Back to home page

Transmission of Renewable Energy

Introduction to our project

Studying the current scheme of transmission and distribution networks we can notice the increasing levels of  distributed generation(embedded generation).This is occur because of the ongoing usage of distributed generation with CHP and  renewable sources and also the advantages that distributed generation offers.

In our project  we tried  to study the transmission of renewable energy in co-ordination with distributed generation and we focused  in a case study in order to derive  useful conclusions about the economical,environmental and social feasibility of  using distributed generation for the transmission of renewable energy.

Distributed generation can be defined as power generation that is connected directly to the distribution network instead of the transmission electricity grid

 And also

  • Not centrally planned(by the utility)

  • Not centrally despatched

  • Normally smaller than 30-50 MW

This is a typical figure for distributed generation ,where we can see the connection of the generator not to the transmission grid but directly to the distribution substation

 

Distributed generation can be used for various purposes and by that we mean

  • for meeting minimum constant loads as a base load
  • As a stand-by for meeting peak loads
  • and finally in order to Avoid reinforcement of transmission and distribution network by picking a strategic location for our distributed generation

Currently in Scotland there is installed capacity from distributed generation about 1771 (one thousand seven hundred and seventy one MW)  and is expected to reach

2250-2500 MW by the year 2005.

In this Pie Chart we have the percentage for both centrally dispatched and distributed generation in Scotland.

 

Although the continuant increase of D.Generation, there are certain barriers that have to be examined very carefully in order to succeed further development of DG in the future.

There are some barriers that

are not technical and have to do with:

-the regulatory framework(for example deep charges should not be paid solely by new distributed generators as they are not the only party responsible for the  connection reinforcements ,but the changes should divided amongst all contributing generators)

-grid connection issues

-planning permission

and the technical barriers  have to do with

-forecasting and scheduling of Demand and supply  in connection with location and time of the year

-and also various problems that have to do with controlling and measuring D.G

Back to home page