1400-1415 ddamulira sekitene grid connected solar pv p1 wed

8/2/2019 1400-1415 Ddamulira Sekitene Grid Connected Solar PV P1 Wed

1/19

MID YEAR PROJECT

PRESENTATIONS

Presentation by;

1. Ddamulira Lawrence

2. Sekitene Ronald

Supervisors

1. Mr. Rutalo Michael

2. Prof. Lugujjo Eriabu


2/19

PROJECT TITLE

Installation of grid connected solar PV systems as a means

of coping with load shedding.


3/19

PROJECT BACKGROUND

The Ugandan government continues to devise means

of reducing the severity of Energy deficits.

Only a small portion of the Hydro power potential

estimated at over 2000MW has beentapped.(approximately 33%).

Consumers need to find means of coping with the load

shedding on an individual basis.

Renewable energy sources are a major option.


4/19

PROBLEM STATEMENT

There is an energy deficit of at least 100MW and

50MW during peak and off peak demand periods

respectively according to UETCL.

As a consequence of the energy deficits, the Utility

Company Umeme is compelled to carry out scheduled

load shedding .


5/19

TYPICAL LOAD CURVE, UGANDA


6/19

PROJECT JUSTIFICATION

Ugandan power consumers need to come to terms with

the existing state of affairs.

Measures in place so far will not be able to alleviate

the Energy deficit because increase in demand farexceeds growth in generation.

The load growth is estimated at 10% per annum, with

an approximate 17,000 new residential connections per

annum as per 2010 according to Umeme


7/19

PROJECT JUSTIFICATION

Uganda is endowed with plenty of sunshine giving

solar radiation of about 4-5 kWh/m2/day

This level of insolation is quite favorable for all solar

technology applicationsThe Ugandan government has a target of raising the

renewable Energy usage to 61% by 2017.


8/19

MAIN OBJECTIVE

To optimize the design of grid connected solar P.V

systems under Ugandan conditions.


9/19

SPECIFIC OBJECTIVESTo establish the average power consumption of

residential consumers for a given sample within a casestudy area.

To size an appropriate grid connected solar P.V system

basing on the average power consumption establishedfrom the case study area.

To determine the overall initial capital investmentrequired for installation of the Grid connected solar

P.V systems.To harmonize power being contributed by the solar P.V

system with the grid in terms of frequency and voltage.


10/19

METHODOLOGY

Literature Survey

Sizing the PV system suitable to supply the existing

load

Consultations with Ministry of Energy and Mineraldevelopment.

Consultations with the department of meteorology for

the up to date sunshine data

Consultation with the main solar companies involvedin supply and installation of PV systems.


11/19

EXPECTED RESULTSAn Optimum design of a grid connected solar P.V system.

The initial capital investments required in the installation ofa particular size of grid connected solar P.V system for ahousehold.

The possible reduction in the consumers monthly bill as aresult of the installation of the grid connected solar P.Vsystem.

How the option of grid connected solar P.V systemcompares with other possible ways of coping with loadshedding in terms of cost, constraints and benefits.

Recommendations as to best ways of realizing maximumefficiency of grid connected solar P.V systems underUgandan conditions.


12/19

PROGRESS

Covered most of the relevant literature

Obtained a partnership with the Ministry of Energy

and Mineral development to execute the project under

supervision of Eng. Atwine Abdon.Established a case study residential area in Gayaza,

Wakiso district.

Established the average load demand from a sample of

five homes in the case study area.


13/19

TYPICAL SYSTEM DESIGNS

1. Grid interactive only;

y Mainly suitable in cases where utility outages are rare.

2. Grid interactive with battery back up.

y

Can work well even for cases with common utilityblackouts, just like Uganda.

y battery keeps critical load circuits in the house

operating during a utility outage


14/19

GRID INTERACTIVE ONLY

BLOCK DIAGRAM


15/19

SYSTEM WITH BATTERY BACKUP


16/19

SIMPLE SYSTEM LAYOUT


17/19

THE HOUSEHOLDS SAMPLED


18/19

LOAD DEMANDHOME 1 HOME 2 HOME 3 HOME 4 HOME 5

Lighting 277W 506W 714W 754W 205W

Entertainment

equipment

602W 601W 574W 448W 2461W

Heating

equipment

1695W 5500W 1790W 5545W 2100W


19/19

TIMELINE

1400-1415 ddamulira sekitene grid connected solar pv p1 wed

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