Energy efficiency and sustainability

Safaricom perspective

Who are we?

•A Kenyan firm with a majority Kenyan shareholding

•Provider of converged communication solutions – voice, data, SMS,

telepresence, cloud computing

•Financial inclusion

•Public Sector Support

•Driven to innovate for social development

•Driven to provide solutions for Kenyans in all realms of their lives

•Transforming lives

Energy efficiency

Why it is important to Safaricom

Reduce NOPEX.

Optimize CAPEX

Reduce Carbon Foot Print

Reduce noise and other

pollutions

Comply with regulations

Corporate responsibility

Energy security

Parts(Aircon & Genset),

3%

PM Costs, 14%

Generator Overhaul, 2%

Generator Service, 2%

Diesel(24/7 sites & Offgrid),

10%

Diesel(KPLC sites), 29%

KPLC Electricity,

33%

Security, 7%

Feb 2013 Cost Spread

10.0%

83.8%

2.8%

2.1%

0.1% 0.6%

0.2%

0.5%

Sites Power Status

KPLC No Genset

KPLC Sites

24/7 GENSET

Solar Wind

Power Cubes

Enhanced

Mini Enhancer

Diet sites

Our current energy situation

Electricity currently the highest spend on NOPEX at 43% with diesel contributing to 31%Target is to reduce diesel cost on the KPLC sites and the 24/7 genset sites 82% of the sites on KPLC, 3% of 24/7 Genset, 4% on Hybrid power and 11% sites without gensets

Our Carbon footprint…

• In 2012, we calculated our carbon footprint for the first time to help

us understand our emission sources and how to reduce.

• Our total carbon footprint is 70,257 tCO2e

• Main sources of emissions– Fuel used in generators, vehicles,

refrigerant gases, electricity from the grid

• Uncertainty attached to reported figures – 14%

FUEL COST TRENDS IN KENYA (ERC)

0

20

40

60

80

100

120

140

Oct

-10

No

v-1

0

De

c-1

0

Jan

-11

Feb

-11

Mar

-11

Ap

r-1

1

May

-11

Jun

-11

Jul-

11

Au

g-1

1

Sep

-11

Oct

-11

No

v-1

1

De

c-1

1

Jan

-12

Feb

-12

Mar

-12

Ap

r-1

2

May

-12

Jun

-12

Co

st

Month

ERC Monthly Diesel Prices (Oct 2010 to June 2012)

Fuel Prices

Linear (Fuel Prices)

Generally the fuel prices have been raising significantly impacting on our bottom-line

Energy sustainability roadmap

Intensive staff training

In-depth analyses of our energy baseline

Thorough study of available solutions

Preparation of target infrastructure for energy efficiency,

development of articulate specifications

receiving proposals, technical analyses and commercial

appraisals.

Budgeting, project planning implementation and monitoring

LED lighting in all major facilities with automated control

Our current energy projects Aggressive grid connection

Solar installation

LV APS

The power cube

Free cooling

Network Modernization program

Deep cycle batteries, Durathon batteries, High temperature

batteries

Smart controllers

7.77.2

6.0

4.1

2.5

3.93.5

4.2

2.7

1.61.1 1.0

0.60.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

Avg

. Ge

n H

ou

rsLV APS(with Battery Cycling) Perfomance

Average Gen Hours Linear (Average Gen Hours )

Low Voltage APS performance

Consistent decline in generator hours realized from the sites which have been installed.Installed 100 such units and planning for mass rollout

Grid power connection

Partnering with utility companies to bring grid power to rural areas

Low TCO for short distances

THE POWER CUBE-REDUCE SITE ENERGY INFRASTRUCTURE TO ONE SINGLE ENERGY EFFICIENT UNIT

Diesel Generators

Rectifier

Batteries

Telecom

equipment

Cooling

+ efficient cooling in case of Indoor

site

Power Cube

POWER CUBE WITH SOLAR-REDUCE NEED FOR REFUELING IN

REMOTE SITES

TCO-Power cube

Performance curve for Mara Governors

Average generator run per day dropped from 24hrs/day hours to 7.5 hours. 93 such units now installed across the network . 61 units expected to be installed by 30th April 2013.

Free cooling allows circulation of outside cooler air into the BTS reducing use of active cooling

TCO-Free cooling

Free cooling boxes installation highlight

Performance curve Ewaso Ngiro

Installation of free cooling box commissioned on this site on 17th February, 2012.

The peak power for the site has reduced by 25%.

103 such units now installed across the network.

405 units targeted to be commissioned by 30th April, 2013.

Green Base Station

Kalongot_Site_3139 Takabba_1278

SAFARICOM STAND ALONE SOLAR SITEA AT GUBA

Guba

Use of smart controllers to optimise on energy infrastructure

Staggering the start up load with smart controller reduces genset size requirement by up to 50% with the resultant genset efficiency

Genset requirements – power system soft start

Required genset size

With uncontrolled inrush

≈ 16KVAAC current

time

Genset start

Air condition

Inrush current Air condition

Required genset size with

inrush control≈ 11KVA

Required genset size

With uncontrolled inrush

≈ 16KVA

Original total current

Power system soft start and

battery recharge mode

Start up delaySequencial start

Reduction of total inrush current by:

Power System startup delay

Sequential start up of rectifiers

Total current

Reliable, Green Cell Sites

Safaricom innovates with advanced energy storage technology from GE

Result … less downtime + reduced carbon footprint!

Pre-Durathon Durathon Roll-Out Durathon Powered

Min

ute

s o

f Site

Do

wn

tim

e

75+%

Reduction

Access site Target architecture-PowerA

CC

ESS

SITE

S

Stable grid (less than 2 hours grid outage per day)

Unstable grid (more than 2 hours grid outage per day)

No Grid, AccessibleNo Grid, very remote, security concerns

All site outdoor with power MINI- racks

HIGH EFFICIENCY INVERTERS

POWER CONFIGURATION• LV APS, • Smart controller, • 2V monoblock Deep cycle batteries, • remote site monitoring. • All sites to be outdoor.

Power cube with remote monitoring

16 KVA GeneratorNO GENERATOR

Community Power Projects - Objectives

• Poor local community, cannot afford

cost of power.

• Request from the community.

•Request from donors engaged with the

community in other development projects.

• Rapid expansion of Mobile Money MPESA

services to the rural areas.

• Optimum network utilization and

improved Rate of Return (no sleeping cells)

for lack of subscriber activity.

Thank You