Archive for TVA

Sniper attack on power grid

A recently revealed criminal attack upon a Pacific Gas & Electric (PG&E) substations has given lawmakers pause and turned the subject not just to cybersecurity for electric power infrastructure, but physical security.
The Wall Street Journal reported a previously unpublicized 52-minute assault by snipers on PG&E’s Metcalf transmission substation. The assailants fired some 100 bullets into the substation, which knocked 17 transformers out of service.
PG&E was able to stave off a loss of service by diverting to other T&D assets, but utility workers had to spend 27 days repairing the shooters’ damage to the substation area.
The FBI, which is serving as lead agency on the investigation, does not believe the attack was an act of international terrorism. Jon Wellinghoff, who led FERC at the time, said he believed the incident was domestic terror.

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A One Megawatt Project Planned for Oak Ridge

Restoration SevicesRestoration Services Inc. is partnering with Vis Solis to build a one megawatt solar farm at the East Tennessee Technology Park, former K-25 site, on a site leased from Community Reuse Organization of East Tennessee (CROET). The solar power generated electricity will go to the TVA grid to run the equivalent of nearly 150 homes. Gil Hough, manager of the renewable energy division of Restoration Services says that is almost a done deal. Construction is expected to start in April. What makes this solar installation unique is the use of Vis Solis tracking of the sun to always keep the panels pointed towards the sun for maximum performance. The increase in power production can be as high as 30% over the conventional fixed arrays.

Every Four Minutes, Another American Home or Business Goes Solar

Obama_in_Georgetown-200x150This was the quote from the President’s State of the Union address this past week. He then suggested, as he has before, that we divert tax breaks from fossil fuel industries to fund more development of “fuels of the future.” Even Forbes stated that the shift in supports “While that policy makes some sense, it needs to be pegged to commodity prices..” There has been a split in the Republican Congress members from a solid wall against renewables, to one where many of the party are now supporting wind, solar and biomass. Expect the final version of the Agriculture bill to contain substantial support for biomass as an energy source. We do need more research into future solar development. We need to concentrate on supporting increases in conversion efficiency for solar PV.

We need the Federal Government to fund a more automated solar foundry in the Gigawatt class which would demonstrate producing solar panels for less than $0.30 per watt. We need to automate the installation of racking and solar panel mounting for solar plants. We have produced panels with 30% and higher efficiencies, but the cost was prohibitive. Focussing on higher efficiency along with a massive production facility will result in lower panel cost in large scale manufacturing. The windpower from Texas can be sent to TVA region for about four cents per kilowatt-hour according to recent testimony before the TVA resources council. Solar has to aim for that same price.

Elon Musk’s SolarCity taps the power of the crowd to reduce cost of distributed solar

Elon Musk gets solar. (Simon Dawson/Bloomberg)

Elon Musk’s role as chairman and primary shareholder in SolarCity — a solar energy company run by his cousins – that’s getting a lot of attention these days. SolarCity was already the first to market with bonds backed by the revenue from rooftop solar projects, making it possible for institutional investors to invest in the success of future solar projects. (It’s essentially the same logic that makes it possible for investors to buy mortgage-backed securities, thereby creating a robust housing market). SolarCity’s latest move, announced this week, is the ability for individual investors also to participate in this market. SolarCity is essentially creating a new Web-based platform to enable the crowd to make money off other people installing solar panels. Company to sell bonds backed by rooftop solar panels, plans to offer similar products to individual investors. SolarCity expects to introduce within six months an online system for retail investors to provide debt for SolarCity’s rooftop power plants. The system will provide one of the few opportunities for individuals to back renewable-energy projects, which generate steady revenue from selling electricity. Chief Executive Officer Lyndon Rive said “We expect billions of dollars of investment through this platform”.

