The Teal Energy℠ Deal

The fastest and least expensive way to reduce global carbon emissions with growing energy demand
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Key Takeaways

  • Imperative to reduce global CO2 emissions
  • Energy demand growing through electrification
  • Source of energy supply shifting to low carbon fossil fuels and renewables
  • Transition to cleaner energy can happen quickly and economically
  • U.S. exporting low-cost energy to the rest of the world

To reduce carbon emissions across the globe, a transition to
cleaner energy must happen.

We think this transition will be driven by two key themes: Growing global energy
demand driven by electrification; and natural gas and renewables displacing coal
thereby reducing carbon emissions.

This is Tortoise’s view on the future of energy, what we are calling “The Teal Energy

What is the Teal Energy Deal?

Global carbon emissions are increasing

As illustrated below, the power sector, which is used to generate electricity, represents the single largest source of carbon emissions in the world. To efficiently make the biggest impact, the focus should be on shifting to cleaner energy sources for power generation.

Global COemissions

Source: IEA, Switch. Data represents estimated 2014 global anthropogenic CO2 emissions

Not all fossil fuels are created equal

Within power generation, some fossil fuels emit more carbon than others. The chart below ranks fossil fuels by carbon emissions, with wood on the far left, followed by coal, then diesel and gasoline, with propane and natural gas on the far right. Natural gas emits approximately half the amount carbon coal emits. It is important not to lose sight of the end goal and paint all fossil fuels with a broad brush.

Carbon emissions from power

Source: EIA, EPD

Energy demand is increasing

Population growth

Energy is an essential asset, therefore global energy demand growth has been consistent and highly correlated with population growth. Typically, energy demand is comprised of power generation, transportation, residential, commercial and industrial sectors. The chart below shows world population and global energy demand over the past 36 years. Population has consistently grown and accordingly, energy demand has grown 35 of the past 36 years. Global population is expected to approach 10 billion by 2050 and then grow to approximately 11 billion by 2100.

World population growth

Source: Bloomberg, BP Statistical Review of World Energy 2019


Approximately 75% of global energy demand growth over the next two decades is expected to come from power generation. Electricity demand is expected to double between 2016 and 2050. We illustrate this point to highlight the growing importance of electricity, which is the end product of power generation.

Total energy consumption - Indexed to 100

Source: McKinsey. This chart contains projections, there is no guarantee these projections will be met

Growth of electric vehicles

Currently, electric vehicles (EVs) are a very small percentage of total vehicles, but their share is expected to grow significantly through 2040. The growth of EVs will be a key driver of electricity demand growth. It is important to note that internal combustion engine (ICE) vehicles will also remain relevant for decades to come.

Electric vehicles vs. internal combustion engine vehicles

Source: BloombergNEF

Why are carbon emissions increasing?

Growth of emerging market countries

Global power demand growth is outpacing decarbonization efforts due to continued growth in emerging market coal usage. Fuel mix changes are no longer offsetting the growth in power demand and emissions are rising.

Power demand growth, represented by the blue portion of the bars in the chart below, has been positive almost every year since 1998. The gray portion of the bars represents offsets that, in many recent cases, were due to a shift away from coal. The green line illustrates CO2 emissions, which have been increasing in recent years.

Carbon emissions by power source

Source: BP Statistical Review of World Energy 2019

What is causing this trend? Carbon emissions from China and India have grown while U.S. emissions have declined due to switching from coal to natural gas and renewables. Sharp increases in emissions from China and India are overpowering the U.S.’s reductions.

As of 6/30/2019. Source: BP Statistical Review of World Energy 2019

How do we decrease global carbon emissions?

Natural gas and renewables: The path forward

Sourcing of energy supply is driven by cost, availability and increasingly by social impacts. Over the long term, supply builds to match demand. As the global energy landscape has evolved, there has been a shift in the source of supply from coal to natural gas and more recently to renewables. These changes take time to develop. As technology advances, some incremental demand may be met by new sources of supply, such as renewables, but in the near term, shifting from coal to natural gas can be a more efficient and effective solution. As such, global demand for natural gas in power generation is expected to increase by approximately 40% from 2020-2040.

Global energy consumption trends

Source: BP Energy Outlook 2019. *Renewables include hydroelectric. The projections are based on industry estimates and are no guarantee of future outcomes. Tonnes of oil equivalent (toe)

The U.S. success story: Natural gas making the largest impact

At Tortoise, we believe the future of energy is both natural gas and renewables, resulting in reduced carbon emissions globally. However, the quickest and most efficient way to reduce CO2 is by replacing coal power generation with natural gas. In the U.S., the substitution of coal for natural gas and renewables has led to a 28% decline in CO2 emissions from power generation since 2005, as coal consumed for power generation in the U.S. has declined from approximately 50% to approximately 30% currently. As illustrated in the chart below, the shift to natural gas has had the largest impact.

Two factors are driving the reduction of carbon emissions due to electricity generation in the U.S.

