Showing posts with label geothermal. Show all posts
Showing posts with label geothermal. Show all posts

Kilauea lava approaches geothermal power plant

Tuesday, May 22, 2018

Lava erupting from the Kilauea volcano on Hawaii has caused a nearby geothermal power plant to shut down.

Puna Geothermal Venture is a geothermal energy conversion plant on the island of Hawaii. It brings steam and hot liquid from underground wells to the surface, where the steam is directed to a turbine generator to produce electricity. A second turbine uses the first turbine's exhaust steam to generate additional electricity. Under a contract, up to 38 megawatts of power produced by the project is sold to Hawaii Electric Light Company and distributed to customers, reportedly representing about a quarter of the big island's electricity supply.

But as Kilauea erupts, lava flows are reportedly threatening the Puna plant. The majority upstream owner of project operator Puna Geothermal Venture GP, Ormat Technologies Inc., issued a press release on May 15 describing steps taken to secure the Puna facilities in accordance with its emergency response plan, including taking electricity generation offline, shutting down and protecting the geothermal wells, removing flammable materials, and cooperating with state emergency agencies. The Honolulu Civil Beat reported on May 21 that most of the plant's wells have been capped, and that lava flows have reached the plant property but so far have been held back by a natural berm.

According to Ormat's May 15 press release, its property and business interruption insurance policies include insurance coverage in the event of volcanic eruptions and earthquake in an amount of up to $100 million (combined). But the company noted that any significant physical damage to, or extended shut-down of, the Puna facilities could have an adverse impact on the power plant's electricity generation and availability, which in turn could have a material adverse impact on the company's business and results of operations.

USDA REAP loan guarantee Maine funding available

Tuesday, December 22, 2015

Funding is available for energy projects at Maine's rural small businesses and agricultural producers through the USDA Rural Development agency's Rural Energy for America Program (REAP).  At stake is about $200 million in guaranteed loan funds available to finance renewable energy and energy efficiency projects in fiscal year 2016.

Since 2008, the USDA REAP program has provided grants and loan guarantees for renewable and energy efficiency projects at qualifying rural small businesses and agricultural producers.  Its loan program helps finance renewable energy systems and energy efficiency improvements.  Typical projects awarded funding in previous rounds include biomass fueled anaerobic digesters and biodiesel production, solar, wind, geothermal, efficient lighting conversions, motor upgrades, building envelope and HVAC improvements. 

REAP describes its loan guarantee program as lender-driven.  Usually, a qualifying farm or business will approach a lender to discuss financing a proposed project.  That lender then requests the USDA Rural Development loan guarantee, and if approved, makes and services the loan.  Guaranteed loan amounts can range from $5,000 to $25 million.  The guaranteed loan amount can cover up to 75% of the total eligible project cost, while 25% of project costs must come from other sources like business equity or other borrowed funds.

USDA Rural Development provides more information on its website about how to apply for a USDA REAP loan guarantee.  The Preti Flaherty team helps our clients understand how to benefit from REAP funding and other incentive programs for renewable energy and energy efficiency.  Contact Todd Griset to learn more.

USDA awards $68 million for energy projects

Thursday, October 9, 2014

The U.S. Department of Agriculture has announced $68 million in grants and loan guarantees for renewable energy and energy efficiency projects.  The latest round of awards under the agency's Rural Development arm's Rural Energy for America Program will support 540 projects at farm and rural business sites across the country.

Since its creation in the 2008 Farm Bill, REAP has supported more than 8,800 renewable energy and energy efficiency projects nationwide with over $276 million in grants and $268 million in loan guarantees to agricultural producers and rural small business owners.  Eligible agricultural producers and rural small businesses may use REAP funds to make energy efficiency improvements or install renewable energy systems including solar, wind, biomass and anaerobic digesters, small hydroelectric, ocean energy, hydrogen, and geothermal projects.  (For looks at previous REAP winners, check out these posts from 2011 and 2013.)

