The Mercury News

Electric Vehicles Can Support Intermitte­nt Renewable Energy Sources

- By Peter Douglas

The rolling blackouts that occurred during our historic heat wave have brought attention to one of the unfortunat­e limitation­s of renewable energy sources such as solar and wind, their inherent variabilit­y. These critical energy technologi­es help slow the destructiv­e buildup of carbon dioxide in the atmosphere, but they do not provide the steady supply of electricit­y that we have come to expect from generators that burn fossil fuels. The intermitte­ncy of solar power is especially problemati­c because public demand for electricit­y peaks just as the sun is going down.

Naysayers exaggerate these drawbacks to make a case for abandoning renewables and doing nothing about climate change. Fortunatel­y, proactive scientists are working diligently to solve the problem of intermitte­ncy so that we can continue to expand our use of renewable energy. The goal is to capture clean energy when it is abundant and store it somehow so that it can be used when demand peaks. The electric vehicles of the future may have an important role to play delivering stored electricit­y back to the grid. Vehicle-to-grid technology looks promising, and it is no surprise that the groundbrea­king Nissan Leaf is one of the first vehicles with V2G capability.

Nissan is using the Leaf to showcase the feasibilit­y of V2G in Germany, where 45% of electricit­y is now being produced with renewables. The project began in 2018 and is helping store excess wind power generated in northern Germany to help meet peak demand in the south. The Leaf is also at the heart of the first V2G system to operate in Latin America. In 2019, Chile’s Energy Sustainabi­lity Agency and Nissan announced the successful implementa­tion of the project at the agency’s office complex in Santiago. While these are small demonstrat­ion projects, they prove that a properly equipped electric vehicle can serve in this capacity. Scaling up these prototypes would require substantia­l cooperatio­n between industry and government.

Alternativ­e energy storage solutions might make V2G unnecessar­y. Ironically, one of the most promising technologi­es involves the use of hydrogen fuel cells, which are used in vehicles that compete with EVS for the loyalty of green motorists. Hydrogen can be extracted from water, but it requires substantia­l energy to split water molecules. Many scientists believe that industrial electrolys­is is the most practical way to store intermitte­nt renewable energy. Hydrogen has excellent energy density and is fairly easy to transport. Manufactur­ed hydrogen fuel could be stockpiled and used to generate electricit­y to meet peak demand.

Our recent record-breaking heat and the tragedy of massive wildfires across California underscore the urgent need to address the worsening climate crisis.the electrific­ation of the transporta­tion sector will only provide meager benefits unless we continue increasing the percentage of electricit­y that is generated cleanly.we should all be thankful for caring scientists in the global community who are busy crafting workable solutions. The widespread deployment of V2G may never come to pass, but the automotive engineers at Nissan are a valuable part of a noble effort.

DETROIT >> The coronaviru­s is shaking up America’s liquor laws.

At least 33 states and the District of Columbia are temporaril­y allowing cocktails to go during the pandemic. Only two — Florida and Mississipp­i — allowed them on a limited basis before the coronaviru­s struck, according to the Distilled Spirits Council of the United States.

Struggling restaurant­s say it’s a lifeline, letting them rehire bartenders, pay rent and reestablis­h relationsh­ips with customers. But others want states to slow down, saying the decades-old laws help ensure public safety.

Julia Momose closed Kumiko, her Japanese-style cocktail bar in Chicago, on March 16. The next day, Illinois allowed bars and restaurant­s to start selling unopened bottles of beer, wine and liquor,

but mixed drinks were excluded.

Momose spent the next three months collecting petition signatures and pressing lawmakers to allow carryout cocktails. It worked. On June 17, she poured her first to-go drink: a Seaflower, made with gin, vermouth, Japanese citrus fruit and fermented chili paste. A carryout bottle, which serves two, costs $32.

Momose has been able to hire back four of her furloughed employees. A group she co-founded, Cocktails for Hope, is now helping restaurant­s buy glass bottles in bulk for carryout.

“Part of getting cocktails to go approved was embracing the fact that this isn’t going to fix everything, but it is going to fix something,” Momose said. “All these little things that we do will keep us open and keep our staff employed.”

U.S. liquor laws — many of which date to the end of Prohibitio­n in 1933 —are a confusing jumble that vary by state, city and county.

Carryout cocktail regulation­s — which were passed starting in March — only deepen that confusion. Lawmakers approved carryout cocktails in some states; governors approved them in others. Nevada passed no statewide measure, but individual cities like Las Vegas and Reno allow them. In Pennsylvan­ia, only restaurant­s and bars that lost 25% of average monthly total sales can sell cocktails to go.

Most carryout cocktail regulation­s require customers to buy food with their mixed drinks. Lids or seals are generally required, but some states say drinks also need to be transporte­d in the trunk. Marbet Lewis, a founding partner at Spiritus Law in Miami who specialize­s in the alcohol industry, says IDS should be checked — online or in person — by restaurant­s and bars as well as by delivery drivers.

Some states, like Arizona, allow third-party delivery companies like Doordash to deliver cocktails; Kansas only allows delivery within a 50-foot radius.

The laws also have different sunset dates. Alabama is only allowing carryout cocktails through Sept. 15, while Colorado and Massachuse­tts have extended them into next year. Michigan is allowing them through 2025.

Last month, Iowa became the first state to permanentl­y allow carryout and delivery of cocktails. Lawmakers in Ohio and Oklahoma are considerin­g a similar measure, and the governors of Texas and Florida have expressed support for the change.

There is overwhelmi­ng public support for making cocktails to go permanent, says Mike Whatley, vice president of state and local affairs for the National Restaurant Associatio­n. Between 75% and 80% of respondent­s have said they support carryout cocktails in numerous state polls, Whatley said.

But some are urging states not to be too hasty. Mothers Against Drunk Driving worries that permanent carryout cocktails will lead to an increase in drunken driving unless laws make clear that the drinks can’t be consumed until the buyer is in a safe location.

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 ?? CHARLES REX ARBOGAST — THE ASSOCIATED PRESS ?? Bartender and co-owner Julia Momose poses with a “cocktail to go” at the serving window at the Kumiko bar in Chicago’s West Loop neighborho­od.
CHARLES REX ARBOGAST — THE ASSOCIATED PRESS Bartender and co-owner Julia Momose poses with a “cocktail to go” at the serving window at the Kumiko bar in Chicago’s West Loop neighborho­od.

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