Electric power industry’s traditional revenue collection model, which is based on a fixed tariff applied to volumetric consumption, is showing signs of erosion due to customer self-generation at a time of tepid to non-existent demand growth. The challenge of distributed energy resources (DERs) could not have come at a worse time for the industry – just as massive investments are needed to upgrade and modernize an aging infrastructure, it is facing the prospects of a growing number of consumers buying fewer kWhs and paying even less for the privilege of being connected to the grid under prevailing laws. This is especially true for the distributors of TVA power who are prevented by contract from generating electricity. The only alternative for TVA distributors to improve their distribution system is to charge the heck out of their customers. TVA needs to give their distributors some latitude in creating new ways of generating new sources of revenue. That will require some changes in their contract to allow them to have their own distributed solar programs. Are there any other alternatives?
Archive for Renewable Energy
These days Barry Goldwater, Jr. is on an unlikely crusade. In March, the former California Republican congressman founded Tell Utilities Solar Won’t Be Killed, or TUSK, after Arizona’s largest electric utility proposed a hefty new fee on solar customers and a plan to lower net metering rates, which dictate how much electric utilities pay solar customers for excess energy sold back to the grid. As Mr. Goldwater stated it “Republicans want the freedom to make the best choice.”
Goldwater’s team won a minor victory Thursday, when state utilities regulators narrowly voted to impose an average $5 monthly fee on new solar customers in Arizona. While the ruling was a compromise for the solar industry, and an acknowledgement that solar users shift power costs to the utility’s non-renewables customers, the new fees are just a fraction of the $50 to $100 that APS had asked commissioners to add to solar customers’ monthly bills.
Backed by powerful conservative groups, public utilities in several states are now pushing to curb the solar industry, and asking regulators to raise fees and impose new restrictions on solar customers. And as more people turn to rooftop solar as a way to reduce energy costs—90,000 businesses and homeowners installed panels last year, up 46 percent from 2011—the issue is pitting pro-utilities Republicans against this fledgling movement of libertarian-minded activists who see independent power generation as an individual right. In other words, the fight over solar power is raging within the GOP itself.
“As more customers install solar on their homes, it becomes even more important that everyone who uses the grid shares in the cost of keeping it operating reliably for the future,” APS CEO Don Brandt said in the company’s filing with the state regulatory commission.
(SLevy) That is where ‘Dual Metering’ which is the TVA improvement over ‘Net Metering’ is the better alternative. The general definition of dual metering is “the arrangement that measures energy exported to and imported from the utility grid separately.” In present use within the TVA system dual metering is configured as two meters; one meter to read the home use of electric energy and the other meter to monitor the solar energy generated and sent out to the distribution line. Do not confuse this with ‘Smart Metering’ where electronic measurement devices are used by utilities to communicate information for billing customers and operating their electric systems. Kudos for TVA. Why? Because the individual user should be responsible for his or her share of the cost of maintaining the distribution grid based on how much energy they use. Their use is separately metered under Dual Metering. Now the rooftop solar is also separately metered so that the user can and should be justly compensated for the excess energy their solar system produces that goes out on the grid to be used by the neighbors. This extra solar energy should be fairly compensated as the utility saves money by not having to buy the energy delivered to the grid by the solar system from the utility power provider. So TVA and its distributors have the advantage of being in a position to fairly deal with the solar PV rooftop user/provider. What do you think?
original article in New Republic.
Franklin will lease unused land to a Nashville-based company for the future installation of a new solar panel array.
Energy Source Partners is proposing to spend $2.6 million to build a new solar array on a 3-acre sludge field site near Mack Hatcher Parkway. That array is expected to generate 1 megawatt of electricity, which would be sold to the Tennessee Valley Authority.
Over the course of the proposed 20-year contract, the 1 megawatt panels would generate $165,000 for Franklin by the 10th year of the program and about $800,000 from years 10 to 20.
Last year, Franklin leased part of an empty sludge field near its sewer plant off Claude Yates Drive to Nashville-based Energy Source Partners, which paid about $1 million to install 940 solar panels on the land. Those panels, which generate about 200 kilowatts, capture sun rays and convert them to electricity, which is then resold.
NY Times article:
The Tennessee Valley Authority sharply accelerated a shift away from coal as an energy source on Thursday, saying it would shut down eight electricity-generating units that together will burn nearly a fifth of its coal this year. TVA is to generate 20 percent of its electricity from coal, instead of the current 38 percent. It also plans to increase the use of renewable energy sources like solar and hydropower to 20 percent, from the current 15.7 percent. Bill Johnson, said experts were studying whether more coal-fired plants should be shut down later.
Two other developments hastened the shutdowns: the advent of cheap natural gas, which has turned coal into a costlier fuel, and falling demand for electricity. Thursday’s announcement was the second and biggest step the authority had taken to reduce its appetite for coal. In 2011, T.V.A. agreed to retire 18 coal-fired generating units to settle a lawsuit by states and environmental groups charging violations of the Clean Air Act. Four of those 18 units have been shuttered so far.