In this year's REAP funding round, USDA awarded about $68 million in investment support.  Of this, $12,376,548 will come in the form of grants, while $56,449,244 will come as loan guarantees.  While most grants are under $100,000 per project (with some below $10,000), there were some larger grant awards: for example, a biomass anaerobic digester in California won $290,000, an off-grid solar project in Hawaii won $123,338, and a direct use geothermal heat pump in Oklahoma won $133,250. Of the loan guarantees, $55.3 million will go to support 22 solar photovoltaic projects in North Carolina, mostly ranging between 2 megawatts and 5 megawatts per project. 

In each case, funding is contingent upon the recipients meeting the terms of the loan or grant agreement. USDA's hope is that these grants and loan guarantees will enable American agricultural producers and rural small business owners to reduce their energy costs.

REAP was reauthorized by the 2014 Farm Bill, so expect USDA Rural Development to solicit more REAP projects later this year.  While not all sites may qualify, USDA's definition of eligibility is more broad than many assume.  The Preti Flaherty team helps our clients understand how to benefit from REAP funding and other incentive programs for renewable energy and energy efficiency.  Contact Todd Griset to learn more.

Switch movie showing in Maine

Thursday, March 13, 2014

Tonight the Maine chapter of the U.S. Green Building Council and ReVision Energy are hosting a showing of the movie Switch at the Portland Public Library.



Switch, a 2009 documentary produced by Harry Lynch and geologist Dr. Scott Tinker, describes some of the changes affecting the production and consumption of energy resources around the world.  From coal and oil, to nuclear power and renewable resources, to energy efficiency, the way society produces and converts fuels and other energy resources into useful power is shifting.  These changes are driven by advances in technology, as well as market and regulatory forces.  The movie features visits to places including a coal mine, geothermal power plant, and a hydropower station, coupled with interviews with industry and regulatory leaders about how they are responding to these forces.

Following the movie, the hosts have asked me to give a brief presentation on Maine's portfolio of energy resources and to answer questions from the audience.  I'm looking forward to the event!

Solar, geothermal led new US capacity in January 2014

Friday, March 7, 2014

Solar and geothermal resources led the new utility-scale electric generating capacity installed in the U.S. in January 2014, according to a report by the staff of the Federal Energy Regulatory Commission.  In all, the report identified 325 megawatts of new generation placed in service in January, substantially all of which is powered by renewable resources.

Old Faithful Geyser erupts in Yellowstone National Park -- a natural geothermal feature.

Solar power contributed the largest share of new generating capacity installed in January, with 287 megawatts of solar projects placed in service.  The largest project, Exelon Corp.'s Antelope Valley Solar Phase II expansion project in Los Angeles County, California, added 130 megawatts of capacity to an existing 230 megawatt project.  The power generated is sold to Pacific Gas and Electric under long-term contract.  Other large new solar projects include MidAmerican Solar’s 61 MW Topaz Solar Farm Phase III expansion project in San Luis Obispo County, California, and two 20 MW projects (Duke Energy Corp.’s Dogwood Solar Power project in Halifax County, North Carolina, and NextEra Energy Inc.’s Mountain View Solar project in Clark County, Nevada).  All of these projects rely on long-term power purchase agreements with utilities.

Geothermal steam power was the second largest category of new electric generating capacity placed in service in January 2014, in the form of Gradient Resources Inc.’s 30 MW Patua Hot Springs Geothermal project in Lyon County, Nevada.  As with the solar projects described above, the power generated by the Patua Hot Springs project is sold to a utility -- in this case, Sacramento Municipal Utility District, under a long-term contract.

Rounding out the new capacity installations in January were 3 small biomass units with a combined capacity of 3 megawatts, and one wind project with an installed capacity of 4 megawatts -- Consolidated Edison Inc.’s 4 MW Russell Point Wind Farm project in Logan County, Ohio.

Despite this growth in solar and geothermal power resources, together these resources account for just over 1% of the nation's total installed operating generating capacity.  Yet the relative growth in solar and geothermal power over the past years has been striking, and is expected to continue for the near term.  Will these resources soon play a larger role in the nation's energy portfolio?

Voluntary renewable power markets small but growing

Friday, November 15, 2013

Electricity generated from renewable energy resources continues to grow its share of the U.S. market, according to a recent U.S. governmental report.  While most renewable energy sales are motivated by renewable portfolio standards -- state laws requiring utilities to source specified amounts of energy from renewable resources -- a small but growing amount of electricity is sold in voluntary green power markets.

