IEEE Technology and Society Magazine - Spring 2014 - 47
Proposal 2: Prosumer Recruitment to Prosumer Community Groups
Registered Prosumers
Evaluation Period
Flexible
Community
Membership
Evaluation 1
Pre-Qualification
Criteria
Membership
Evaluation 2
PCG n
Evaluation n
Complying
Versus NonComplying
Members
Overall
Evaluation
Fixed
Community
Membership
PCG 2
PCG 1
Proposal 4: Ranking of Members
Surplus Energy from Members After Fulfilling the Local Demand
Energy Buying
Member
Intra-Group Energy Sharing
Standalone
Member
Energy Selling Member
Prosumer-Community-Group
Prosumer Assessment and Ranking Scheme
Assessment Criteria Definition
Criterion A. Meet the Energy Agreement
Criterion B. Produce Excess Energy than Agreed
Criterion C. Offering Energy to the Members in Need
Criterion D. Long Term Historic Energy Behaviors
Criteria Prioritization
Point Allocation
Prosumer Ranking
among the following key objectives of the energy sharing process:
1) the resource objective that aims to
maintain sufficient resources (storage and handling) to hold the information and energy produced by the
prosumer community groups, 2) a
demand objective that fulfils at least
the energy shortage of its own members, 3) a customer objective that
aims to satisfy the energy requests
of energy buyers (such as main utility grid, other community groups,
and other individual consumers),
4) an incentive objective that targets the achievement of higher
incentives, 5) a cost objective that
aims to reduce the combined cost of
bringing the energy resource to the
end-use point, and finally 6) the sustainability objective that aspires to
increase the overall number of members from all the community groups
who actively share the energy in
energy sharing framework. A goal
programming model is developed
to find an optimal solution that
negotiates among the conflicting
objectives in the order of specified
priorities. The final outcome of this
phase is a coordinated set of goals
for prosumer community groups
IEEE TECHNOLOGY AND SOCIETY MAGAZINE
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SprING 2014
that guarantees a satisfactory level
of goal attainment.
A fourth proposal has been
made to assess and rank the diverse
prosumers in any prosumer community group. This includes four
ongoing steps, as shown in Fig. 3:
1) assessment criteria definition,
2) criteria prioritization, 3) point
allocation, and 4) prosumer ranking. The assessment criteria definition step involves defining the four
assessment criteria that respectively measure the prosumer's ability to meet the energy agreement,
produce surplus energy above the
agreed amount, and share the surplus energy with the fellow members who are in need of energy,
and also measures the prosumer's
quality of long term historic energy
behaviors. In the second step of criteria prioritization, the aforesaid
criteria are prioritized based on
their relative importance for the
community group's overall sustainability. In the third step of point
allocation, points are allocated to
the members based on their capacity in satisfying the identified criteria. Finally, in the prosumer
ranking step, the prosumer community group coordinator ranks
the individual prosumers based on
the allocated points. These ranks
can be used as a benchmark for fair
incentive allocation for members.
The proposed frameworks have
been verified in simulation environments using prosumers' energy sharing profiles (generated on the basis of
Australian conditions). First, the simulation results of proposal 1 (definition of prosumer community groups)
illustrates that the proposed framework clusters the prosumers' energy
sharing behaviors into different prosumer community groups, while
detecting the outliers (the prosumers
showing unreasonable energy behaviors), and characterizes prosumer
community groups with suitable
pre-qualification criteria. Second,
the simulation results of proposal
2 (prosumer recruitment) illustrate
that non-complying prosumers are
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