MINI/MICRO GRID FOR RURAL AREASPOLICIES, FRAMEWORK, ISSUES & CHALLENGES

Ministry of New and Renewable EnergyGovernment of India21st July 2016

As per census 2011

Percentage Share of Households Having Electricity as Main Source of Lighting

30.00 and Below

30.01-50.00

50.01-70.00

70.01-80.00

90.01 and above

Electricity Access

Through Grid

• Strengthening of Distribution Network– Deen Dayal Upadhyaya Gram Jyoti Yojana (DDUGJY)

• Grid Connected Renewable Power

Through Off Grid (Renewable Energy)

• Decentralized Distributed Generation (under DDUGJY)• Remote Village Electrification Programme• Off-Grid / Decentralized Solar PV Programme• Biomass Gasifier based Distributed / Off-grid power programme for

Rural Areas.• Water Mills and Micro Hydel Projects• Programme on Small Wind Energy and Hybrid Systems

Other Initiative 24x7 Power For All (PFA)

• 24 x 7 power supply to– all households/homes,– industrial & commercial consumers – adequate supply of power to Agricultural consumers

• States Taken upArunachal Pradesh, Assam, Bihar, Goa, Jharkhand,

Meghalaya, Telangana, Uttarakhand, and Uttar Pradesh• Ministry will support the RE component of 24X7 PFA

Un-electrified Census villages Status

18500 Un-electrified villages

3200 to be covered through Off grid

Renewable power .

•enerationO

ptio

ns fo

r Rur

al E

lect

rific

atio

ns• Extension of grid line• Diesel genset• Kerosene lamps

•Individual Solar lighting systems•Micro/ Mini SPV grid•Biomass gasifier grid•Biogas for electricity generation

•Wind battery chargers system•Solar Wind Hybrid system•Micro/ Mini hydro system

Off Grid / Decentralized Solar PV Programme

Need• lighting, electricity and Water Pumping

Target Category• Individuals• Institutions• Villages/ communities• Commercial and industrial establishments

Replacement • kerosene, diesel, electricity and other fuels wherever

possible

Special thrust on Rural Areas

Off Grid Off-Grid / Decentralized Solar PV Programme

CFA Pattern

• 30% capital subsidy to end-users

• 90% for special category States for defined category.

• 40% through banks coupled with Loan

Implementing Agencies

• State Nodal Agencies• NABARD and other banks• Channel Partners• Other Government

Institutions

WHY MINI GRID?

• Government can meet its objective of electricity to all

Stake Holder BenefitGovernment Solution to provide Electricity Access to

all

Service provider A profitable service model and Government financial support

Community Energy access , Income generating activities, employment, Safety during night

Women &Children

Clean and bright source of light for study and cooking

Telecom Tower and other Anchor load

Diesel Saving and no dependency on Diesel

Benefits of Micro/Mini-Grid in a Village

• Just one central system to install, maintain and repair.

• Maintained by a few trained persons.• More efficient and easier to expand a micro/ mini-grid

system in future.• Profitable for running productive applications like

pump, floor mill, computers so that villagers can earn income.

Central Financial Assistance (CFA) (Rs/Wp) for minigrids

Rs per Wp

Sno.

SPV System Capacity General Category States

NE States, A&N, Lakshadweep Islands

Special Category States

Channel Partners

1. Micro Grid

Up to 10 kWp

Rs. 105 Rs. 115 Rs. 105 Rs. 100

2. Mini Grid

>10 to 500 kWp

Rs. 90 Rs. 99 Rs. 90 Rs. 85

1. Micro/ Mini Grid Solar PV System shall consist of the following: Solar PV Panel of specified capacity with suitable mounting structure Power Conditioning Unit (PCU) with suitable capacity of Charge Controller and

Inverter as required Battery Bank (Minimum Capacity @9.6 VAH / Wp) with suitable Battery Racks Junction Boxes, D.C.D.B. / A.C. D. B. and Cables as per site requirement Poles, ACSR conductor/ armored cable as per site requirement Luminaires (Minimum two numbers per house hold) Individual Meters (if required) Lightening Arrestor and Earthing as required Control Room/ Battery Room Five years warranty

2. All components and sub systems of the plant should conform to the “Minimal Technical Requirements / Standards” specified by MNRE, for SPV systems / plants.3. Part of the energy generated by the PV System may be utilized to power some

commercial / other loads; however, minimum 30 % of Total PV Capacity should be utilized for domestic load.

Conditions for availing CFA

Some Examples Of MINI/MICRO Grid225 Wp SPV Micro Grid SPV system in SUNDARBANS

• Solar PV roof top AC mini-grid• No. Of Households 7- 10• Diameter ~100 metres• No. Of light points per house - 3 LED bulbs of

2W each• No. Of cell phone charging points per house - 1 • No. Of hours of lighting per day - 5 • Autonomy - 2 Days

Solar PV roof top AC micro-grid of 500-Wp

• Diameter ~ 200 metres• No. of light points per shop 2 LED bulbs of 5W

each/one 10 W LED is used depending on shop profile

• Battery Capacity - 200AH 12 V• Inverter Capacity - 600 VA• No. Of hours of lighting per day - 4.5 • Autonomy - 1.2 Days

200METERS

Tea ShopCloth Store

Musical StoreJuice StoreGroceryBarber ShopCloth Store

Cloth Store

Grocery

Tea Shop

Hardware Store

Tailor

Meat store

Fish store

Casual Hawkers

Battery and Inverter

Fish Store

Meat Store

Tailor

Swear Meat Store

Casual Hawkers

Casual Hawkers

Some of the reported advantages of the micro/ mini grid SPV System

Clean and reliable lighting at affordable costs

Increases productive time, positive health impacts and education benefits for the children.