Consumer demand for renewable-sourced electricity has led to voluntary markets in which consumers and institutions voluntarily purchase renewable energy to meet their electricity needs.  These markets include green power offers, competitive supplies, and over-the-counter renewable energy certificate (REC) sales.  According to the National Renewable Energy Laboratory's report, Status and Trends in the U.S. Voluntary Green Power Market, in 2012 voluntary retail sales of renewable energy represented approximately 1.3% of total U.S. electricity sales, or about 48 million megawatt-hours.  According to NREL, these sales represent the power produced by about 17,000 megawatts of installed renewable capacity.

While the voluntary renewable electricity market remains relatively small in absolute terms, it is growing rapidly.  NREL's report found that from 2010 to 2012, total green power market sales increased by 36%, for a compound annual growth rate of 1%.

In 2012, the resource mix supplying renewable energy to the voluntary renewable market was dominated by wind energy, at 80.1% of total green power sales.  Other resources in the mix include landfill gas and biomass (12.8%), hydropower (6.2%), solar (0.6%), and geothermal (0.3%). Like the entire voluntary market itself, solar power is a small but growing segment, experiencing a tripling of market share between 2010 and 2012.

For now, despite its recent growth, voluntary retail sales of renewable energy represent a small fraction of power sold.  The vast bulk of renewable energy is sold in compliance markets, established pursuant to state renewable portfolio standards or targets.  Will voluntary markets continue to grow?  How will proposals to increase state standards affect the voluntary markets?

Master Limited Partnerships for clean renewable energy

Thursday, April 25, 2013

An organizational structure called Master Limited Partnerships has the potential to increase private-sector investment in clean energy. Master Limited Partnerships, or MLPs, benefit from a tax structure under which investors are taxed as partners but can trade their ownership stakes on securities exchanges much like corporate stock. Newly proposed federal legislation could extend this treatment to clean energy technologies.

MLPs offer their investors an attractive combination of tax advantages and liquidity. Profit from most publicly traded corporations is taxed twice, at both the corporate level and the shareholder level. By contrast, income from MLPs is taxed only at the shareholder level because it is treated as a partnership for tax purposes. Like Real Estate Investment Trusts or REITs, MLPs thus combine the tax benefits of a limited partnership with the liquidity of publicly traded securities.

Under federal law, MLP treatment is limited to enterprises generating at least 90 percent of their income from qualifying sources. These generally involve the use of natural resources, such as the production, processing or transportation of petroleum, natural gas, coal, timber, and other minerals. Since 1981, the use of the MLP structure has grown; estimates suggest that over 100 MLPs are currently being traded on major exchanges, with a total market valuation of about $445 billion.

Yesterday Congress introduced proposed bipartisan legislation that would extend this tax structure to clean energy technologies. The Master Limited Partnerships Parity Act, formally known as S.795: A bill to amend the Internal Revenue Code of 1986 to extend the publicly traded partnership ownership structure to energy power generation projects and transportation fuels, and for other purposes, is sponsored by Sen. Chris Coons, D-Del., along with co-sponsors Sens. Jerry Moran; R-Kan., Debbie Stabenow, D-Mich.; and Lisa Murkowski, R-Alaska. It has been referred to the Senate Committee on Finance.

The Master Limited Partnerships Parity Act would significantly broaden the scope of projects eligible for MLP treatment to include clean energy resources and infrastructure projects. These projects would include any energy technologies that qualify for the federal production tax credit or investment tax credit, such as wind, closed and open loop biomass, geothermal, solar, municipal solid waste, hydropower, marine and hydrokinetic, fuel cells, and combined heat and power. The bill would also open the MLP structure to advanced transportation fuels such as cellulosic, ethanol, biodiesel, and algae-based fuels, as well as energy-efficient buildings, electricity storage, carbon capture and storage, renewable chemicals, and waste-heat-to-power technologies.

Proponents hope that the act would stimulate investment in clean energy projects much as it has worked for other extractive natural resource infrastructure. At the same time, concern over the federal budget calls for serious consideration of measures that would reduce federal tax revenues. So far, the bill seems to have broad support and little outspoken opposition. If enacted, it could lead to an influx of investment capital into renewable and clean energy technologies.

