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1.Training Course:
Standalone Solar PV System
Design, Installation for engineers
BY
Eng.Eyad Adnan
https://www.linkedin.com/groups/12107513
Conducting a Site Assessment and   PV System Field Survey
Conducting a Site Assessment and   PV System Field Survey
Conducting a Site Assessment and   PV System Field Survey
• Goals of Course
• Project Profile
• PV sample Projects
• Site Surveying
- GPS coordination
- Metro Geographical Data and analysis
• Shading
- Consideration
- effects and treatments
• PV system Field surveying
• To be familiar with Designing standalone PV grid
• To prepare PV bidding, specification and BOQ
• To get knowledge with off-grid solar power
system
• To specify the best brands for off grid solar
components
• To recognize the AUS/NZS and IEC standards
• To simulate PV Grid by Pvsys software
• Profile Project or Size Project
• client details:
• Address project
• Project Name
• Contract, consulting and Owner companies
• TOTAL POWER CAPACITY AND AREA
Conducting a Site Assessment and   PV System Field Survey
Conducting a Site Assessment and   PV System Field Survey
Conducting a Site Assessment and   PV System Field Survey
Conducting a Site Assessment and   PV System Field Survey
Conducting a Site Assessment and   PV System Field Survey
• DATA COLLECTION:
1. Solar Irradiation :
to specify the total required PV to macth demand customer power
2. Location GPS : to orient PV panels and elevation angle for
shading concern
3. PV panels mounting type
4.Any obstacles to avoid shading problems
4.Amobient condition for the sit location to check power grid
losses /degrading temperature factor
5. Searching place and room for DC batteries , inverters and other
equipment
6. Total available area and free spaces “m^2”
 What is Solar irradiation
 On-site Visit
 Roof types and site evaluation
 Site Assessment
• 1. Go to:https://www.gps-coordinates.net/
Conducting a Site Assessment and   PV System Field Survey
2. Go to :
https://eosweb.larc.nasa.gov/cgi-
bin/sse/grid.cgi?email=luke.s@wildmail.com
Daily, Monthly, annual averaged insolation incident on
horizontal surface in kWh/m2/day
Multi-year average of the temperature of the Earth's
surface
Average Air Temperature at Ten Meters Above the Surface
of the Earth.
Maximum Air Temperature at Ten Meters Above the
Surface of the Earth.
Minimum Air Temperature at Ten Meters Above the
Surface of the Earth.
Meteorological Data Assessment
Meteorological Data Assessment
Meteorological Data Assessment
Meteorological Data Assessment
Site & Meteo Details
Location coordinates 31.527N, 34.3E
Avg. Ambient Temperature (0C) Max Average Min
33.4 25.1 14.3
Relative humidity 76.1%
Avg. Daily Solar irradiation-
Horizontal
5.25 Kw-hrs/m2/day
Atmospheric Pressure 98.2 kPA
Wind Speed 2.2 m/s
Avg. Earth temperature
(0C)
Max Average Min
36.8 26.1 14.1
Height from sea level 21m
Project Details
Type of installation Ground-mounted
Estimated array peak power 850kWp
Shading consideration Shade-free
LT voltage 415-480V AC
Phase connection 3-phase
Grid frequency 50Hz
Required area 5600 sqm
Expected Project Cost
Meteorological Data Assessment
1. Average, Max, Min Air Temperature
Meteorological Data Analysis
1. Average Insolation Incident Kwh/m2/day
Meteorological Data Analysis
1. Why shading is problem ??
Overheating
Low performance solar collector
2. Shade-free-No Risk Shading
Open area :inter-row shading by designing -
raw space between PV rows
3. Uniform shading
4. Un-uniform shading IS VERY IMPORTANT
Conducting a Site Assessment and   PV System Field Survey
Conducting a Site Assessment and   PV System Field Survey
Conducting a Site Assessment and   PV System Field Survey
Conducting a Site Assessment and   PV System Field Survey
Conducting a Site Assessment and   PV System Field Survey
Conducting a Site Assessment and   PV System Field Survey
Conducting a Site Assessment and   PV System Field Survey
Conducting a Site Assessment and   PV System Field Survey
Conducting a Site Assessment and   PV System Field Survey
Conducting a Site Assessment and   PV System Field Survey
Conducting a Site Assessment and   PV System Field Survey
• Hnaweh HSL72S
1. the way in which the inverter performs
the maximum power point tracking
(MPPT), mean that modular
configurations are not always the least
susceptible to shade effects.
