
sonal and regional use. This helps to reduce necessary
investment in transmission, and to share the resulting
savings. Presently, only one sales contract per end-
customer is foreseen. With self-consumption and the
Towards Cost-Effective Utility Business Models
233