cost reduction in the value chain of solar mini grid ... · the smart-meter • pre-assembled, easy...
TRANSCRIPT
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Cost reduction in the value chain of solar mini grid installation in Nigeria.
Hasna KhanPSL-USA
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Capex distribution of Small Solar mini grid (30kW)
in India ‘Utility in a Box’
PV Panels18%
Battery Bank20%
Diesel Generator7%
Inverter11%Charge Controller
5%
Fencing, civil, Misc5%
Poles & Cables15%
Structure & Installation
8%
Cables4%
BoS7%
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CapEx of Solar Mini Grids (30kW) in India - opportunities for further cost reductions
18%
100%
20%7%
11%5%
5%
15%8% 4%
7%
PV panels Battery bank Dieselgenerator
Inverter Chargecontroller
Fencing &civil work
Poles &cables
Structure &installation
Cables Balance ofsystem
Total
Current CapEx$1.65/watt* for
30kW system
Potential for future cost reduction
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Impact of storage on Capex unit cost of Solar Power Plant
(200kW and 500kW)
1 2 3 4 5 6PV(kW) 500 500 500 200 200 200Batt Bank(kWh) 400 800 1600 160 320 640Backup Load(kW) 200 200 200 80 80 80Backup Time(Hr) 1 2 4Backup Time(Hr) 1 2 4
0
1
2
3
4
5
0100200300400500600700800900
10001100120013001400150016001700
Hou
rs
Plan
t Size
kW
200 kW Plant
1.29 $/Wac
1.61 $/Wac
2.26 $/Wac
1.40 $/Wac
1.78 $/Wac
2.43 $/Wac
500 kW Plant
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Costs: CapExSolar mini-grid in India (30kWp)
• Controls load, time-of-use and payments for individual users (prepay & post-pay)
• Designed for off-grid applications; can be modified for grid connectivity
• Shared architecture: up to 6 meters/ users per box
• Comprehensive system-wide usage data available locally and centrally
• Integrated payment of appliances for on-bill financing & Mobile Payments
• Customers can track consumption via smartphone or in-house display unit
The ”Utility-in-a-box” (UiB) The smart-meter
• Pre-assembled, easy to install system (
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(UiB) in India
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UiB and smart-meter: In the field
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3.255 3.1933.400
3.844 3.8303.685
3.221
2.536 2.576 2.542
3.1933.353
0
500
1.000
1.500
2.000
2.500
3.000
3.500
4.000
4.500Summer
A typical 30 kW plant can produce, on average over the year, 3,200 kWh per month, or about 105 kWh per day
Peak Winter Mild Winter
Dec
Source: Data from SPI plant in Bihar, December 2017 through November 2018
Jan Feb
Mar Apr May Jun Jul Aug
Sep
Oct Nov
Max. solar output; units (kWh) per month
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30 kWp Solar UiB Plant (Bihar, India)
The UiB Design eliminates the need of a Control Room, thus reducing the need for major civil work at site.
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Modular Control Panels along with Battery Box
The capacity of the plant can be increased as required by adding pre-assembled control and battery boxes.
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All Control Panels are design engineered to withstand heat, dust and water
All Panels are designed IP54 and placed under the panels.
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Scalable Model – Additional Panels can be added to increase capacity.
Both the AC Power and Stored Power can be increased as the demand in the rural area increases.
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Smart meters with distribution line using RF Mesh Network
pre-pay and post-pay; remote monitoring and load management; Including a new feature on-bill financing of appliances
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69% 72% 77%92% 96% 100%
Cost in the Value Chain of Solar Mini grids for Nigeria
Cost(USD)
USD/Wdc
USD/Wac
Base Cost (enhanced UiB30)
78,000
2.50
$3.82
Export Tax (India)
3,900
5%
Shipping (India-Nigeria)
5,000
Customs (Nigeria)
17,380
20%
Landed Cost
104,280
3.34
5.11
Local Transport
4,000
Installation
5,000
Total cost
113,280
3.63
5.55
Price of installed mini grid (USD)
124,800
4.00
6.12
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Adding commercial loads to household and PUA
Daily units consumed, kWh
~125
1117 3 5
32 710
1820
Basicappliances
EEappliances
Basicappliances
EEappliances
Irrigation WTU Oil expeller Flour mill CommercialEEA
Total
Households Shops Small enterprises
Summer Mild Winter
Peak Winter
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500
1.000
1.500
2.000
2.500
3.000
3.500
4.000
4.500
5.000
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Uni
ts P
er M
onth
Solar Diesel Maximum Solar Battery Charge Consumption
Cost reduction in the value chain of solar mini grid installation in Nigeria. Capex distribution of �Small Solar mini grid (30kW)�in India ‘Utility in a Box’� CapEx of Solar Mini Grids (30kW) in India �- opportunities for further cost reductionsImpact of storage on Capex unit cost �of Solar Power Plant�(200kW and 500kW)Costs: CapEx�Solar mini-grid in India (30kWp)Número de diapositiva 6UiB and smart-meter: In the fieldA typical 30 kW plant can produce, on average over the year, �3,200 kWh per month, or about 105 kWh per day30 kWp Solar UiB Plant (Bihar, India)Modular Control Panels along with Battery BoxAll Control Panels are design engineered to withstand heat, dust and water Scalable Model – Additional Panels can be added to increase capacity.Smart meters with distribution line using RF Mesh Network Número de diapositiva 14Adding commercial loads to household and PUA