2. central-, string- and module-inverter
configurations,```
3.3 Inverter MPP track
3. Shading Treatment
Conducting a Site Assessment and   PV System Field Survey
1. Elevation or Latitude Angle for preventive
shading:/
• An important parameter in the design of
photovoltaic systems is the maximum elevation
angle, that is, the maximum height of the sun in
the sky at a particular time of year.
• This maximum elevation angle occurs at solar
noon and depends on the latitude and
declination angle as shown in the figure below
Conducting a Site Assessment and   PV System Field Survey
See my article:
https://www.linkedin.com/pulse/cost-optimize-azimuth-angle-tilt-over-
photovoltaic-solar-eyad-adnan/
 No cost optimizing can be achieved at hemisphere area by setting the azimuth angle
to 180 "PV oriented to south orientation" and the hemisphere south the azimuth
angle is 0.
Conducting a Site Assessment and   PV System Field Survey
Conducting a Site Assessment and   PV System Field Survey
Conducting a Site Assessment and   PV System Field Survey
• How much area we need to our project ??
-The required area for all PV nodules = total KWp/160 W
I.e. each 160 wattage = 1 m2 @nominal cond
- The required area for shading phenomena = 70 % of
total area
- The free area and equipment area = 30 %
- Safety factor upon your economic issue
𝑇𝑜𝑡𝑎𝑙 𝑎𝑟𝑒𝑎 =
𝑡𝑜𝑡𝑎𝑙𝑘𝑤𝑝
160
∗ 1.7 ∗ 1.3
-if the project is only one raw such as building roofs
The shading and free area factors will be small
• Site Surveying is the first step for designing and installing
PV grid
• Average solar radiation, site latitude, sun elevation angle
and shading effects should be investigated during site visit
and assessment
• Shading can be eliminated by free space between PV rows,
PV bypass panels , tilt angle and MPP track in string
inverters
• Tilt angle of PV panel can determine by site latitude angle
• Azimuth angle or PV orientation to south sun at northern
hemisphere
• Shading can be either uniform or non uniform shading
• No cost optimizing can be achieved at
hemisphere area by setting the azimuth angle
to 180 "PV oriented to south orientation" and
the hemisphere south the azimuth angle is 0.
• Tilt angle is fixed to your latitude building +15
in winter and -15 in summer;
• the fixed tilt angle over year is the average
angle between tilt angle in summer and
winter
• AS/NZS 4509.2
• AS/NZS 5033:2014
• PVTRIN Handbook

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Conducting a Site Assessment and PV System Field Survey

  • 1. 1.Training Course: Standalone Solar PV System Design, Installation for engineers BY Eng.Eyad Adnan https://www.linkedin.com/groups/12107513
  • 5. • Goals of Course • Project Profile • PV sample Projects • Site Surveying - GPS coordination - Metro Geographical Data and analysis • Shading - Consideration - effects and treatments • PV system Field surveying
  • 6. • To be familiar with Designing standalone PV grid • To prepare PV bidding, specification and BOQ • To get knowledge with off-grid solar power system • To specify the best brands for off grid solar components • To recognize the AUS/NZS and IEC standards • To simulate PV Grid by Pvsys software
  • 7. • Profile Project or Size Project • client details: • Address project • Project Name • Contract, consulting and Owner companies • TOTAL POWER CAPACITY AND AREA
  • 13. • DATA COLLECTION: 1. Solar Irradiation : to specify the total required PV to macth demand customer power 2. Location GPS : to orient PV panels and elevation angle for shading concern 3. PV panels mounting type 4.Any obstacles to avoid shading problems 4.Amobient condition for the sit location to check power grid losses /degrading temperature factor 5. Searching place and room for DC batteries , inverters and other equipment 6. Total available area and free spaces “m^2”
