Universal Sustainable Energy

Daniel SotoENSP 201 Environmental Forum

10 Oct 2013

• 1.3 Billion people lack access to electricity (19% of the world)

• 2.7 Billion people use biomass fuels (39% of the world)

• People don’t want electricity or energy

• People want to see at night

• People want to cook

• People want to communicate

Lighting

Disadvantages

• Fire hazard

• Poor quality light

• Releases black carbon (soot)

Solar Lanterns

Cooking

Disadvantages

• Fuelwood consumption

• Respiratory problems

• Disproportionately affects women and children

Deaths from cooking smoke

ENERGY�FOR�ALL–�Financing�access�for�the�poor�

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As� well� as� the� economic� development� benefits,� the� Energy� for� All� Case,� if� realised,� would� have� a�

significant� impact�on�the�health�of�those�currently�cooking�with�biomass�as�fuel� in�basic,� inefficient�and�

highlyͲpolluting�traditional�stoves.�Based�on�World�Health�Organization�(WHO)�projections,�linked�to�our�

projections�of� the� traditional�use�of�biomass� in� cooking,25� the�number�of�people�who�die�prematurely�

each�year�from�the� indoor�use�of�biomass�could�be�expected�to� increase�to�over�1.5�million� in�the�New�

Policies�Scenario� in�2030.�The�adoption�of�clean�cooking�facilities� is�expected�to�prevent�the�majority�of�

deaths�attributable� to� indoor�air�pollution.26�The�number�of�premature�deaths�per�year�attributable� to�

indoor� air� pollution� is� higher� than� what� the� WHO� projects� for� deaths� from� malaria� and� HIV/AIDS�

combined� in� 2030� (Figure�10).� In� addition� to� avoiding� exposure� to� smoke� inhalation,�modern� energy�

services�can�help�improve�health�in�other�ways,�such�as�refrigeration�(improving�food�quality�and�storing�

medicines)�and�modern�forms�of�communication�(supporting�health�education,�training�and�awareness).27�

Figure�10:�� Premature�annual�deaths� from�household�air�pollution�and� selected�diseases� in� the�New�

Policies�Scenario,�2008�and�2030� �

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Note:�2008�is�the�latest�available�data�in�WHO�database.�

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���������������������������������������������������������������������������������25� Estimates� for� premature� deaths� are� based� on� WEOͲ2010� projections� for� biomass� use� and� on� Mathers� and�Loncar�(2006);�WHO�(2008);�Smith�et�al.,�(2004);�and�WHO�(2004).�26�Evidence�of�fewer�child�deaths�from�Acute�Lower�Respiratory� Infection�can�be�expected�soon�after�reductions� in�solid� fuel�air�pollution.�Evidence�of�averted�deaths� from�chronic�obstructive�pulmonary�disease�would�be�observed�over� a� period� of� up� to� 30�years� after� adoption� of� clean� cookstoves,� due� to� the� long� and� variable� timeͲscales�associated�with�the�disease.�27� See�WEOͲ2006� and�WEOͲ2010� for� a� detailed� discussion� of� the� harmful� effects� of� current� cooking� fuels� and�technologies� on� health,� the� environment� and� gender� equality;� and� for� a� broader� discussion� on� the� link� between�energy�and�the�Millennium�Developing�Goals�(IEA,�2006�and�IEA,�2010).�

Efficient Cookstoves

Communications

Disadvantages

• People travel miles to pay to have their cellphone charged

• This cost both time and money

Solar Chargers

Solutions Exist

One million connected

Reaching Billions

• How do we bring better, cleaner energy to the remaining billions?

• What happens when billions of people have access to energy?

• To reach billions, we need

• Technology

• Finance

• Humans

Fenix

• Teaming up with cell phone companies to get solar power into villages

Facebook

• Announced plan to lower the cost of internet access on mobile phones

• Wants to connect the unconnected

• Uses the internet to allow investment in solar projects in the developing world

Energy Transitions

• What happens when we go from one energy system to a new one?

• Kerosene to solar lanterns?

• What will come after solar lanterns?

First Encounter with Rural Electrification

• Comunidad San Jose de Rio Coca

• Cell phone service but no electricity

• Only access by boat

River Turbine

Lessons from Ecuador

• How do we make these solutions robust technically and economically?

• How do we integrate best engineering practices with unique needs of rural populations?

Postdoctoral Work

• Solar photovoltaic micro-grid project

• Used cell phones for payment

Battery

MetersSolar Panel

Individual Home

MetersCommunications

Research Questions

• How do people use electricity?

• What value to people place on electricity?

• What is the right sized system?

Energy Use

Household with only lightsHousehold with lights and

television

My Interests

• Enabling universal energy access

• Using energy-efficiency to lower the cost of electricity installation

• Quantifying human behavior and electricity consumption

My projects

• Improving microgrids in Haiti

• Lowering cost of refrigeration

• Matching batteries and panels to weather and people

Lowering Meter Cost

• Existing meters are very expensive

• In collaboration with UC Berkeley, developed low cost AC meter

• Company now using in pilot sites

Rosa, IEEE GHTC, 2012

Refrigeration

• Can we make refrigeration more efficient and less expensive?

• To reach billions with sustainable energy we need

• Technology

• Finance

• Humans

Thank you

Daniel SotoENSP, Energy Management and Design

sotod@sonoma.edu