By: Karin Rives
Not too long ago, making and selling your own electricity via rooftop solar was a novelty. Today, with 784,000 homes and businesses in the United States already on solar, such transactions are taking place every day in 44 states.
Now comes Bring Your Own Battery
As any child of the ’80s knows, October 21, 2015 is “Back to the Future Day” – the day that the film’s protagonist, Marty McFly, travels to the future in his DeLorean. Though it would no doubt be useful to have access to flying cars (think of the traffic one could avoid), Californians are seeing increased access to something more practical: electric vehicles (EVs).
In order to meet the state’s greenhouse gas (GHG) reduction goals, emissions from transportation – the sector most responsible for harmful pollution – need to be addressed. Enter Governor Brown’s zero-emission vehicle (ZEV) mandate, which aims to build enough infrastructure statewide to support one million clean vehicles by 2020, and put 1.5 million ZEVs on the road by 2025. With this executive order, we have a much better chance of ensuring a low-carbon future and effectively combatting climate change in California. Read More
By: Katie Hsia-Kiung
It may be hard to believe that just 15 years ago the term “clean tech” was largely unheard of. Today, the term has gained widespread usage, and is often applied to a diverse array of businesses, practices, and tools. Clean tech not only includes renewable energy technologies like wind and solar, but also electric motors, green chemistry, sustainable water management, and waste disposal technologies, to name just a few.
One research institution that has followed this sector through its short, but burgeoning history, is Clean Edge, a firm devoted exclusively to the study of the clean tech sector. Last week, the firm released their annual U.S. Clean Tech Leadership Index, which ranks each state based on several indicators across three categories: technology, policy, and capital. For the sixth year in a row, California came out on top as the leading state for clean technology. In fact, over the past year, California has widened its lead over the rest of the pack, with a score that is 15 percentage points higher than Massachusetts, the state in second place. According to the report, “with 55,000 people employed in its booming solar industry alone, a carbon market in place with its AB 32 trading scheme, and a 50 percent renewables goal by 2030 set by Governor Jerry Brown, California sets the pace for what a clean-energy economy looks like.” Read More
We love electric vehicles (EVs) in California and we want that love to spread. Why? It isn’t because of the cool factor – though, believe me, EVs like the Tesla are undoubtedly cool. Instead, it’s because these cars can offer significant benefits to the environment, electric grid, and economy.
California policymakers feel the love: in March 2012, Governor Brown signed an Executive Order that put an ambitious – and important – goal in place to provide the infrastructure for up to 1 million zero-emission vehicles (ZEVs), which includes fuel cell powered vehicles along with plug-in hybrid and battery EVs, by 2020 and put 1.5 million ZEVs on the road by 2025.
Here are some of the potential benefits of electric vehicles:
- Reduce harmful pollution. Because EVs don’t produce any emissions from the tailpipe when they are drawing on energy from their battery – unlike traditional gasoline-powered vehicles – they can greatly reduce the amount of harmful pollution from which California suffers. Targeting tailpipe emissions, the largest contributor to dangerous emissions, will help the state meet its greenhouse gas reduction targets and reduce harmful pollutants that are causing elevated levels of smog.
- Integrate more renewable energy. By charging at times when renewable energy is abundant (i.e., during the day to take advantage of solar and late at night to soak up wind power), EVs can enable the grid to handle more clean energy resources while still maintaining reliability.
- Avoid increasing use of fossil fuel resources. Because solar power becomes unavailable when the sun goes down, the grid sees a steep increase in the use of fossil fuel-powered energy before sunrise and after sunset. If EVs charge during the day and then draw upon that stored energy when renewable energy is unavailable it will reduce the need for fossil-fueled generators to provide energy during these times of the day.
- Avoid costs to utilities and residents. Capitalizing on the ability of EVs to integrate more renewables onto the grid can offset the need for additional, expensive transmission and distribution infrastructure as energy needs increase over time. In addition, EVs present an attractive financial proposition – by reducing or eliminating the amount that drivers spend at the gas pump, those who purchase an EV can recover the upfront cost of the car in a matter of years.
Ask most people what the Beatles and California have in common and they might very well be at a loss. However, the answer is pretty simple: they are both unabashed trendsetters in the face of resistance – the former in their musical style and the latter in its clean energy policies.
Not content with setting a Renewable Portfolio Standard that ends at 2020, Governor Jerry Brown and state legislators are pushing for the Golden State to get 50 percent of its energy from renewable resources by 2030.
To meet this ambitious target, California must build a system that is largely based on renewable electricity, like wind and solar. This is not an easy task. The primary reason? Sunshine and wind are only available at certain times of the day and can be variable during those times.
Traditionally, managers of the electricity grid have relied upon dirty “peaker” power plants – usually fossil fuel-fired and only needed a couple of days a year – to balance the grid during periods of variability or when electricity demand exceeds supply. But, in a world where 50 percent of our energy comes from renewable sources as a means to achieving a clean energy economy, we can’t rely on these dirty peaker plants to balance the variability of wind and solar.
Luckily, technology is available today that can help fill the gap of these peaker plants – and the California Public Utilities Commission (CPUC) is starting to embrace it. Read More
Also posted in Air Quality, California, Cap and Trade, Clean Energy, Climate, Demand Response, Electricity Pricing, Energy Efficiency, Energy Storage, Energy-Water Nexus, Grid Modernization, Renewable Energy
For more than 100 years, the U.S. power system relied on fossil-fueled power plants to meet our growing energy demand. Now, clean energy resources like renewables are quickly changing our energy mix. But what happens when the sun isn’t shining or the wind isn’t blowing? What about when power demand momentarily outpaces supply? That’s where batteries and energy storage come in, offering a fundamental, even disruptive change to the U.S. electricity system as we know it.
Batteries are energy game-changers
Today’s electricity system not only overproduces to be prepared for unforeseen problems, it also deploys dirty “peaker” plants that fire up during those few times per year when electricity demand is high (like during a heat wave) and the electric grid is stressed. With batteries, there’s no need for either overproduction or inefficient backup reserves, ultimately saving both utilities and customers money.
Batteries can provide bursts of electricity incredibly fast, often in milliseconds, and with far quicker reaction times than traditional power plants. As a result, energy storage helps the electric grid absorb and regulate power fluctuations, providing electricity fast, when and where it’s needed. Since the supply and demand of power must be carefully balanced, this ability helps prevent the grid from experiencing brownouts or blackouts. Read More