  • 14.  What is Solar irradiation
  • 16.  Roof types and site evaluation
  • 18. • 1. Go to:https://www.gps-coordinates.net/
  • 20. 2. Go to : https://eosweb.larc.nasa.gov/cgi- bin/sse/grid.cgi?email=luke.s@wildmail.com Daily, Monthly, annual averaged insolation incident on horizontal surface in kWh/m2/day Multi-year average of the temperature of the Earth's surface Average Air Temperature at Ten Meters Above the Surface of the Earth. Maximum Air Temperature at Ten Meters Above the Surface of the Earth. Minimum Air Temperature at Ten Meters Above the Surface of the Earth. Meteorological Data Assessment
  • 24. Site & Meteo Details Location coordinates 31.527N, 34.3E Avg. Ambient Temperature (0C) Max Average Min 33.4 25.1 14.3 Relative humidity 76.1% Avg. Daily Solar irradiation- Horizontal 5.25 Kw-hrs/m2/day Atmospheric Pressure 98.2 kPA Wind Speed 2.2 m/s Avg. Earth temperature (0C) Max Average Min 36.8 26.1 14.1 Height from sea level 21m Project Details Type of installation Ground-mounted Estimated array peak power 850kWp Shading consideration Shade-free LT voltage 415-480V AC Phase connection 3-phase Grid frequency 50Hz Required area 5600 sqm Expected Project Cost Meteorological Data Assessment
  • 25. 1. Average, Max, Min Air Temperature Meteorological Data Analysis
  • 26. 1. Average Insolation Incident Kwh/m2/day Meteorological Data Analysis
  • 27. 1. Why shading is problem ?? Overheating Low performance solar collector 2. Shade-free-No Risk Shading Open area :inter-row shading by designing - raw space between PV rows 3. Uniform shading 4. Un-uniform shading IS VERY IMPORTANT
  • 40. 1. the way in which the inverter performs the maximum power point tracking (MPPT), mean that modular configurations are not always the least susceptible to shade effects. 2. central-, string- and module-inverter configurations,``` 3.3 Inverter MPP track 3. Shading Treatment
  • 42. 1. Elevation or Latitude Angle for preventive shading:/ • An important parameter in the design of photovoltaic systems is the maximum elevation angle, that is, the maximum height of the sun in the sky at a particular time of year. • This maximum elevation angle occurs at solar noon and depends on the latitude and declination angle as shown in the figure below
  • 45.  No cost optimizing can be achieved at hemisphere area by setting the azimuth angle to 180 "PV oriented to south orientation" and the hemisphere south the azimuth angle is 0.
  • 49. • How much area we need to our project ?? -The required area for all PV nodules = total KWp/160 W I.e. each 160 wattage = 1 m2 @nominal cond - The required area for shading phenomena = 70 % of total area - The free area and equipment area = 30 % - Safety factor upon your economic issue 𝑇𝑜𝑡𝑎𝑙 𝑎𝑟𝑒𝑎 = 𝑡𝑜𝑡𝑎𝑙𝑘𝑤𝑝 160 ∗ 1.7 ∗ 1.3 -if the project is only one raw such as building roofs The shading and free area factors will be small
  • 50. • Site Surveying is the first step for designing and installing PV grid • Average solar radiation, site latitude, sun elevation angle and shading effects should be investigated during site visit and assessment • Shading can be eliminated by free space between PV rows, PV bypass panels , tilt angle and MPP track in string inverters • Tilt angle of PV panel can determine by site latitude angle • Azimuth angle or PV orientation to south sun at northern hemisphere • Shading can be either uniform or non uniform shading
  • 51. • No cost optimizing can be achieved at hemisphere area by setting the azimuth angle to 180 "PV oriented to south orientation" and the hemisphere south the azimuth angle is 0. • Tilt angle is fixed to your latitude building +15 in winter and -15 in summer; • the fixed tilt angle over year is the average angle between tilt angle in summer and winter
  • 52. • AS/NZS 4509.2 • AS/NZS 5033:2014 • PVTRIN Handbook