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Cap and Trade for Traffic

Great article today on a study suggesting that traffic congestion is created by the marginal driver, and more interesting, from the marginal driver from specific and predictable locations.  Maybe 1% of commuters leaving from specific neighborhoods have a big increase on traffic congestion and commute time for everyone. The link to the study is here.

We dealt with this in the demand response market for energy.  With regulators 10-15 years ago creating free markets enabling companies to sell a reduction of energy demand to the power companies instead of increase generation.

We dealt with this in the carbon, Renewable Energy Credit, and Acid rain sphere by creating cap and trade style mechanisms enabling the rest of the market to pay some marginal actors just enough for them to drop out first.

There are bars that change the price of beer based on demand.

The stock market handles real time demand pricing every day.

Why not for traffic?  Hammer congestion and air pollution.  Create localized markets where the transit or roads authority, like Caltrans, TexDOT, or the local air district, instead of spending my tax dollars only on new roads, infrastructure, or regulations, used cellphone apps to pay a few dollars to commuters who would drop out of the critical commute paths at the right times.  Perhaps credits on your toll road account?  The more who apply, the less each make? Compliance tracked against your cellphone GPS?  A thousand ways to address the myriad technical issues with payments, tracking, compliance, verification, and additionality.

Small investment, massive social, environmental and economic benefits.

David Anthony’s Last Question – Can We Power the US Solely off of Solar?

By Tao Zheng, with David Anthony, an active cleantech venture capitalist, who passed away in April 2012.

 The sun is the champion of all energy sources, in terms of capacity and environmental impact. The sun provides earth with 120,000 terawatt (TW) energy, compared to technical potential energy capacity of single digit TWs from other renewable sources, such as wind, geothermal, biomass and hydroelectric. More energy from the sun hits the earth in one hour than all of the energy consumed on our planet in entire year. In the last blog, we estimated that the technical potential of electricity generation from rooftop photovoltaics (PV) can take over 1/3 of U.S. electricity consumption demand. The next question is: can we power the U.S. solely by solar energy, technically? The answer will rely on development of utility-scale solar farms and energy storage solutions.

Assuming the rest 2/3 of U.S. electricity demand can be fulfilled by utility-scale PV solar farms, we can estimate how much land required to install such solar farm systems. The total U.S. electricity demand in 2009 was 3,953 TWh with 1% annual growth projection in next 25 years. Two third of U.S. electricity demand is about 2,635 TWh. The PV power density is calculated with a weight-averaged module efficiency using market share for the three most prevalent PV technologies today: crystalline silicon, cadmium telluride, and CIGS. The resulting PV power density is 13.7 MW/million ft2, assuming an average module efficiency of 18.5% in 2015. If we assume 10 hours/day and 200 days/year with sunshine, the annual available sunshine time is 2,000 hours. The total land required for solar farms to generate 2,635 TWh, can be calculated as:

Total Land Required = Total Energy Generated / PV power density / Annual available sunshine time

                                 = 2,635,000/13.7/2000 = 96.2 ×109 ft2 = 8,937 km2 @ 100 × 100 km

Therefore, to generate energy equivalent to 2/3 of U.S. electricity demand, we need to install solar panels in a tract of land with size of 100 by 100 km, the area about 0.1% of U.S. land. Technically, to provide electricity for entire U.S. demand, we only need to cover PV-accessible residential and commercial rooftop with solar panels and install solar farms in desert area equivalent to 0.1% U.S land. In addition to rooftop and desert, there are many opportunities for installing PV on underused real estate, such as parking structure, airports, and freeway margins. PV can virtually eliminate carbon emissions from the electric power sector.

In comparison, Nathan Lewis, professor at Caltech, predicted a solar farm with land size of 400 by 400 km to generate 3 TW energy to power entire America. The represented area is about 1.7% of U.S. land size, comparable to the land devoted to the nation’s numbered highways. As shown in Figure 1, the red square represents the amount of land need for a solar farm to match the 3 TW of power demand in the U.S. Of the 3 TW energy, only 10% represents electricity demand, and the rest represents other energy needs, such as heating and automobile. Thus, Lewis’ calculation is consistent with our estimation: 10,000 km2 solar farms can generate enough electricity to fulfill 2/3 U.S. demand.

Figure 1. Solar Land Area Requirement for 3 TW Solar Energy Capacity to Power Entire U.S. Energy Demand. (Source: Prof. Nathan Lewis group at Caltech).

One of big challenges using solar to power U.S. grid is intermittency of sunlight. Solar energy is not available at night, and the variable output of solar generation causes voltage and frequency fluctuations on power network. Energy storage technology can smooth the output to meet electricity demand pattern. There are many grid energy storage technologies, from stationary battery to mechanical storage methods. Pumped hydro technology is clearly a better choice for solar energy storage, due to its high energy capacity, low cost, and public safety assurance.