More information may be found at: http://www.washingtonpost.com/blogs/innovations/wp/2014/01/16/elon-musks-five-insights-into-solar-energy/?tid=hpModule_1728cf4a-8a79-11e2-98d9-3012c1cd8d1e and http://www.bloomberg.com/news/2014-01-15/solarcity-plans-to-offer-asset-backed-debt-to-retail-investors.html

Clean Energy Policy: Outlook for 2014

Pew Charitable Trust has a division on Clean Energy led by Phyllis Catano. At the end of this past year Pew gave their clean energy report in the form of a webinar including published presentations by three top tier organizations represented by representatives including Phyllis Cuttino, director, Pew clean energy program, Pat Bousliman of Elmendorf Ryan, Ethan Zindler of Bloomberg New Energy Finance.

You can find the presentations at: http://www.pewenvironment.org/uploadedFiles/PEG/
Publications/Other_Resource/CEBN-End-of-Year-Webinar.pdf

Solar Photovoltaic Installation at Chilhowee Park

This is a request for proposal due January 10th. For details go to: http://www.cityofknoxville.org/purchasing/

Minn. Judge: Solar Beats Natural Gas for Utility Procurement

In what is being called an unprecedented decision, solar energy went head-to-head with natural gas in a competitive evaluation for utility resource planning — and solar came out on top.

Xcel Energy demonstrated need for 150 MW of new electricity generation by 2017 (and possibly 500 MW by 2019. Office of Administrative Hearings (ALJ) to look at several proposals to decide “the most reasonable and prudent strategy” to meet Xcel’s needs. Three of the five proposals received dealt with natural gas as the energy source, one offered solar in a rather unique way.

The solar project encompasses roughly 20 different commercial-sized sites (2-10 MW) adding up to 100 MW, sized to offset roughly 20 percent of the existing load at each respective substation. The cost for the 100 MW project was $250 million. Using computer models, the ALJ’s administrative law judge Eric Lipman compared each proposal against each other, gauging cost savings, fuel consumption, pollutants emitted, and other factors, and then added a number of contingencies for mandated CO2 reductions, market pricing fluctuations for each energy source, and both short- and long-term demand projections — as well as the mandated RPS and solar carve-out. Lipman also added criteria to be “compatible with protecting the natural and socioeconomic environments, including human health.”

Lipman decreed that in the short-term “the greatest value to Minnesota and Xcel’s ratepayers is drawn from selecting Geronimo’s solar energy proposal.” When properly analyzed under either a LCOE or strategist modeling, the solar submission was the lowest cost resource proposed.

Responding to the ruling, Xcel issued a statement saying it appreciates the work of the ALJ toward resource acquisitions but it “disagree[s] with some of the findings and recommendation,” and the company pledged to file a complete response once exceptions are filed with the commission.

PUC decision

Biggest Cost Reduction for Rooftop Solar Installations

According to a recent time-and-motion study of rooftop solar installations, the biggest opportunity for cost reductions are with integrated racking, and in eliminating the array of little nuts, bolts, wires, clips, pieces and parts that don’t add any functional value to the system, but still need to be assembled on the rooftop.

Full Report

Will Rural America Continue REAPing Renewable Energy Rewards?

Barn_Caldwell_Idaho
Based on a tally of 2013 REAP announcements, the total awards for the Southeastern states approaches $5 million in grants, leveraging more than $15 million in private dollars. These investments include solar photovoltaic installations, energy efficiency equipment, geothermal, and biomass projects.
Energy efficiency awards were particularly notable this year, with diverse projects including irrigation, lighting, agricultural curing and drying, and diesel engines being replaced with electric motors.

Here’s the state-by-state breakdown of 2013 REAP grant awards for our region (rounded down to the nearest thousand):
FL > $354,000
GA > $1,400,000
NC > $1,417,000
SC > $584,000
TN > $1,224,000

Original article

Utility Of The Future Or Future Of The Utility?

Today's distributor financial modelimpact of distirbuted solar on utility revenue

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?

Where will the funds for distribution system come from

original article