From brownfields to renewable energy sites

Wednesday, November 14, 2012

Contaminated lands, landfills, and mine sites are increasingly being used as sites for renewable energy projects.  For example, many landfills may be suitable for siting solar photovoltaic panels.  Former industrial sites with subsoil contamination may not be suitable for redevelopment with buildings, but may be able to host solar or wind-based electric generation.  According to the U.S. Environmental Protection Agency, renewable energy systems have been installed at 60 such sites in 25 states.  What is the future of this trend?
 
EPA policy encourages renewable energy development on current and formerly contaminated land and mine sites when it is aligned with the community’s vision for the site.  Under EPA's RE-Powering America's Land initiative, EPA identifies the renewable energy potential of these sites and provides resources for communities, developers, industry, state and local governments.

An EPA report released earlier this month describes 60 renewable systems installed on potentially contaminated lands, landfills, and mine sites.  Of these, the majority (49) generate electricity through solar photovoltaic technology.  Seven generate electricity from the wind; biomass, geothermal, hydropower, and combined solar/wind round out the count.  Together, these resources provide 184.7 MW of electric generation capacity.  Most sell their power into the wholesale market, while some use the power on-site.

Host sites are split among private, federal, municipal, and state ownership.  Sites include those regulated under EPA's Comprehensive Environmental Response, Compensation, and Liability Act program (CERCLA, or Superfund), EPA's Resource Conservation and Recovery Act program (RCRA), brownfields, and landfills.

Many more potential sites exist.  Thousands of properties across the country face redevelopment challenges from contamination.  The country is home to over 3,000 active commercial landfills and 10,000 municipal landfills.  While not all may be suitable for renewable energy development, the concept offers the opportunity to create a revenue stream from property otherwise limited in use and saddled with environmental liabilities.  This revenue could be used for remediation of the sites' contamination, as well as for other purposes.  The trend of developing renewable energy facilities on contaminated lands, landfills, and mine sites is likely to continue for the foreseeable future.

Flow chart of 2011 US energy use

Tuesday, November 13, 2012

A flow chart released by the Lawrence Livermore National Laboratory illustrates the sources and uses of energy in the United States.  It depicts information about all the energy sources used to power society, as well as the breakdown of how that energy is used - or wasted - in electricity generation, transportation, residential, commercial, and industrial contexts.


On the energy source side, petroleum - oil, gasoline, and similar products - provides the largest share of the energy we consume, slightly more than a third of total energy.  Natural gas comes in second, providing about a quarter of total energy, with coal coming in at another 20%.  Altogether, these fossil fuels provided about 82% of the energy consumed in the U.S. in 2011.  Nuclear power provided about 8% of the energy used.  The remainder came from renewable resources including biomass, hydropower, wind, geothermal, and solar.

About 40% of the energy from these sources was used to generate electricity.  The remainder was used directly for other purposes such as transportation, heating, and industrial processes.

On the use side, transportation consumed the largest share of energy, about 28%.  The industrial sector consumed another 24% of the energy.  Households consumed about 11%, and commercial businesses consumed about 9%.

This analysis of energy use leaves about 27% of the energy unaccounted for.  This energy was consumed in the generation of electricity, but was "rejected", meaning that it could not be captured for a useful purpose.  Waste heat being emitted from a generator is a classic example of this rejected energy.  End users from industry to residences also waste or reject energy; in fact, according to the chart, 57% of the total energy consumed in the U.S. in 2011 was rejected, while only 43% was put to a useful purpose.

Community-based renewable energy in Maine

Friday, December 30, 2011

An innovative program in Maine seeks to facilitate the development of community-based renewable energy projects.  The program offers significant incentives for the development of qualified electric generation projects of up to 10 MW in size.

In 2009, the Maine legislature enacted a law establishing the Community-Based Renewable Energy Pilot Program to encourage the sustainable development of community-based renewable energy.  By community-based, Maine's program targets locally-owned community-scale projects (as opposed to large-scale renewable projects owned primarily by out-of-state entities).

