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PV System Design

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by

Kylie Chan

on 9 August 2016

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Transcript of PV System Design

Calculating The Insolation
Then The State of charge for the battery Is calculated for each day.
This Data is then Plotted
And the User Is Provided With Summary
The program is a Matlab based function that uses the specification for stand alone solar combined with load data and daily insolation data to model system performance.



PV System Design for a Home on
Lord Howe Island

Introduction
Load Analysis
System Design Program
System Design Components
48 of 250W Matrix Solar Panel (Solar Array)
TORNADO 48V 1000ah Tubular Gel Solar Battery Bank (Battery Bank)
MORNINGSTAR 60 AMP 600 VDC MPPT CHARGE CONTROLLER (Regulator)
SMA Sunny Island SI 6048-US 6000W 48V Inverter Smartformer Compatible (Inverter)
Daniel Chen
Wing Ki Kylie Chan
Nicholas Gorman
Kenny Phang
Yonggun Lee

System Design Goals
System Design Optimisation
Financial Analysis
Questions?
References
Location:
Lord Howe Island
Coordinates
-31.55, 159.08
Table based on lecture notes
Determining the load...
Function Format
Standalone(insdata , latitude , loadhourlykw, userpvangle, userbatterysize, batteryvolt , userpvsize, userpvazimuth, batterycostkwh, pvcostkw, mincharge , minavailability)
Hourly load
values are in Watts-hours
Daily, weekly and yearly loads
The Modeling Process
availability~99%
reliability
cost
ease of maintenance and repair
flexibile
Block Diagram
Why???
Capital Cost = $PV Panel + $Battery + $Inverter + $Regulator
= $289 * 48 + $15,576 + $1,169.85 + $4,159.58 = $34,777.43
Operational and Maintenance Cost Solar PV = 48 * 250W = 12kW, O&M = $6/kW-yr * 12kW = $72/yr
Just A Bit of Background Information
Example:
Population: Approximately 360 People
The island currently runs on 3 300kW diesel generators
64,000L of diesel fuel stored underground with fortnightly deliveries by ship
Diesel costs are expensive
-$1.70/L which makes electricity pricey
Regulators
Lord Howe Island Hybrid Renewable Energy System
.... SO WHAT ARE WE DOING?
Proposed in July 2014
Project adds 1MW renewable energy systems
- 450kW Solar PV
- 550kW Wind Power
- 400kW Battery Storage

Power entire island by 70% renewable energy by 2018
Overview
Introduction and Site-
Daniel

Load and Design Goals-
Wing Ki
System Design Program-
Nicholas

System Design
Sizing and optimisation-
Daniel

PV System Components-
Kenny

Financial Analysis-
Yonggun


Designing a standalone system for a standard 4 person home
We wanted a project close to a real life situation
With all the possible challenges
Lord Howe Island - 196.5 rainy days per year
Location and inaccessibility
Life Cycle Cost & Levelised Cost
Average Interest = 5.24%(1994-2014)
Average Diesel Electricity Cost = 39C/kWh
FV of Capital Cost = $34,777.43 * (1+ 0.0524)^25 = -$124,686
FV of Battery Cost = -$85,483
FV of Saving Cost - O&M Cost = $99,464
Total Life Cycle Profit = -$110,705

Levelised Cost = $2.177/kWh
$34,777.43

$15,576
$72
$2088
What Others did:
Optimal tilt = Latitude + 20 degrees
What we did:
...and Inverters
http://www.ecohub.perth.wa.gov.au/resources/appliance-energy-usage-guide/
http://www.energyrating.gov.au/wp-content/uploads/Energy_Rating_Documents/Product_Profiles/Other/Burglar_Alarms/sb200415-burglaralarms2.pdf
http://aussiehomeenergy.com.au/html/lighting.html
Lecture notes:Stand Alone Photovoltaics System Design
Full transcript