*2006 - 2017. Source: EIA September 2018: U.S. Energy-Related Carbon Dioxide Emissions, 2017

U.S. carbon emission reductions over the last 10 years

The effects of energy sources on carbon emissions is reflected in the chart below. Germany, known for rigorous growth and adoption of renewable energy sources, made some progress in carbon emission reductions, but not nearly as much as the U.S. With the combination of both natural gas and renewables, the U.S. reduced carbon emissions much more significantly. China and India have increased CO2 emissions, primarily due to the high usage of coal for energy.

10-Year change in COemissions by top 10 emitters

Source: BNEF 2019 New Energy Outlook

Continued cost reduction should drive renewables growth

Renewables are gaining traction as technology advancements are dramatically lowering the cost of sustainable energy sources. This should drive continued adoption of renewables, without dependence on subsidies.

Dramatic reductions in levelized cost of energy lowering need for subsidies to drive adoption

Source: BNEF 2019 New Energy Outlook

China and India: At a critical crossroad

What could the impact be if China and India put themselves on the same path as the U.S.? The chart on the left shows the potential for growth in the world’s middle class population, notably in Asia. On the right, the blue section shows what emissions could look like for China and India if they were to reduce emissions by approximately 1% per year, which the U.S. has done since 2005. The results could be staggering. While the world’s middle class population grows, the energy transition could propel a lowering of emissions – by switching away from coal to natural gas and renewables.

Source: Brookings Institute, BP, Federal Reserve Bank of St. Louis, Tortoise. These charts contains projections, there is no guarantee these projections will be met.

How the U.S. can be part of the global solution

The U.S. has become a major exporter of low-cost energy to the rest of the world. As emerging countries evolve and seek to provide a better quality of life for their citizens with improved access to electricity and transportation, the United States can provide lower carbon fossil fuels than coal, significantly impacting global carbon emissions.

U.S. exporting low cost energy to the rest of the world

Source: WoodMac, IHS. These charts contains projections, there is no guarantee these projections will be met.

U.S. exports: reducing poverty and emissions

Reducing poverty requires access to energy, yet increasing energy use leads to climate concerns because of increased emissions. How do we solve the need for more energy, yet with less carbon? The answer is to transition to natural gas and renewables: The Teal Energy Deal. This energy transition aims to reduce poverty through affordable clean energy, utilizing industry and infrastructure, while taking into account climate action.

To address economic poverty, one must address energy poverty and future global energy needs. There are approximately one billion people globally without access to electricity, while 53 countries, representing 1.6 billion people or 21% of the world’s population, consume less electricity on average annually per capita than a refrigerator. In fact, the UN states that more than 80% of the world’s population lives in countries that consume less energy than deemed necessary for proper human development and well-being.

Average annual electricity consumption per capita

As of 6/30/19. Source: CIA, IEA Energy Access Outlook 2017, Whirlpool.

As emerging countries begin to prosper, more energy is required for electricity and other uses. More than 100 million people gained access to electricity over the three-year period ending in 2015. More than half of that number utilized coal as a primary fuel source.

Coal remains the dominant energy fuel source worldwide, offsetting emission and environmental benefits gained from the adoption of renewables in some countries. Carbon emissions from emerging market countries have skyrocketed, while as highlighted earlier, U.S. emissions have begun to decline due to a greater mix of natural gas and increased renewable penetration. The difference is stark. The U.S. has had declining emissions while China and India have seen dramatic increases.

Annual number of people gaining electricity access by fuel type

Source: IEA Energy Access Outlook 2017

The Teal Energy Deal aligns with the United Nations' sustainable development goals


The global energy sector is in transition. Led by electrification, global energy demand is forecast to continue to increase annually over the next several decades. The transition is occurring in the global energy supply mix needed to fuel the growing demand. Natural gas and renewables are replacing coal and this trend is critical globally to lower carbon dioxide emissions. All of this provides a tremendous opportunity for investment as we see at least $15 trillion needed in global energy infrastructure. As the world transitions to a future with greater power demand, investors have the ability to capitalize on this future energy story. At Tortoise, we believe The Teal Energy Deal is the fastest, least expensive and most realistic way to reduce global carbon emissions.

This commentary contains certain statements that may include “forward-looking statements.” All statements, other than statements of historical fact, included herein are “forward-looking statements.” Although Tortoise believes that the expectations reflected in these forward-looking statements are reasonable, they do involve assumptions, risks and uncertainties, and these expectations may prove to be incorrect, Actual events could differ materially from those anticipated in these forward-looking statements as a result of a variety of factors. You should not place undue reliance on these forward looking statements, which speak only as of the date of this publication. Tortoise does not assume a duty to update these forward-looking statements. The views and opinions in this commentary are as of the date of publication and are subject to change. This material should not be relied upon as investment or tax advice and is not intended to predict or depict performance of any investment. This publication is provided for information only and shall not constitute an offer to sell or a solicitation of an offer to buy any securities.