CONFERENCE ON A3: AVAILABILITY, ACCESSIBILITY AND AFFORDABILITY OF POWER IN INDIAThe Roadmap to Ensuring Power For Allon 06 May 2015, CII-Sohrabji Godrej Green Business Centre, Hyderabad

Prof.Narashima Kishore Koka, CEO

Er.Swaminathan, M.Tech, Project Engineer

Er.Ms.Mahira Banu,B.E,Project Engineer

Solar Rooftop- Case Study of Karnataka

Introduction

A rooftop photovoltaic power station, or rooftop PV system, is a Photovoltaic system that has its electricity-generating solar panels mounted on the rooftop of a residential or commercial building or structure.

Rooftop PV systems on residential buildings typically feature a capacity of about 5 to 20 kilowatts (kW), while those mounted on commercial buildings often reach 100 kilowatts or more.

Key Facts

India’s current installed power capacity: 254 GW India’s current RE portfolio: 33.79 GW India’s RE generation potential from commercially exploitable

resources: 895 GW India’s RE target for 2022: Total generation capacity = 175 GW § Solar: 100 GW (60 GW Ground Mount, 40 GW Roof Top)

§ Wind: 60 GW § Others: 15 GW (Small-Hydro, Biomass) Total investments expected by 2022: US$ 100 Billion Total no. of companies committed to India’s RE

growth: 293 Total commitment from RE developers: 266 GW

Total commitment from Mfg. sector: 23 GW Debt funding commitment from Banking sector: 78

GW Investment commitment from overseas

companies: 58 GW

Solar Rooftop System

3 TYPES OF ROOFTOP SOLAR PV SYSTEMS1. Grid-tied :

These rooftop systems are primarily designed to supply the generated power to the grid and also power the load.

These systems will NOT generate power during a power failure as the inverter shuts down the system to stop sending power into the grid and avoids the risk of electrocuting utility personnel who are working to repair the grid

2. Grid-interactive :

This system works in conjunction with either a battery backup or diesel generator to support the load even during a power failure.

3. Off-grid: This system does not work with the grid and is

designed to work only with a battery backup or diesel generator in off-grid applications.

The difference between the systems lies in the kind of inverter used, and the inclusion of batteries.

As various vendors use different terminology for these systems.

TURN YOUR ROOFTOP INTO A POWERPLANT Energy is the important ingredient for present

industrial, commercial operations, education institutes. Invariably we ignore the energy cost in our costing.

The growing prices for grid electricity and diesel fuel to power diesel generators are a major concern for companies in India.

Solar PV rooftop systems for captive consumption can be integrated with the existing electricity infrastructure to offset a major part of your energy needs.

The Net metering policy guidelines introduced by many of the state is encouraging all category consumers to think on the Solar PV rooftop power generation.

Another encouraging factor is Accelerated depreciation 80% is available under the Income tax act for Solar power generation and investments in India.

This can provide significant savings to a solar plant developer who is a taxable assess and has sufficient profits against which the depreciation can be charged.

The recent Karnataka Rooftop policy has proposed a wonderful net metering tariff to encourage installations from 1 KW to 1000 KW of solar Photovoltaic.

The tariff for the net metered export is Rs 9.53 for non subsidized installations and Rs 7.20 for the subsidized installation.

Component cost of Grid connected rooftop PV systems A rooftop solar PV system costs approximately Rs. 1,00,000

per kWp (kilowatt peak) including installation charges but without batteries and without considering incentives . The cost breakup for a 1 kWp system is given below:

Case study : In KarnatakaConsidering the 10 KW contract demand for the existing operation.Running the operations for 8 hrs. The Annual consumption is appx: 23920 Units(considering 300 sunny days)

Solar

Non Solar

TECHNO ECONOMIC – SITE REPORT/ QUESTIONNAIRE- ROOF TOP PV SOLAR PROJECT

 NAME OF PERSON AUTHORISED PERSONNEL : DATE : NAME OF THE CLIENT : COMMUNICATION ADDRESS OF THE CLIENT : [with Contact Phone or Mobile Number] CLIENT SITE ADDRESS :

 

LATITUDE & LONGITUDE OF THE SITE :

SYSTEM REQUIRED BY CLIENT IS :

Capital Subsidiary - Individual [up to 1 kWp].