Eventually, the authority hopes to get a fifth of its power each from coal, natural gas and renewables and the remaining two-fifths from nuclear plants.
KKR & Co. and Google Inc. have struck a pact to invest about $400 million in six solar-power plants being built by Recurrent Energy LLC in California and Arizona. Development of the plants has been under way for years and they are expected to go online and begin producing power in January, the people said.
The plants—five in southern California and one in Arizona—are designed to produce about 106 megawatts of electricity combined, or enough to power about 17,000 U.S. homes, they said. San Francisco-based Recurrent, which will continue as their operator, has struck long-term power supply agreements with three buyers for the electricity they’re expected to churn, the people said.
Eric Wooldridge of Bells Bend Neighborhood Farms was approved for a grant this year.
USDA’s Rural Energy for America Program (REAP) grant for agricultural producers and small rural businesses covers up to 25% of the cost of a solar installation. The local office is now accepting applications!
“We anticipate funding levels under REAP for 2014 to be at or higher than last year, so applications have a stronger chance of receiving awards than previous years,” says Will Dodson, Energy Director at USDA, Rural Development in Tennessee.
The application deadline has not been announced, but it is likely to be early next year.
A farm grant lunch and learn will be held next month in Hopkinsville, KY! Click here for info.
November 14, 2013. Today at a board meeting in Oxford, Mississippi the Tennessee Valley Authority (TVA) Board of Directors voted to retire units at three of its coal plants. This will affect coal-burning units at the Colbert and Widows Creek plants in Alabama and the Paradise plant in Kentucky.
TVA’s commitment to retire units at three coal plants will protect customers from rising energy bills as coal prices increase, and protect families from the health threats posed by coal pollution. According to the Clean Air Task Force, pollution from the Colbert coal plant in Alabama alone contributed to 940 asthma attacks, 83 heart attacks, and 57 deaths per year.
As the nation’s largest public power provider, TVA was first established to bring innovation to the Valley and address a wide range of environmental, economic and technological issues. As it transitions away from coal, TVA should remain true to its founding principles by bypassing natural gas or any other dirty fossil fuel that will continue to exacerbate environmental and public health issues.
TVA is now mapping out its next Integrated Resource Plan (IRP), the strategy document outlining the utilities energy portfolio for the next 20 years. As TVA works to protect public health and decrease energy costs by moving away from coal, the utility can also commit to speeding the deployment of the most promising and cost-effective renewable technologies, like wind and solar, in its IRP. Wind and solar power are currently experiencing fast growth while simultaneously becoming more cost-competitive with TVA’s other fuel choices.
This report was excerpted from the following resource: http://www.enewspf.com/latest-news/science/science-a-environmental/47950-tennessee-valley-authority-makes-major-coal-plant-retirement-announcement.html
The Tennessee Valley Authority is gathering public input on a long-range plan for the type and mix of energy sources it needs to provide power to the region.
Finding the right mix of coal, nuclear, natural gas, hydro-electric, renewable energy and efficiency programs is the goal of the 18-month-long planning process, TVA Vice President Joe Hoagland said. “It takes a very long, strategic look at the assets TVA needs to provide low-cost electricity for the people in the Tennessee Valley,” Hoagland said in an interview.
The direction TVA takes will ultimately affect how much residents pay for electricity, and the federal utility is embarking on the planning process at a time when it faces scrutiny from a variety of interest groups.
TVA is spending more than $1 billion to install new pollution controls at its coal-fired power plant in Gallatin. Environmental groups sued TVA for not fully studying alternatives, including retiring the aging facility.
Conservation groups and the solar industry in Tennessee have criticized TVA for not doing enough to support that renewable resource. They say TVA’s small-scale solar program is stifling the industry because it sets a cap on solar power far below demand. Some of the solar installation companies have to look outside the state for work. Our polysilicon manufacturers have laid off their work force. The on-again, off-again opportunities for solar installations are killing the solar businesses in Tennessee.
I attended the first meeting along with 15 other people. Promises of answers to questions have not been received by those that asked questions which the moderator could not answer.
Hoagland said gathering input helps TVA understand what the public and other stakeholders consider important. The “Integrated Resource Plan” looks at different fuel options and tries to anticipate how those might evolve over the next two decades, he said.
TVA completed its last plan in 2011 and typically only does an update every three to five years. But Hoagland said changes in the energy industry require an earlier update.
Natural gas prices have dropped dramatically in recent years in the midst of a nationwide surge in production. At the same time, TVA’s growth in power demand has slowed, Hoagland said.
The 2011 plan anticipated natural gas prices at about $6 per million BTUs, escalating over time, Hoagland said. Now, prices are between $3 and $3.50, he said. The current plan also assumed a 2 percent to 3 percent rate of growth, while TVA now anticipates growth at less than 1 percent.
