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Hydrogen FAQs

Why hydrogen?

One of the key strengths of hydrogen as an energy carrier is its ability to reduce petroleum-dependence and environmental degradation and enhance economic and national security. Hydrogen can be produced domestically from a variety of sources, especially renewable sources of energy including wind, solar, biomass, and geothermal, and clean fossil fuels like natural gas.

Why is hydrogen important for California?

California can deal with the myriad problems caused by our over-dependence on petroleum fuels such as air pollution, public health, energy security, and national security, by investing in California's ability to innovate our way to a clean hydrogen future, thus bringing good jobs, investment, and continued economic prosperity to California.

Where will the hydrogen come from?

Hydrogen can be extracted from a variety of sources such as biomass (organic matter), natural gas, and even water. Hydrogen can be produced in a completely zero-emission manner by producing electricity with renewable energy and running that electricity through water (H2O) to extract hydrogen from its bond with oxygen. This process is called "electrolysis". Hydrogen can also be produced by releasing it from its bonds with carbon in hydrogen-rich compounds like natural gas (methane).

What are people talking about when they refer to "Green Hydrogen" and "Black Hydrogen"?

"Black hydrogen" refers to hydrogen produced through processes that result in pollution or greenhouse gas emissions. "Green hydrogen" refers to hydrogen produced through processes that have zero emissions of carbon dioxide, or no net emissions of carbon dioxide. "Black hydrogen" comes from the reformation of fossil fuels such as natural gas or coal, although natural gas reforming is quite clean. (The use of nuclear power to produce electricity for electrolysis is also considered by many to be "black hydrogen".) "Green hydrogen" can come from electrolysis using renewable energy as its source of electricity. The decomposition of organic matter into hydrogen is also considered "green" because, even though CO2 is emitted, it is no more CO2 than the organic matter absorbed during its growth phase, and is therefore considered carbon-neutral. While these are important distinctions, it is also important to remember that one of hydrogen's key strengths is that it can be derived from a diverse portfolio of sources.

What is "The California Hydrogen Highway Network"?

The California Hydrogen Highway Network is a vision for a network of hydrogen fueling stations strategically located across the state in such a manner that California fleets and motorists have easy access to refueling stations. Governor Schwarzenegger laid out this vision when he signed Executive Order S-07-04 on April 20, 2004.

The California Hydrogen Highway Blueprint Plan, developed through a public-private partnership, detailed ways for the state to achieve this vision.

How much will the California Hydrogen Highway Network cost?

Estimates indicate average fueling station capital costs to be $450,000 per station for low volume, dedicated single-dispenser vehicle facilities. Converting one quarter, or 2,500 of California's gas stations to carry hydrogen would require capital expenditure of an estimated $1.125 billion. Capital costs for converting 500 stations would be $225 million. The California Hydrogen Highway Network as currently envisioned, calls for roughly 200 stations, or somewhere between $100 and $200 million, depending on the size of the stations.

Who is going to pay for all this?

Public/private partnerships are the best way to spread the risks and benefits of early hydrogen infrastructure development.

What should the role of government be?

The public sector needs to focus on how it can help set the stage for hydrogen commercialization so that investment by the private sector can take place - by looking at incentives, loan guarantees, revenue bond funding, education and training, and adoption of codes and standards.

Why should California be out in front on this risky venture?

Inaction is far riskier than leading the way to a vision of a clean and independent hydrogen transportation system. California cannot afford to continue blindly down its current path of addiction to petroleum fuels. California is the fifth largest economy in the world and we have traditionally led the way in the development of clean vehicles and clean air regulations. However, many of the world's nations are actively investing in a similar vision of a hydrogen economy for a range of reasons - energy security and diversity, national security, the environment, climate change, and public health concerns.
The opportunities are too great and the costs too high for California to sit on the sidelines. We have a responsibility to lead and must innovate our way to a clean and prosperous future.

Shouldn't the state and federal governments be investing their resources in technologies that will make a difference immediately, such as hybrids and cleaner-burning engines and fuels?
This is not an either-or proposition. Government policies have been the driving force in spurring the development of greater-efficiency internal combustion vehicles and cleaner petroleum fuels, and efforts must continue to encourage widespread commercialization of cleaner, more efficient vehicle technologies and alternative fuels. However, the American transportation sector is wholly dependent on petroleum and is responsible for over 2/3rds of this nation's consumption of oil. Furthermore, the number of new cars coming on the road each year and the increase in total vehicle miles traveled are negating the benefits of higher-efficiency petroleum vehicles, while global demand for petroleum-based fuels is skyrocketing. Therefore, the best option is to move quickly and aggressively to commercialize a viable alternative to petroleum-based transportation fuels. That will not happen without public sector support, yet, until that goal is achieved, short-term conservation measures (which include higher-mileage vehicles such as hybrids) should be supported as well.