Capital Subsidiary – Commercial [up to 100 kWp].

Capital Subsidiary Third party sale.

Third Party Sale [REC]/ Captive Project

State / National Scheme

SOLAR SYSTEM POSITION : Ground Mounted

Roof Top

TYPE OF BUILDING : RESIDENTIAL COMMERCIAL SCHOOLS OR COLLEGES INDUSTRIES IT PARKS OR HOSPITALS

TYPE OF ROOF : RCC FLAT METAL ROOF ASBESTOS ROOF TILED ROOF [Mention Angle if you know Roof Tilted Angle ----------]

GENERAL DETAILSAre the Drawings for Land / Roof top Available : YES NOIf yes, have the Drawings be collected : Total Energy Consumption per Month : ------------ kWh

Monthly Electricity Consumption from EB : ------------ kWh

Total Running Load for DG with No.of.Hours : ------------ kWh

Total Disel Consumption per day : ------------ Litres

Total Free Area available for system installation : ------------- Sq.Mtr

 If on roof top total duration for lease agreement

In case of a lease property : ------------- Years

Is Plant being set up to fulfill RPO Obligation : YES NO

TYPE OF EXISTING AC CONNECTION : Single Phase 230V [Phase + Neutral]

Three Phase 415V [RYB+ Neutral]

LOAD DETAILS[OFF-GRID RESIDENTIAL CLIENTS]

S.No

LOAD DESCRIPTION WATTAGE

QUANTITY

TOTAL

                                                               

BATTERY BACKUP REQUIRED:

No.of.hours / Day: 2 Hours 3 Hours 4 Hours 5 Hours 6 Hours.

No.of.Days Required: One Day Two Day Three Day Four Day.

Photos of the Roof are taken YES NO

LOAD CHART: [ON-GRID & GRID-TIED SYSTEM CLIENTS]

S.No LOAD DESCRIPTION KILO-WATT QUANTITY TOTAL

01 Lighting Loads      

02 Inductive Loads      

03 Other Loads      

EXISTING SYSTEM AVAILABLITY

S.No LOAD DESCRIPTION CAPACITY VOLTAGE LEVELS

QUANTITY

01 Transformer      

         

02 Diesel Generator      

         

         

EXISTING SYSTEM AVAILABLITY:AC SYSTEM VOLTAGE [in kV]

3 Phase + Neutral [3ø 415V 50 Hz] 3 Phase 11kV

3 Phase 22kV

3 Phase 33kV

SOLAR SYSTEM SHOULD SYNCHRONIZED WITH EXISTING MV PANEL: YES NO

UTILITY SCALE GRID CONNECTED PV PROJECTS

LAND AREA IN ACRE’S :

SYSTEM CAPACITY [CLIENT WOULD LIKE TO PROVIDE] :

TRANSMISSION VOLTAGE GRID AVAILABLE NEAR PLANT :

DISTANCE B/W POWER EVACUATION SUBSTATION &

SITE :

ANY OBSTACLES IN THE SITE :

Signature with Date Signature with Date

[M/s. KNK Renewables] CLIENT

Er. P.Kumar - VP – Solar.

Prof. Narasimha Kishore Koka - CEO

Thank you and time to Brain storm,

“Be the change that you wish to see in the World”

-Mahatma Gandhi

Prof. Narasimha Kishore Koka,CEO

Er.Swaminathan, M.Tech, Project Engineer

Er.Ms.Mahira Banu,B.E,Project Engineer

Knk Renewables 

Knk Bio-tech.Inc

Poly Engineers & Consultants

Lamda Power Geenco Private Ltd. Bangalore

Cell: +91-9008850033, +91-9611910778

profkoka@gmail.com

www.knkrenewables.in