Rajeev SharmaConvener, WG1IEC SyC LVDC

© The Energy Resource Institute

Energy is the is the golden thread that connects economic growth, increased social equity, and an environment that allows the world to thrive’

Ban Ki-moon, Former United Nations Secretary-General

Energy is opportunity. It transforms lives. Economies. And our planet.

People lacking access to electricity

Huge disparity in electricity consumption across the world

Ensure access to affordable, reliable and modern energy for all by 2030

Energy Access

• Access to energy is the ability to avail energy that is adequate, available when needed, reliable, of good quality, affordable, legal, convenient, healthy & safe, for all required energy services across household, productive and community uses

Attributes of the energy supply

1. Capacity

2. Duration/ Availability

3. Reliability

4. Quality

5. Affordability

6. Legality

7. Convenience

8. Health & Safety

Multi-Tier Framework – Tiers 2 and 3

9

SyC LVDC

WG1LVDC publications for

Electricity Access

CAGChair’s Advisory

Group

AhG2DC Data Centres and

Industrial Automation

AhG3LVDC Electrical

distribution draft roadmap proposal

AhG4Questionnaire data

analysis group

JWG9LVDC distribution

(Managed by TC 8)

WG2Use-cases for public LVDC distribution

WG3Parameters for protection and

safety in DC

SyC LVDC Open Forum (OF1)

SyC LVDC WG 1Development of LVDC Standards for Electricity Access

Constituted in May 2017

Scope:▪Federate specifications and standardization work on Electricity Access

▪Develop Systems Level publications for electricity access

▪Engage and Coordinate with TCs to embed Electricity Access provisions in

existing publications.

▪Engage electricity access practitioners to seek ground level experiences

and expectations (from SyC LVDC)

ELECTRICITY ACCESS REQUIREMENTS WITH SELV DC FOR TIER II AND TIER III OF ESMAP MULTI-TIER FRAMEWORK FOR HOUSEHOLD ELECTRICITY SUPPLY

Attribute Tier 2 Tier 3

Peak Capacity Minimum peak power deliveryof 50W

Minimum energy delivery of200Wh per day

Minimum peak power delivery of

200W Minimum energy delivery of

1000Wh per day

Availability(Duration)

Minimum 4 hours per day

Minimum 2 hours in the

evening

Minimum 8 hours per day

Minimum 3 hours in the

evening

Reliability No stated requirement No stated requirement

Quality IEC Standards on EMC shallbe applied

IEC Standards on EMC shall be applied

Affordability No stated requirement Cost of standard consumptionpackage of 365 kWh per year shouldbe less than 5 % of householdincome

Legality No stated requirement No stated requirement

Health and Safety No stated requirement No stated requirement

This draft Standard specifies

electrical systems that are

meant to satisfy all the

attributes associated with

electrical supply for energy

access outlined in Tier 2

(product kits up to 35 V DC)

and Tier 3 (48 V DC fixed

installations) of the ESMAP

Multi-Tier Framework for

Household Electricity Supply.

Electricity Access – Priority and Considerations

• Define a basic architecture for fast and

immediate access to electricity

• Safety, considering first time users of electricity

• Scalability – Energy Sharing, DC/AC Microgrids, AC Grid

• Standardise rules when AC Grid eventually gets connected

• Uptake of distributed renewables. Much bigger opportunity in the developingworld

Priority Considerations

First Time users with no prior exposure to

electricity and its potential for hazard to human

life

• Minimum requirement to power few lights, fans

and mobile chargers, sources and storage

• Leverage existing AC components,

interconnects, electrical interfaces that are locally

available as much as possible to reduce costs

• Distribution to be standardised for low losses.

• Provide a platform for funding renewable energy

projects

Architecture

• The system has distributed energy source(s) using a PV paneland/or battery for storage.

• The power conversion sub-system is designed such that thevoltage levels at each of the interfaces to it, the PV panel,storage and the delivery interfaces, are operated with thecorrect voltages

Architecture

16

Example of the

architecture of a

circuit of the DC

system that can

address the

requirements for

Tier 3 of the Multi-

Tier Framework

ELECTRICITY ACCESS REQUIREMENTS WITH SELV DC FOR TIER II AND TIER III OF ESMAP MULTI-TIER FRAMEWORK FOR HOUSE HOLD ELECTRICITY SUPPLY

Journey till date…

System level document on “Electricity

Access Requirements with SELV DC for Tier

II and Tier III of ESMAP Multi-Tier Framework

for House Hold Electricity Supply”

May, 2020

New work item proposal approved by IEC SyCLVDC

January 2020

IN NC submitted New work item proposal at IEC SyC LVDC in-line with decision of SMB

December 20, 2019

SMB approved the submission of the NP proposed by the IN NC

28 May 2020

Circulated to

the nominated

experts/

members of

WG

03 July 2020

Committee

Draft(CD)

circulated

Compilation of Comments on Committee Draft

Committee Draft for Vote

Result of voting on committee draft for vote (includes comments)

Final draft international standard

Report of voting on final draft international standard

FDIS

CDV

CC

RVC

RVD

IS International Standard

LVDC Installations inIndiaOver 45,000 installations in the States of Assam,Rajasthan, Manipur,

J&K andMeghalaya

Village SchoolwithLVDCSystem

CONTACTUS

THANKYOU

Bureau of Indian Standards

9 Bahadur Shah Zafar Marg,

New Delhi-110002,India

+91 9417804252

eetd@bis.gov. in

rajeev@bis.gov. in

www.bis.gov.in