Is using hydrogen in internal combustion vehicles an unwise investment?

No. Using hydrogen in existing internal combustion engines (slightly modified to accommodate hydrogen) is an advantageous plan because it facilitates the transition to hydrogen fuel and creates demand for infrastructure without having to wait until fuel cells become market-ready. Using hydrogen in an internal combustion engine significantly reduces emissions of criteria pollutants and increases mileage.

Is a hydrogen economy possible? Will it ever happen?

Hydrogen-powered vehicles, generators, and production and distribution facilities are already in place across the state, nation, and world. The hydrogen vision for California is real and attainable; however, it will take time so we must begin now.

 


Biodiesel FAQs

 

California Renewable Diesel Standard FAQs

What does SB 1675, the California Renewable Diesel Standard do?

This legislation states that diesel fuel dispensed in the state of California contain
at least 2% biodiesel by 2008, and increase to 5% by 2010 as the Air Resources
Board and Energy Commission determine environmental compliance and
supplies are sufficient.

What is the current status of SB 1675?

The bill has passed through several Senate committees and is continuing to be heard in the legislature.  To view the most recent action on the bill, please click here.

To view and print a .pdf version of FAQs for SB 1675, please click here.

Why does California need this bill?

As the nation’s leading consumer of petroleum for transportation, California is
complicit in our country’s dependence on foreign oil. Diesel fuel accounts for a
sizeable share of that consumption. The environmental impact resulting from the
production, distribution, and consumption of diesel fuel has imposed serious
health and economic impacts on this state. Numerous legislatures,
administrations, and agencies in California have affirmed the need for our state
to reduce its petroleum consumption. This bill is consistent with those
recommendations, most recently enumerated in the state’s Integrated Energy
Policy Report, Recommendations for a Bioenergy Action Plan for California, the
Climate Action Team Report, and Reducing California’s Petroleum Dependence.

What is biodiesel?

Biodiesel is a wholly renewable, domestically produced, petroleum-free fuel that
can be used as a replacement for diesel. It is non-toxic and biodegradable.
Biodiesel reduces petroleum consumption, provides lower emissions than diesel,
similar engine performance, creates jobs and markets for American farmers, and
helps promote a diversified fuel portfolio for the state.

What is a biodiesel ‘blend’?

Biodiesel can be mixed with petroleum-diesel to create a blend. The amount of
biodiesel in a blend is indicated by B, followed by the percentage of biodiesel in
the blend. This bill would create a blend of B2 (2% biodiesel) by 2008, and B5 by
2010.

How much petroleum usage will this displace?

The B2 standard would reduce petroleum consumption by an estimated 61.5
million gallons a year. The B5 standard would reduce petroleum consumption by
162.5 million gallons per year.

What impact will this have on diesel emissions?

By 2010, this standard is estimated to reduce CO emissions by over 4805 tons
per year (tpy); CO2 emissions by over 1 million tpy; SOx emissions by more than
481 tpy; and PM emissions by over 666.3 tpy. Additionally, biodiesel’s emissions
are considered to be ‘carbon neutral’ because the CO2 it emits was absorbed in
the growth of the feedstock that produced the fuel.

What impact will this have on NOx emissions?

This bill would require the B2 and B5 blends to comply with existing air quality
standards, including NOx. Biodiesel blends of B20 or higher may result in
quantifiable increases in NOx emissions. However, the introduction of ultra-low
sulphur diesel to California, new 2007 clean diesel engines, and the availability of
cost-effective after-market NOx treatments will enable the B2 and B5 blends
stipulated in this bill to comply with air standards. New biodiesel blends can
actually reduce NOx emissions below diesel levels.

Will this make diesel fuel more expensive per gallon?

Because the price of biodiesel is historically stable and petroleum-diesel is highly
volatile, any cost premiums would depend on the price of petro-diesel. In the
past, B2 has been about 3¢ more per gallon, however, that disparity is shrinking.
In fact, in Los Angeles, B2 has sold for less than CARB Ultra Low Sulfur diesel.
Biodiesel’s price stability not only makes it cost-competitive with petroleum
diesel, but can help stabilize diesel fuel prices. The American Trucking
Association – in its recent endorsement of the use of B5 – wrote: “biodiesel may
be an effective means to extend the supply of diesel fuel.” Additionally, many
feel that these price increases will be compensated by the improved lubricity
biodiesel will provide.

Will fueling stations have to be modified to accommodate these blends?

No. California’s existing diesel fueling stations are already capable of handling
the low-level blends called for in this bill.

Will vehicles have to be modified to accommodate these blends?

No. Existing diesel vehicles will not require any modifications to accommodate
these low-level blends of B2 and B5. Engine and vehicle manufacturers warranty
the use of B5, and many are now providing warranties for B20 and B100.

Will this positively or negatively impact engine performance?