For solar to have a dominant role in the electric power generation mix, in addition to power storage infrastructure, upgrading America’s transmission grid is required. In contrast to traditional electricity generation, solar power collections are distributed across numerous rooftops or centralized in utility-scale farms. Distributed solar requires grid operators to install smart grid technology to monitor power supply and demand and balance thousands of individual generators with central power plants. The current century-old transmission grid needs to be upgraded with high-voltage lines to carry electricity from remote solar farms to consumers. The American Recovery and Reinvestment Act (ARRA), signed into law by President Obama in 2009, has directed $40 billion to accelerate the grid infrastructure transformation.

The U.S. photovoltaic market has been growing quickly in recent years. In 2010, the U.S. installed 887 megawatts (MW) of grid-connected PV, representing 104% growth over the 435 MW installed in 2009. Current trends indicate that a large number of utility-scale PV power plants are in the south and southwest areas, such as in the sunny deserts of California, Nevada and Arizona. For example, the Copper Mountain Solar Facility in Boulder City, Nevada, is one of the U.S. largest solar PV plants with 48 MW capacity, as shown in Figure 2.

Figure 2. One of the U.S. Largest Solar Plants, the Copper Mountain Solar Project with 48 MW photovoltaic in Boulder City, Nevada.

Historically, solar PV deployment has been limited by economic factors, since solar energy is too expensive to compete with traditional fossil fuels, due to lack of economies of scale. However, the cheapest solar cells are now being produced for as little as 70¢ per watt. They are selling for about $1.26 per watt, with prices expected to drop to $1.17 next year. Most anticipate the price of solar module, such as thin film, will hit 50¢ per watt within four or five years. First Solar, the world’s largest maker of thin-film solar panels, has told investors that production costs will range between 52¢ and 63¢ per watt by 2014. When companies can produce solar photovoltaic modules for less than 50¢ per watt, solar energy will reach grid parity. Grid parity refers to the point at which the cost of solar electricity rivals that of traditional energy sources, such as coal, oil, or nuclear. The solar module price drop is driven by cheaper manufacturing costs, lower costs for such crucial raw materials as silicon, and rapidly improving technology. A recent study even claims solar grid parity is already here today, based on a legitimate levelized cost of energy (LCOE), calculated the cost in $/kwh. The value of LCOE is determined by the choice of discount rate, average system price, financing method, average system lifetime and degradation of energy generation over the lifetime. Figure 3 illustrates the effect of initial installed cost and energy output on the LCOE value. For a PV system with production cost at $0.5/W, the initial installed system cost will be $1.5-$2/W, after considering labor cost and module margin. If we assume energy output is 1500 kWh/kW/yr, which is reasonable in south west area in the U.S., the LCOE value in Figure 3 will fall in the range between $0.06/kWh and $0.08/kWh, the lower side of grid parity value for the U.S. residential electricity rates range.

Figure 3. LCOE contours in $/kWh for solar PV systems for energy output versus initial cost of the system for a zero interest loan, discount rate of 4.5%, degradation rate of 0.5%/yr and 30 year lifetime (Courtesy of Prof. Joshua Pearce at Queen’s University)

Based on the analysis above, it is reasonable to believe we can power the U.S. electric grid solely by solar PV, technically and economically. Thomas Edison had a great quote on solar energy: “We are like tenant farmers chopping down the fence around our house for fuel when we should be using Natures inexhaustible sources of energy — sun, wind and tide. … I’d put my money on the sun and solar energy. What a source of power! I hope we don’t have to wait until oil and coal run out before we tackle that.”

 

David Anthony was the Managing Director of 21Ventures, LLC, a VC management firm that has provided seed, growth, and bridge capital to over 40 technology ventures across the globe, mainly in the cleantech arena. David received his MBA from the Tuck School of Business at Dartmouth College in 1989 and a BA in economics from George Washington University in 1982. David passed away in April 2012. 

Tao Zheng is a material scientist in advanced materials and cleantech industry. He held 20+ patents and patent applications, and published many peer-reviewed papers in scientific journals. Tao Zheng received his B.S. degree in polymer materials sciences from Tsinghua University in China, and a Ph.D. degree in chemical engineering from University of Cincinnati. He obtained his MBA degree with distinction in finance and strategy from New York University, Stern School of Business, where he was designated as “Stern Scholar” and received “Harold Price Entrepreneurship Award”. 

The World According to BP

On January 18, BP (NYSE: BP) released Energy Outlook 2030, its official corporate view of the future of energy.  Every year, BP releases its Statistical Review of World Energy that serves as an excellent compendium of historical and current data on a host of energy-related issues, but rarely does BP present its projections of trends and the associated implications on the energy markets.

At the release event in London, BP’s CEO Bob Dudley made a brief speech covering the highlights of the Outlook.  It’s an easy and good read, which I will summarize here.

