Revolutionary paradigm shifts often require cohesive development of many moving parts, some of which advance more quickly than others in practice. Germany’s revolutionary Energiewende (or “energy transition”) is no exception. Set to achieve nearly 100 percent renewable energy by 2050, Germany’s Energiewende is one of the most aggressive clean energy declarations in the world. While growth of Germany’s installed renewables capacity has been explosive in recent years, optimization measures designed for Energiewende have manifested at a relatively slow pace.
Germany already has one of the most reliable electric grids in the world, but as implementation of Energiewende continues, optimization will be key to its future success. This will require better sources of backup generation to accommodate the intermittency of wind and solar, a dynamic energy market that ensures fair compensation for this backup, and a more flexible, resilient grid enabled by smart grid technologies to fully optimize demand side resources and a growing renewable energy portfolio. Read More
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
By: Claire Dooley, student at the Bren School of Environmental Science & Management
Most of us in America would argue that affordable and reliable energy access is a basic life necessity, possibly even a basic human right. However, JD Power & Associates recently reported that only 3% of consumers are actually reviewing their energy usage more than once a month. Interaction with this commodity is almost entirely passive. Utilities do whatever it is they do to keep the electrons flowing, and we pay the bill.
With all of the public attention that energy’s impact on climate change has received in recent months—including IPCC findings that human-induced global warming is unequivocal and a new EPA regulation on coal-fired power plants—consumer awareness and interest in curbing our reliance on dirty energy is on the rise. Concurrently, the massive influx of residential clean energy technologies is providing unprecedented opportunity for the public to participate in climate change solutions. Read More
Superstorm Sandy crippled much of New Jersey’s critical infrastructure when it swept through the state two years ago. Stuck without power at home, many of the state’s residents also couldn’t get to work because the operations center for New Jersey Transit (NJ Transit) flooded, damaging backup power systems, emergency generation, and the computer system that controls train operations.
New Jersey is doing its best to make sure that won’t happen again. After a highly competitive grant process, NJ Transit last week received $1.3 billion in federal funds to improve the resilience of the state’s transportation system in the event of devastating future storms. The funds include $410 million to develop the NJ TransitGrid into a first-of-its-kind microgrid capable of keeping the power running when the electric grid goes down.
Microgrids are different from traditional electric grids in that they generate electricity on-site or nearby where it’s consumed. They can connect to the larger grid or island themselves and operate independently. Read More
For months now there has been much secrecy and mystery surrounding the location of electric car revolutionary Tesla's new $5 billion Gigafactory. The factory will supply cheaper batteries for the company’s Model 3 electric car and will be large enough to manufacture more lithium-ion batteries than the entire industry produces now. Due to its sheer scale, the factory is expected to reduce the cost of batteries by almost one-third and create close to 7,000 jobs directly and thousands more indirectly.
Amidst all the rumors abounding, closed door meetings, and tax break wars, I wrote about Tesla’s search for the perfect factory location – of which Texas was in the running. Despite Tesla breaking ground near Reno, Nevada a few weeks ago, there was still speculation about where the Gigafactory might be located, and Texas' chances remained somewhat alive.
But no more. Tesla indeed confirmed that Reno will be the home of the Gigafactory. This is great for Nevada’s economy, but as a Texan, it still feels like a bit of a blow – though I’m not surprised.
While Texas Governor Rick Perry personally lobbied for the Gigafactory to make its home in Texas, it doesn’t help that he’s at the helm of a state hostile to clean energy, despite leading the nation in wind power. Although I’m hopeful that future clean tech endeavors will come to Texas, the existing status quo needs to change to combat this hostility. Read More
Resiliency+ is a new blog series, which highlights the ways in which different clean energy resources and technologies can play an important part in increasing energy resiliency in New Jersey and around the country. Check back every two weeks, or sign up to receive Energy Exchange blog posts via email.
The Federal Energy Regulatory Commission (FERC) describes demand response as “changes in electric usage by end-use customers from their normal consumption patterns in response to changes in the price of electricity over time, or to incentive payments designed to induce lower electricity use at times of high wholesale market prices or when system reliability is jeopardized.”
There is quite a bit to unpack in that definition, but put simply, demand response is little more than a way of financially motivating customers to reduce their energy use when electricity is particularly scarce and expensive or when the wires are overburdened (check out EDF’s other blog posts and resources that go into more detail). The end result is a more efficient electric grid which is less overbuilt and less dependent on inefficient fossil-fuel plants that are often uneconomic to operate and highly polluting, but may be called upon when all else fails. Read More