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Introduction. Matiu-Somes Island Wind and Solar Renewable Energy System Tony Pearson. Introduction. Brief History of the island Design Criteria Chosen System System Performance Benefits of a combined system Future for Matiu Somes Island. History. Maori Pa or Fortress - PowerPoint PPT Presentation
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Introduction Matiu-Somes Island nd and Solar Renewable Energy Syst Tony Pearson
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Introduction

Matiu-Somes IslandWind and Solar Renewable Energy SystemTony Pearson

1Introduction

Brief History of the islandDesign CriteriaChosen SystemSystem PerformanceBenefits of a combined systemFuture for Matiu Somes Island

History

Maori Pa or FortressHuman Quarantine for Early SettlersInternment camp during the world warsDegaussing station for ships during the warGun defences for Wellington HarbourAnimal Quarantine StationNature and Scientific Reserve

Power Requirements

Existing Supplies:

Unusable Cable from the Mainland64 kVA Generator36 kVA Generator16 kVA Generator 3 Phase Distribution SystemRequirements:

5 Houses, 3 motel blocks, campground, Visitors centre and office block3 full time residentsUp to 65 short stay overnight residentsUp to 400 day trip visitorsTotal load of about 25,000 kWhrs per year reducing with efficiency gains.To Provide 11,000 kWhrs per year 65% of their predicted usage.

Resources

AnnualJan FebMarAprMayJunJulAugSepOctNovDecAvg Wind Speed m/s66.55.55.55.55.55.55.55.56.56.56.56.5Avg Solar radiation kWhrs/sqm/day3.834.974.544.312.872.52.132.52.864.314.544.975.4ResourcesPredicted Generation

Storage

Flow Batteries

Lithium

Water (Pumped Storage)

Lead Acid

System

Performance

http://user.logicenergy.com/matiusomes/display.php

Performance

Long Term Monthly Performance

Medium Term Weekly Performance

Short Term Daily Performance

12Micro Term Hourly Performance

Hourly Performance

Hourly Performance

Equivalent Single Source Generation

Monthly22 kW12 kWWeekly (Winter)58 kW10 kWDaily (Winter)136 kW73 kWWeekly (Summer)20 kW16 kWDaily (Summer)35 kW32 kWExisting System4 kW6 kWSize of solar array required with solar only

Size of wind turbine required with wind only

Battery Voltage

Battery Voltage August September

Benefits

Follows the load profile more closely

Benefits of a combined system:Evens out the large peaks and troughs of power generation Allows for a smaller battery and generator usageExtends battery lifeBetter match of generation and load

Future

Making use of hydrogen for water heating or cookingFurther Reduce Dependency on imported fuels by:

Introduction of Electric vehiclesFurther electrification introduction of low wattage heaters and heat pumpsConversion from gas cooking to electric

Questions

Any QuestionsTony PearsonTecnico Energy [email protected]: 64 4 212 4873


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