Dudley began by reciting what he termed “five realities”.  In reality, these so-called “realities” are nevertheless anticipations of events to come.  However, they do seem like pretty safe bets as playing out as described:

  1. Global energy demand will increase by 40% by 2030.  As Dudley notes, “that’s like adding one more China and one more U.S. to the world’s energy demand by 2030.  Nearly all that growth – 96% in fact – is expected to come from the emerging economies with more than half coming from China and India alone.”
  2. Fossil fuels will supply roughly 80% of global energy demand in 2030.  Dudley continues, “renewables will grow rapidly, but from a very low base.”  In other words, while renewables will be a great growth industry for the next few decades, the enormous head-start in market share that fossil fuels enjoys from more than 100 years of development, along with continued demand growth, means that energy markets and the energy industry will be dominated by fossil fuels for the lifetime of anyone who reads this blog post.
  3. Oil will continue to be essential for transportation, with 87% of mobility based on petroleum.  While increased fuel efficiency, hybrid vehicles, and expansion of biofuels will reduce needs for petroleum, the explosive growth of the developing economies and their voracious desire for vehicles means that oil demand will continue to grow.  Dudley notes that oil demand growth will be less than 1% annually, which “doesn’t sound like much, but it adds up to an additional 16 million barrels per day by 2030.”
  4. To supply this increasing demand, new frontiers will continue to be tapped.  This will be oil from deep water – what should be a sticky subject for BP, given the Deepwater Horizon debacle from less than two years ago – heavy oil such as the oil sands in Alberta (which Dudley noted needed to be “produced carefully and responsibly”), and unconventional gas plays such as shale gas and tight gas.
  5. Global CO2 emissions will rise by almost 30% by 2030.  Dudley emphasized that “this is a projection, not a proposal.  BP supports action to limit emissions including a carbon price and transitional incentives that encourage renewable energy to become competitive at scale.”  The last two words – “at scale” – are critical, not just for cleantech advocates and for the planet, but also supermajors like BP, who by their sheer size can only be bothered with energy phenomena that represent more than niches.

It’s a daunting picture.  As Dudley states, “this is not an outlook for the world as we wish to see it,” but nevertheless “it should be important input for policy-makers.”  And, it should be added, for participants and advocates in the cleantech space.

From this sober perspective, Dudley outlines “five opportunities” surfaced in the Outlook:

  1. Energy efficiency gains will be critical to the world of the future, as they simultaneously reduce consumer costs, improve energy security and cut emissions.  Frankly, this is “motherhood and apple pie” that just about all observers of the energy sector point out – nothing new here.
  2. Technology advancement will be crucial.  Dudley notes that BP thinks “the efficiency of the internal combustion engine is likely to double over the next 20 years” – an extraordinary possibility for a technology that’s over a century old and ought to be quite mature.  Innovation is not only imperative for efficiency gains but also for supply expansion to meet worldwide demand growth even netting out improvements in efficiency.  New energy supply technologies are not just in the realm of renewables but also in the realm of hydrocarbon production as well, increasing the economic access to fossil fuels on the frontiers described above.
  3. Competitive forces are an essential stimulant of capturing efficiencies and pursuing innovation.  Although Dudley doesn’t exactly say so, I think this is code for “expect increasing energy prices”, thus driving efficiency and new technology.  (Also unsaid:  “Don’t blame us or accuse us of gouging when energy prices are high.”)  I think these comments are also a soft unobtrusive plea for more access by private sector companies, and correspondingly fewer obstacles thrown up by governments, to developing new energy resources.
  4. Natural gas will be a very big thing.  Dudley calls natural gas a “sustainable option being deployed at scale”.  The latter claim of scale is inarguable, though the former claim of sustainability is semantically dubious.  Even so, it is true when Dudley says “gas typically generates fewer than half the emissions of coal” – notably, the one and only time that the word “coal” is uttered by Dudley in his entire talk.  (Admittedly, BP doesn’t have any coal business, but coal remains a sizable piece of the global energy economy, and to mention the role of coal just once is telling.)
  5. Biofuels show great potential.  According to Dudley, BP has “an optimistic view on the future of biofuels,” but “the world needs to focus on biofuels that do not compete with the food chain and are produced in a sustainable way.”  Thereafter follows some touting of second-generation biofuels (e.g., cellulosic ethanol), which still remain tantalizing but commercially-unavailable.  To me, this fifth “opportunity” is the most speculative of the bunch.

Dudley closes his comments by discussing BP’s obviously very substantial place in the world of energy. 

He acknowledges the Deepwater Horizon tragedy, and BP’s activities in expanding production of the controversial oil sands in Alberta.  No doubt, he had to, in order to avoid allegations of “greenwashing” BP’s record.

However, he tries to counterbalance this by extolling $7 billion of investments in renewables since 2005, “focused on creating large-scale commercial businesses that are not dependent on subsidies,” and BP’s emphasis on improving energy efficiency – in part because BP requires “all new projects to calculate the impact of future carbon pricing on their operations”, planning for “a future where carbon does have a price.”

Perhaps this is the most optimistic item in Dudley’s synopsis of BP’s future view of the energy sector over the next 20 years.  Hopefully, not unrealistic.