Renewable Energy Overview

1
Renewable Energy Overview

• Ray Byrne
• Centre for Renewable Energy at Dundalk IT
• CREDIT

2
Renewable Energy Technology Overview

• Renewable Energy Overview
• Solar
• Heat Pumps
• Biomass
• Wind Autoproduction experience at DkIT
• Visit to DkIT Wind Turbine

3
Renewable Energy Technology Overview

• Solar
• Photovoltaic (PV) Electricity from Sunlight

15 efficient
4
Renewable Energy Technology Overview

• Solar PV

• In an Irish climate a PV System will generate
  75kWh-90kWh per m2 per year
• Long payback times

5
Renewable Energy Technology Overview

• Solar Thermal heat from sunlight

Evacuated Tube
Flat Plate
400-550 kWh per m2 per year
6
Renewable Energy Technology Overview

• Evacuated Tube
• More Efficient
• More Expensive
• Suitable for medium to high temperature 60C
• Works on cloudy days

• Flat Panel
• Robust
• Relatively Cheap
• Suitable for low to medium temperatures 50C
• Works on cloudy days

7
Renewable Energy Technology Overview
Heat Pumps extract energy from low temperature
sources and raises the temperature to useful
levels (30oC to 65oC)
8
Renewable Energy Technology Overview

• Biomass wood pellet, wood chip, miscanthus,
  straw
• Wood chip systems 30kW up to 1000kWs

9
Renewable Energy Technology Overview

• Wood pellets compressed sawdust 3 times
  density of wood chip. Systems are small scale
• Wood pellet systems 8kW up to 50kW

10
The Campus Wind Turbine at Dundalk Institute of
Technology
11
The Dundalk Wind Turbine - Grid

• Our turbine could be categorised either as an
  Autoproducer or as a Generator
• Since we wanted to use our electricity locally,
  we decided to be an Autoproducer

12
The Dundalk Wind Turbine - Overview

• Feasibility work resulting in SEI grant 2002
• Full planning permission granted 2003
• Finance secured, bids solicited and contract
  awarded to Vestas 2004

13
The Dundalk Wind Turbine - Overview
14
The Dundalk Wind Turbine - Overview

• Civil works April/May 2005
• Turbine installation August 2005
• Turbine operation October 2005

15
The Dundalk Wind Turbine - Overview

• V52-850kW machine, average power output of 25 of
  the rated power 200kW
• Total cost 1,127,000 including 13.5 VAT
• The turbine will pay for itself in less than 8
  years (without SEI grant)
• This is comparable to projects at windier sites,
  because we are offsetting electricity purchase at
  the retail rate (vs. selling at a bulk rate)

16
2 May
17
13 May 2005
18
17 May 2005
19
18 May 2005
20
(No Transcript)
21
August 22 2005
22
(No Transcript)
23
(No Transcript)
24
(No Transcript)
25
August 24 2005
26
The Dundalk Wind Turbine - Grid
DkIT 10kV Electrical Compound
Power to various college buildings
Circuit breakers
metering
Power to and from ESB grid
27
The Dundalk Wind Turbine Production
2007- 1.5 million kWh 2008 on target to
produce 1.8 to 1.9 million kWh
28
The Dundalk Wind Turbine Future work

• Current related research
• We have done initial theoretical studies on the
  value of electricity storage in wind
  autoproduction applications
• We are now proceeding to install a flow battery
  at DkIT

29
The Dundalk Wind Turbine

• Now there will be a visit to the turbine.
• Thank you!