The household can select the number of light points based on their present paying capacity and their lighting requirements.

It is an AC system can be upgraded easily as per the need and payment capacity of the people.

Savings accrued from non-usage of kerosene for domestic lighting is used to repay the bank loan

Some Photographs of recent Micro grid installed

Components and Financial Requirement for a Mini Grid serving

100 HouseholdsOne Example

A typical Centralised SPV Power plant for 100 house holds in a village

S. NO. DESCRIPTION QTY.

1 SOLAR PHOTOVOLTAIC (SPV) POWER PLANT 60 kWp

2 BATTERY BANK 240 VOLT 1000 Ahr (120 nos. of 2 Volt 1000 Ahr VRLA Cells each) one

3 3 NOS. OF 5 WATT Each LIGHT EMITTING DIODE (LED) LAMP FOR EACH HOME 100 nos.

4 ONE FAN OF 20 WATT FOR EACH HOME 100 nos.

5 A COLOUR TELEVISION OF 20 WATT 100 nos.

6 A MOBILE CHARGER 100 nos.

7 SOLAR STREET LIGHTING SYSTEM 20 nos.

8 A COMPUTER WITH PRINTER AND 8 NOS. OF LIGHTS OF 12 WATTS EACH IN SCHOOL 1 no.

9 ONE VACCINE REFRIGERATOR (500WHRS./DAY) AND 4 NOS. OF LIGHT POINTS, EACH 12

WATTS

1 no.

10 COMMUNITY HALL 4 FANS OF 20 WATT EACH AND EIGHT LIGHTS OF 5 WATT EACH 1 no.

11 FOR CHURCH/ MOSQUE/ TEMPLE/ PLACE OF WORSHIP ONE PUBLIC ADDRESS SYSTEM

(200 WHRS/DAY), 4 NOS. OF LED LIGHT POINTS of EACH 5 WATTS AND 4 NOS. OF FANS

OF 20 WATT EACH

1 no.

12 SPV PUMING SYSTEM OF 3000 WATT 1 no.

Cost of a 100 house hold centrliased SPV Power Plant Sl.No.

Description of the System Unit Price(Rs.)

Quantity(Nos.)

Total Price(Rs.)

1. 60 kWp Solar Photovoltaic Power Plant 4,000,000/- 01 4,000,000.00

2. Battery Bank 240 Volt 1000 Ahr 4,000,000/- 20 4,000,000.00

3. Charge Controller, Inverter and Power Conditioning Unit 2,000,000/- 01 2,000,000.00

4. Structure, DC and AC Cables, Junction Boxes, nuts, bolts, lightning arrestor, etc

2,000,000/- 01 2,000,000.00

5. 5 Watt LED Lights for homes and 12 Watt LED lights for Street lights and schools

200/- 400 80,000.00

6. 25 Watt Fans 1,000/- 120 120,000.00

7. 20 Watt Colour Television sets 12,000/- 100 1,200,000.00

8. 20 Watt Refrigerator 10,000 01 10,000.00

9. Spares 500,000/- 1 Set 500,000.00

10. Packing, Forwarding, Freight, Insurance 1,000,000/- L.S. 1,000,000.00

11. Site Survey, 2,00,000/- L.S. 200,000.00

12. Training, Installation & Commissioning 5,00,000/- L.S. 1,000,000.00

13 Civil works, erection commissioning etc L.S. 2,000,000.00

Total 18,110,000.00

ISSUES AND CHALLENGES• Paying Capacity• Free Power through Grid.• No guidelines for co-existing with the grid, and

exit options.• No clear guidelines grid integration/compatibility.• Tariff/ Right of Way

DRAFT FRAMEWORK FOR PREPARING ROLES FOR MINI/MICRO GRIDS

A Committee constituted to draft framework with Shakti Foundation, CLEAN & Centre of Science & Environments as Members.

Draft was prepared focusing the following

* Alternate private mini grid models for providing affordable services(while covering costs of investors).

*Streamlining project site identification and project development.

* Operational frameworks for co-existing with the grid, and exit options.

*Technical issues and framework for grid integration/compatibility.

* Central financial assistance and other incentives.

* Role of various institutions such as SNA, CEA, CERC etc. to support the mini grid.

Progress under Policy

• Draft of National Policy listed on 1st June 2016

• Stakeholder feedback by 20th June 2016

• 33 individuals/organizations both national and international provided comments

• Public consultation meeting on 18th July 2016

Major Comments received on• Scope of Policy• Mini grid nomenclature• System Configuration• Tariff and Revenues• Role of SNA and Panchayat• Performance and Tech Standards• Exit Options• Subsidy• Others

Draft is now under Finalization stage

Thanks