Student Finds Niche in Community Service

When it comes to community service, Monica Nelson’s actions speak for themselves

Finding Balance in Her Life

How one student balances triple majors with work and home commitments

Crime Lab Brings Focus to Career

How an internship helped one student make a career decision

A Commitment to Service

The memory haunts Ashlee Weimar ‘04. A teenager with a swollen face entered the hospital in Swaziland, Africa, and told of a year of continuous nosebleeds

Helping Build Communities

How long does it take to build a future? Some Linfield College students learned it could happen in just three days

The cost of active network management schemes at distribution level

The growth of wind generation in distribution networks is leading to the development of Active Network Management (ANM) strategies. ANM systems aim to increase the capacity of renewable and distributed generation (DG) that can connect to the network. In addition to DG, ANM schemes can also include storage devices and Demand Side Management (DSM) strategies. Currently ANM schemes are mainly part of network research and development programmes, funded through network innovation schemes. In future, ANM schemes will need to cover the costs of establishing such a scheme through payments from the network owners and the users of the network. This paper discusses the current charging arrangements which account for network upgrades and the access arrangements for wind farms connecting to networks which are close to capacity. The Orkney ANM scheme is used as a case study, where the costs of the implemented ANM scheme are compared to conventional network upgrades. In order to run ANM as a ‘business as usual’ case, there must be a way in which to recover the costs incurred in implementing and operating an ANM scheme on the network. These costs could be recovered through Use of System (UoS) charging, and there is an opportunity for domestic customers participating in an ANM scheme (through Demand Side Management, for example) to further reduce electricity bills by providing ancillary services to the network. ANM may increase the cost of electricity for domestic customers, however this increase can be considered substantially less than the cost incurred for significant network upgrades

An assessment of principles of access for wind generation curtailment in active network management schemes

The growth of wind generation embedded in distribution networks is leading to the development and implementation of Active Network Management (ANM) strategies. These aim to increase the capacity of Distributed Generation (DG) that can connect to a network. One such ANM strategy is generation curtailment where DG is given a non-firm connection under which the network can instruct a generator to reduce its output under specified conditions. Currently in the UK the Orkney distribution network operates a curtailment scheme for wind and other renewable generation [1]and a similar scheme is being developed for the Shetland Islands [2]. The main objective of this paper is to explore the options for Principles of Access (PoA) for curtailment of wind generation on distribution networks which employ ANM. The PoA define the commercial rules by which a DG unit obtains access to the distribution network and under an ANM curtailment scheme the PoA defines the curtailment instructions that would be sent to different DG units when network constraints occur. The scenarios studied in this paper are based on the Orkney distribution network

\u27Cat Tracks

News briefs and updates about student athletes, coaches, and alumn

\u27Cat Tracks

News briefs and updates about student athletes, coaches, and alumn

Back Cover

Scenes from January Term 2006; clockwise from top left, Austrialia, India and Londo