RENEWABLES INTEGRATION INTO ELECTRICITY GRID
ENERGY 722: ENERGY TECHNOLOGY
Semester 1- 2025
• Assignment 4 is worth 20% of the overall grade.
• Submission Deadline: 13th May (Tuesday), 11:59pm NZST
Outline
Introduction
Assignment 4: Integrating Renewable Energy into Transmission and Distribution Grid
Report 1:
- Wind Farm Integration into the transmission networks
Report 2:
- Solar PV integration into Low-voltage distribution network
Report 3:
- Solar Far Integration into distribution/transmission network
Power System (Analysis)
Simple representation:
Actual representation:
IEEE 118 Bus network
• Three major components: Generation, transmission/distribution and Load
• Three major components: Generation, transmission/distribution and Load
• Three major components: Generation, transmission/distribution and Load
Renewable Integration
Basic issues with RE integration:
Uncertainties and variability in the solar and wind based renewable energy systems requires the efficient power system operation and planning.
Grid integration focuses on maximizing the cost effectiveness of RE by maintaining the reliability and stability of the system.
Issues related the grid integration are mainly divided in four broad topics:
- New renewable energy generation
• New transmission
• Increased system flexibility
• Planning for a high RE future
ASSIGNMENT 4-INTEGRATING RENEWABLE ENERGY INTO TRANSMISSION AND DISTRIBUTION GRID
Assignment 4
The aim of this assignment is to consolidate the concepts and issues learnt during the lecture series on electricity grid integration for renewable generation and apply knowledge to realistic case studies, addressing particular issues that is relevant to New Zealand electricity network.
Assignment 4: Deliverable
This assignment requires each student to independently submit :
Report 1- Wind farm integration into transmission network of New Zealand
Report 2- Case study for solar PV integration into distribution network
Report 3- Assessment of Solar Farm Integration into distribution/transmission network
Report 1:
Choose ANY 1 sub-topic (either from a or b) below to analyse wind integration into transmission networks.
(a) Impact of wind power variability on transmission grid security and reliability, such as:
wind farm for grid frequency control; or
operational reserve requirements for variable wind generation.
(b) Wind farm protection and coordination requirements for system operation, such as:
wind farm reactive power management; or
wind farm voltage support; or
wind farm voltage stability.
Note: There are 5 subtopics, please choose any ONE from them for your research report 1.
Report 1: Marking Rubric
Criteria Marks
Major integration problems correctly explained for the wind farm integration into transmission network 1
Integration problem relevant and important to New Zealand 1
Properly explained solutions to problems 1.5
Assessment of solution in New Zealand context 1
Format (Reference, Report Structure) 0.5
Professional engineering report format Maximum of 1 mark will be deducted if the report is not presented professional.
Report 2
The main objective is to reduce the power consumption from the grid by 1 MW (during midday in summer months) by using distributed PV systems.
I. PV is chosen as a suitable generation. Choose specific rating of the PV panel and number of those PV panels required for 1MW reduction.
II. Choose trial number of houses and identify average consumption. Choose one of the suburb in Auckland.
III. Do energy analysis. Energy consumption in that area and Feasible electricity generation by solar PV system and overall cost
IV. Connection standards for PV system
V. Consider battery storage
VI. Evaluate best solution (with or without battery?)