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Technical And Commercial Proposal
SOLAR 1 KWp STAND ALONE, BIDIRECTIONAL,
ROOF TOP SYSTEM
For
With 3-4 hrs back up
PRESENTED BY
PRACHI SOLAR
SOLAR DIVISION
SAMAYPUR, NEW DELHI, INDIA
1. Introduction:
The proposal is prepared to give an overview of design supply, installation and commissioning
of.
1. Solar Power backup system with 1000 Wp solar PV modules and 3-4 hours of backup
with grid charging option, at the roof top – stand alone system.
Pay back period – with DG set Less than 4 yrs
Area required on top of the roof top 10 Sq mtrs
Life of the SPV Panels 25 Years
Co2 emission saved per annum 600 Kg
Power generated from the system per annum 1800 units
Warrantee on inverters and charge controllers 2 yrs
Warrantee on Batteries 18 months.
Warrantee on Modules 10 yrs.
2. Company Profile:
PRACHI SOLAR is the leading Power Back-up Solution provider in India, with its consistent
focus on technological innovation, has attained heights unheard of, in the largely unorganized
industry. Having a clear technological edge, creating new benchmarks and upgrading
standards for the industry, comes naturally to Prachi Solar.
SOLAR RADIATION AND RADIATION MAP:
The position of the sun in the sky is critical in order to ensure system design which maximizes
energy output. It can be seen that majority of the time the sun is in the southerly direction,
hence we should orient the PV modules to the south, so that we can utilize majority of solar
radiation and achieve higher output. Based on seasons and solar position, the number of
daylight hours available also varies by the month.
3. System Block Diagram:
The system block diagram shown in figure.1 consists of the following components:
1. PV Array of the required Capacity:
Module Specification
SL.N PARTICULARS SPECIFICATIONS
1 MODULE Prachi solar 12/ 100
2 PEAK POWER 100 Wp
3 POWER TOLERANCE 100 ± 3%
4 Voc 21.60 V
5 Isc 5.17 A
6 Vpm 17.82 V
7 Ipm 5.81 A
8 MAX. SYSTEM POWER 100 Wp
9 SERIES FUSE RATING 15 A
13 OPERATION TEMPERATURE RANGE 20°C to 90°C
2. Solar Power Conditioning unit :
3. Batteries :
TECHNICAL SPECIFICATIONS OF TUBULAR BATTERY
BATTERY TYPE SBT 1500 SBT 1800
CAPACITY (AH) 20HR (REF) 150 AH 180 AH
Volts 12 12
CHARGING CURRENT (AMPS) 9 11
Maximum Dimension (mm)
L / W / H 503 /191 /410 503 /191 /410
4. AC cabling and protection devices : As per company and IS standards.
5. Module mounting structures: powder coated Ms angle with all IS standards.
Single line diagram of the solar system :
Fig.1 Basic Block Diagram of Solar PV Stand alone Bi directional System.
PROPOSED LOAD DETAILS
4. Assumptions for Design:
The Solar Radiation Data’s are based on standard books & simulation software. The Mean
hourly Radiation Data between 8AM and 4PM is considered. The PV Power Plant is
bidirectional solar system. Module mounting structure will be mounted on top of the terrace.
Bill of Materials for 1000 VA solar hybrid bidirectional system as follows:
S.No Description Unit Quantity
1 Solar PV Array capacity 1000 Wp -250 Wp X 4 Nos. Set 1
2 Power condition unit -1000 VA Pce 1
3 Battery 12v 180 ah Pce 6
5 Module Mounting Structure Set 1
6 Cables and accessories Set 1
S.NO Capacity of Solar
inverter
Load WATTAGE QTY HOURS OF
Backup
Required
Total Watt hrs
Assured
1 1000 VA 800 WATTS 1 3-4 hrs 1440 TO 1800
WHRS/Annum
Commercials :
Under Section 32 of Income Tax Act, profit making industrial, commercial and urban
establishments can avail an accelerated depreciation of 80% on Solar Power Generating
Systems and Solar PV Modules.
Additionally, incentives in the form of capital subsidy are available from the Ministry of New
and Renewable Energy, Government of India as per the scheme for Abatement of Diesel
Generation in Industrial Installations. These incentives are Rs 90/Wp upto a maximum of 30%
of equipment cost.
The net payback period is 4-5 years with the capital subsidy and 10 years without it. After the
completion of the payback period, the generation of power is free and all the power
generated from PV becomes power saved.
Prachi Solar will assist you to process the subsidy application with MNRE for this project.
Pay back period calculations:
Baseline Commercial Assumptions
for 1000Wp Parameter
Capacity of PV Installation 1 KWp
Operating Life 25 Years
O&M & Insurance 2.00% Per annum
Diesel Price Rs 44/-
Diesel Generation Cost/unit Rs 16/ kWh
Inflation in Diesel Price 5%
Total Capital Cost of PV System Rs. 2.40 Lakhs
Depreciation in 1st year at 80% Rs. 1.92Lakhs
Income Tax Savings at 30% Rs. 0.58 Lakhs
Capital Subsidy at 30% of PV equipment cost Rs. 0.72 Lakhs
Effective Capital Cost of PV System Rs. 1.10 lakhs
Units produced per year from solar system - 5 to 6 units x 30 days x 12 months
1440 to 1800kWh/year
Diesel, oil, maintenance and skilled technician expenses /annum Rs30000/PA
Pay back 1.10lakh/0.30 lakh
Payback period from solar when compared to DG set
LESS THAN 3.6YRS
6. Commercial Offer:
S.NO Description QTY Price (INR)
1
SolarPower backup 1000 Wp System
with 3 hour backup and with grid
charging option.
1
2,40,000.00
In words : Two lakhs forty thousand only.
Note : subsidy amount Rs.72,000/- will come to customer, directly after installation and
commissioning and sanctioning from MNRE and nodal state agency.
Customer has to pay full invoice amount by A/C payee cheque to Prachi Solar, while signing PO.
7. General Terms and Conditions:
1. These prices are inclusive of Vat/CST.
2. All products are manufactured as per Prachi Solar design guidelines.
3. 100% advance payment along with confirmed purchase order.
4. Prices of the mentioned products are Valid for 30 Days.
5. Installation charges Rs.10,000/- per KWp are extra, and fabrication work to mount
modules as per customer choice is extra as applicable.
6. Entry tax/ octroi shall be charged extra.
7. Delivery shall be made either with ex-stock or within 4-5Weeks after the confirmation of
P.O