The phase-in of the federal ultra-low sulphur diesel (ULSD) rule will result in
reduced lubricity in diesel fuel. Biodiesel’s improved lubricity can compensate for
that lost from the phase-in of ULSD. Biodiesel also has a solvent effect in
engines that can remove carbon and soot build-up. Biodiesel does have a
slightly lower energy density than diesel (approximately 0.1% at B2 and 0.6% at
B5) but this loss is compensated by the higher cetane-value of biodiesel.

Will this effect engine starting in cold conditions?

Cold-start issues related to biodiesel are not expected to be a concern in
California, where temperatures in the majority of the state rarely approach
freezing. In climates where temperatures routinely drop below freezing, the use
of biodiesel in high blends (B20 and above) is a concern that is addressed with
the use of additives and technologies to keep the fuel warm when the vehicle is
not in use. At B2 and B5 blends, cold start issues will be no different than with
regular diesel fuel.

Will use of B2 by 2008 and B5 by 2010 void engine warranties?

Nearly every engine and vehicle manufacturer warrantees the use of biodiesel up
to blends of B5. Many – such as DaimlerChrysler - will now warranty some of
their engines to use up to B20.

Will use of biodiesel blends void diesel retrofit equipment warranties?

While some companies have submitted their diesel retrofit equipment to the
California Air Resources Board for verification of certification of compatibility with
biodiesel blends up to B20, others have not. It will be incumbent upon retrofit
equipment manufacturers to submit their equipment to ARB for verification of
compatibility with biodiesel in order to sell their product in California.

Can the biodiesel industry meet the increased demand this bill would
generate?

The biodiesel industry has confirmed that it will be able to meet the expected
increase in demand created by this standard. In 2005, 75 million gallons of
biodiesel were produced, though industry presently has the capacity to produce
354 million gallons a year. Nationwide plant expansions expected to be
completed within 17 months will increase production capacity to 632 million
gallons per year.

Why B2 by 2008?

B2 represents a level that the biodiesel industry has indicated it would not have
problems meeting. At this level, engines are covered by OEM warranties and
emissions and petroleum reduction benefits become significant. 2008 was
chosen as the year for implementation because it allows the Air Resources
Board to develop performance and monitoring standards, and gives the biodiesel
industry sufficient time to expand their facilities if need be.

What happens if supplies are insufficient or compliance with environmental
standards is threatened?

The bill states that the Air Resources Board will have the authority to suspend
the rule if environmental compliance becomes threatened or out of compliance,
and the California Energy Commission will have the authority to suspend the rule
if supplies are deemed insufficient.

Where will the biodiesel come from?

Like petroleum, biodiesel is an openly traded commodity, so it could come from
whichever supplier offers the lowest price. However, there is more than enough
biodiesel produced in the US to meet the nation’s needs. Presently, there are 5
suppliers in California producing over 21 million gallons per year. Furthermore, it
is anticipated that California growers’ proximity to market will enable them to
provide a lower-cost feedstock than that grown and shipped from other states.

Will waste-vegetable oil be part of this supply?

Biodiesel can be produced from used vegetable oil – or waste grease. In
California food processors and restaurants produced over 36 million gallons of
waste grease in 2004. Though markets already exist for portions of this
commodity, it can be considered a viable source for biodiesel.

Who will enforce this standard?

Enforcement of this standard will be no different than today’s enforcement of
existing diesel and gasoline fuel standards. This authority rests with the
Department of Food & Agriculture’s Division of Weights & Measures, and the
California Air Resources Board.

Are there standards for biodiesel?

Yes. The biodiesel used in California will have to comply with standards
proscribed by the American Society for Testing and Materials’ (ASTM) standard
D-6751 unless or until the state sets its own standard.

Will California be the first state to implement a renewable diesel standard?

No. In 2005 Minnesota began its renewable diesel program that has set a B2
standard for every gallon of diesel fuel sold in that state. The Washington state
legislature recently approved a similar bill for biodiesel and ethanol. Alabama,
Idaho, Kansas, and Missouri all have proposed renewable fuel standards in their
legislatures right now.

Will biodiesel compete with ethanol or other alternative fuels?

No. Biodiesel can only be used in compression-ignition (diesel) engines, while
ethanol is used in spark-ignition ignitions (which, today, run on gasoline).
Ethanol can also be used to produce biodiesel. Presently there are no other
market-viable, renewable alternative fuels for diesel engines.

Who is Energy Independence Now and how is this effort funded?

Energy Independence Now (EIN) is a non-profit organization dedicated to
catalyzing California’s transition to a clean, renewable energy economy. EIN’s
work on biodiesel is solely funded through a dedicated grant from Patagonia’s
Environmental Grants Program as part of that company’s participation in the 1%
for the Planet program. EIN receives general support from foundation grants.

 


Waste-to-Energy FAQs

Coming soon...