Under the program, qualified renewable energy projects can receive significant incentives including a long-term contract to sell the facility’s output to a Maine transmission and distribution utility for up to 20 years at average prices up to $100 per MWh (equivalent to 10¢ per kWh). This incentive is attractive because not only can the contract prices be above average market prices, but also the long-term power purchase agreement makes projects easier to finance by enhancing revenue certainty.

Eligible projects can apply to the Maine Public Utilities Commission for certification as community-based renewable energy projects. This process involves making public filings, negotiating with Commission staff, and demonstrating that the project meets the program’s qualification requirements. These include restrictions on resource type, nameplate capacity, and ownership.

Under the pilot program, eligible resources include:
  • fuel cells
  • tidal power
  • solar energy
  • wind systems
  • geothermal systems
  • hydroelectric generators
  • generators fueled by landfill gas
  • biomass generators whose fuel includes anaerobic digestion of agricultural products, byproducts or wastes.
Each individual project must not exceed 10 MW in nameplate capacity. Projects must also be primarily locally owned, meaning that 51% or more of the facility must be owned by Maine residents, governmental entities, businesses, or other qualifying local owners.

Once certified, a qualified project can choose either of two incentives: a long-term contract for the output of the facility with a transmission and distribution utility, or a renewable energy credit (REC) multiplier giving a 50% bonus in the amount of RECs produced.

To date, most have viewed the long-term contract as the more attractive option. Under this incentive, projects meeting the program’s requirements can obtain a contract at a fixed or variable price, provided that two criteria are met. First, the average price per kilowatt-hour must not exceed 10 cents. Second, the cost of the contract must not exceed the cost of the project plus a reasonable rate of return on investment as determined by the Commission. These contracts may be approved for up to 20 year terms.  Projects smaller than 1 MW can contract directly with the utility, while larger projects go through a competitive process held periodically by the Commission.

What will 2012 bring for Maine's community-based renewable energy pilot program?

October 6, 2010 - solar panels on the White House

Wednesday, October 6, 2010

While in Portland yesterday, I walked past the 41000 square foot Evie Cianchette building on Commercial Street, where I saw this plaque.

Evie Cianchette plaque

Not bad!


Speaking of building energy sustainability: whether through the efforts of Bill McKibben or otherwise, President Obama has decided to install solar panels on the White House after all.  We can expect a competitive solicitation in the coming months to select a vendor to provide and install somewhere between 20 and 50 solar panels.

August 4, 2010 - House CLEAR Act; Monhegan energy

Wednesday, August 4, 2010

One of the dominant forms of energy on Monhegan Island, Maine: propane tanks.  About 10 miles offshore, Monhegan does not have any electric cables to the mainland, relying instead on a 300-kilowatt diesel generator. For home heating, cooking, lighting and even refrigeration, many island residents still use propane.  Monhegan is also considering wind resources.

On July 30, 2010, the House of Representatives passed H.R. 3534, the Consolidated Land, Energy, and Aquatic Resources (CLEAR) Act by a vote of 209 to 193.  Much of CLEAR came from the previous Blowout Prevention Act of 2010 (H.R. 5626) (things like requiring blowout preventers, CEO accountability, etc.)

CLEAR also does the following:

  • Shifts around Dept of Interior agencies (abolishes the Minerals Management Service)
  • Reforms Outer Continental Shelf Lands Act and Federal Onshore Oil and Gas Leasing Program to protect environment and safety, and to repeal certain royalty relief and royalty-in-kind provisions
  • Reforms oil and gas royalties.
  • Full funding for the Land and Water Conservation and Historic Preservation Funds.
  • Alternative energy development, specifically leasing federal land for commercial wind and solar leasing program.  The Bureau of Land Management and US Forest Service can lease land for commercial wind and solar projects.  It has a transmission savings provision ("Nothing in this title shall affect the authority of a Federal agency to issue right-of-way grants for electric transmission facilities.")
  • Coordination and planning.  Better interagency coordination on the use of Federal energy resources.
  • Geothemal production expansion.
  • Conservation fee on all oil and gas leases on Federal onshore and offshore lands.  $2 per barrel of oil, 20 cents per million Btu of gas, sunsetting in 2021.