In addition, TVA hopes to complete the Watts Bar Nuclear Unit 2 plant in 2015 and retire at least 2,700 megawatts of less-efficient coal capacity by 2018.
Anne Davis, managing attorney in Nashville for the Southern Environmental Law Center, said Tuesday that she appreciates that TVA is accelerating the start of the new resource plan. She said she expects the new plan to focus on how TVA will replace its “oldest, dirtiest, and least efficient coal plants with clean and modern resources like solar, wind, hydro optimization, energy efficiency, and demand response.”
“The precipitous drop in cost of renewables and technological improvements in efficiency — coupled with enormous public demand for both of these resources — will demand more attention in this IRP,” Davis said by email.
“We have already been working with TVA on these issues, and we are committed to helping TVA modernize its long-term portfolio in a way that’s protective of ratepayers’ health, environment, and pocketbooks.”
The first public meeting was held on Thursday, October 24th in Knoxville. A second is scheduled for Nov. 6 in Memphis. To encourage more input, TVA is allowing the public to participate through online webinars. The public can access those at www.tva.gov/irp.
TVA hopes to use the webinars and a social media outreach effort to boost public participation, particular with younger residents, Hoagland said.
most of this article was taken from the Tennessean article: http://www.tennessean.com/article/20131023/NEWS/310230137/
The Solar Schools platform will help parents and students connect and organize themselves around development of specific solar projects that increase renewable energy infrastructure in their community. We are building a bridge that connects local enthusiasm for renewable energy with the experts and resources they need to build the communities they desire.
To help fund, or learn more about this campaign, visit at: http://www.indiegogo.com/projects/solar-schools-powering-classrooms-empowering-communities
A solar-powered microgrid demonstrates the potential of coupling big batteries with commercial solar. What if you could finance the energy storage equipment, much the way solar panels are financed, and the batteries provided a revenue stream? Modern grid-scale battery systems are only put in place to save money or provide services to the grid. An example is one installation that includes 402 kilowatts’ worth of solar canopies in the parking lot and, in a twist that differentiates it from most commercial solar projects, a shipping-container-sized battery from startup Solar Grid Storage. Here in Knoxville we have a battery enhanced solar powered car-charging station located at the EPRI location off Dutchtown Road. On a daily basis, though, the battery will deliver frequency regulation services to the local wholesale grid. By providing quick bursts of power to keep a steady balance between supply and demand, battery owner Solar Grid Storage will earn money that is normally paid to natural gas power plant operators.
Here are the factors that are driving the combination of commercial solar and energy storage.
1. The technology is there. Better batteries are in development that will lower cost.
2. The economics can make sense. AES Energy Storage, for instance, provides frequency regulation services at a wind farm in West Virginia, buffered by a 32-megawatt lithium-ion battery bank. Revenue comes from reducing demand charges by using stored energy during peak hours. Most of its customers are in California, which has subsidies for distributed energy storage. By contrast, the desire to have emergency power has become a priority in East Coast states hit hard by Hurricane Sandy and other severe storms.
3. Solar installers want storage — if it pencils out. Military bases and island locations that rely on diesel generators are obvious candidates. A battery can smooth out the flow of power that panels provide to the local grid and address issues, such as the drops in voltage that come when clouds pass over. Batteries could also enable solar installations in places, such as farms, which would have required costly upgrades to the grid infrastructure. The contracts to finance a combined solar and storage system are complex and need to become more standardized, as power purchase agreements are, said president Scott Wiater of Standard Solar. Financing these types of systems is still relatively new and developers need to find customers willing to try not only solar, but also relatively new energy storage technology.
4. NRG Energy Inc. and Exelon Corp.’s Constellation unit say interest in combining solar power with battery storage has soared in the year since Hurricane Sandy knocked out power to millions of homes and businesses on the East Coast. They are among more than a dozen solar providers that have introduced or enhanced in the past year systems that combine rooftop solar panels that generate power and batteries that retain electricity to use later.
People with solar-powered homes and businesses were frustrated to discover that losing power from local utilities also knocked out the inverters that connect rooftop panels to the grid, leaving them unable to tap the electricity they were producing. Adding battery storage solves that problem, said Tom Doyle, chief executive officer of NRG’s solar unit.
It’s also a growing threat to utilities.
“When Sandy came along we really didn’t have a product to keep solar power flowing during blackouts,” Doyle said in an interview yesterday at the Solar Power International conference in Chicago. “Now we can install systems that continue operating when the grid fails, and the costs are coming down.”
Battery storage can add more than 20 percent to the cost of a typical 10-kilowatt solar system for a four-bedroom home, Brendon Quinlivan, director of solar development at Constellation, said in an interview.
original article can be found at: http://www.greentechmedia.com/articles/read/three-factors-driving-the-marriage-of-solar-and-energy-storage and http://www.bloomberg.com/news/2013-10-23/nrg-and-exelon-see-batteries-spurring-demand-for-solar.html