Category Archives: Environment

Anyone Remember the Coal Ash De-watering Controversy?

Bremo Power Station de-watering test results. Click for legible image.

Environmental controversies are flying so fast and furious in Virginia these days that it’s hard to keep track of them all. As for last year’s disputations, they are quickly forgotten. Remember, for instance, the wrangling over Dominion Energy’s plans for de-watering coal ash ponds at its Bremo and Possum Point power stations?

After intense negotiations, riverkeeper groups, the Southern Environmental Law Center, Dominion, and the Department of Environmental Quality settled upon a protocol for treating and monitoring the quality of effluent before it entered the James River and Quantico Creek. How has the arrangement worked out? The absence of headlines this year is one clue. The water-testing results posted on Dominion’s website provide another.

The tests, which cover pH, suspended solids, oil & grease, hardness and 15 heavy metals and other compounds, show that the water treatment process is cleaning the water to the point where the presence of most pollutants is impossible to detect.

At the Bremo station, only arsenic and chloride appeared in measurable quantities among the three samples taken in early May, and the concentration of both chemicals is less than one-tenth of the Environmental Protection Agency’s permit levels.

Possum Point power station de-watering test results. (Click for larger image.)

At Possum Point, five chemicals appear in large enough quantities to be detectable, but all are safely within prescribed bounds. One chemical, thallium, nudges up close to the permit limit but does not go over.

I don’t purport to have any expertise in these matters, but it looks as if the arrangement is working as it should. If you want to browse through a year’s worth of test results, click here.

This is far from the end of the story, of course. Dominion still must obtain permits for de-watering its Chesapeake and Chesterfield facilities. The results at Bremo and Possum Point suggest that Dominion has the de-watering process firmly under control.

However, the company has yet to receive solid-waste permits for disposing of the coal ash after it has been de-watered. Dominion wants to pursue a cap-in-place approach while environmental groups want the utility to bury the material in landfills. That issue will take longer to resolve. Among the uncertainties is determining the extent to which underground water picks up contaminants while migrating through the coal ash pits. Getting answers will require a different testing protocol than the one used for the de-watering process.

The Nightmarish Complexity of Environmental Regs

As far as I’m concerned, the environmental regulatory process governing the proposed Atlantic Coast Pipeline and Mountain Valley Pipeline is incomprehensible. And that’s a bad thing. If only a handful of regulators, industry players and environmentalist activists can navigate the layers of bureaucracy and thicket of rules, the public is the loser.

In the latest hoo-ha, the Department of Environmental Quality (DEQ) has back-tracked on public statements regarding how it will regulate erosion and sediment control of pipeline construction crossing steep mountain slopes.

On April 6, DEQ issued a press release stating that “in addition to utilizing the U.S. Army Corps of Engineers nationwide permit 12 for wetland and stream crossings, DEQ will be requiring individual 401 water quality certifications for each project.” The next day, DEQ issued another press release stating that the department “has provided water quality certification for the U.S. Army Corps of Engineers 2017 Nationwide Permits.”

Got that? Me neither.

Needless to say, that bureaucratese is unintelligible to the normal human being, and even to spokesmen and reporters whose job it is to translate the gobbledygook. In response to inevitable media inquiries asking what the April 16 press release meant, DEQ spokesman Bill Hayden said that DEQ would require certifications for each individual pipeline segment that crossed or affected any waterway. That meant hundreds of certifications. That is what the Richmond Times-Dispatch understood, what the Roanoke Times understood, and what I understood.

But DEQ Director of Operations James Golden is now saying that Hayden had spoken before he had been briefed by “technical” staff members at DEQ. (So explains the Times-Dispatch today.) DEQ will rely upon a U.S. Army Corps of Engineers national permit. Rather than duplicate the Army Corps’ work, Golden told the T-D, the state’s individual certifications will focus on “upland areas” outside the Army Corps’ jurisdiction.

Asked why DEQ took nearly seven weeks before correcting the widely published remarks, Golden conceded that “in hindsight, DEQ should have tried to provide additional clarity.”

DEQ’s statements never added up to environmental groups, and they made an issue of the seeming discrepancy between the April 16 and April 17 press releases. After endeavoring to understand what it all meant, I headlined the resulting post, “A Brain-Frying Foray into the Regulatory Maze.” In what was surely one of the least-read articles in the history of Bacon’s Rebellion, I tried to sort through the difference between 401 certifications and Permit 12, general permits, individual permits, blanket permits and more. (I never got around to explaining 404 permits, which are relevant somehow.)

Despite the fact that I tediously double-checked information in the article before publishing, I still got stuff wrong — or so says David Sligh with the Dominion Pipeline Monitoring Coalition, a former regulator himself. But I found his correction so incomprehensible that I just appended it whole to the post, and let readers figure out what it meant.

Bottom line: I don’t think harshly of Hayden for disseminating inaccurate information. He was probably as confused as I was. (Well, not that confused. But pretty confused.) Where DEQ fell down was in not correcting the inaccuracies when they began circulating in the media. Frankly, the fact that they didn’t do so makes me wonder if DEQ officials above Hayden knew exactly what was going on.

One conclusion seems unavoidable: When the regulatory system is so full of jargon, is so complex and has so many interlocking pieces that career administrators of DEQ can’t communicate the story accurately to the public, something is wrong with the system.

Where Is Politifact When You Need Them?

“Democracy dies in darkness,” declares the tag-line of the Washington Post, which poses as a defender of the country from fake news peddled by the Trump administration. Perhaps the newspaper should consider fact-checking content on its Opinion page as well.

Mike Tidwell, director of the Chesapeake Climate Action Network (CCAN), and LaDelle McWhorter, chairperson of Virginia Organizing, are certainly entitled to the opinions they expressed in a Washington Post op-ed last week. But someone should call them to account for loose and unsubstantiated assertions they made…. and I’m doubting the Post will do it.

The thrust of their op-ed is to explain why Dominion Energy, the “all-powerful corporation that has ‘owned’ Richmond for decades,” has become a political liability, mostly among Democratic Party candidates for office. In short, they declare that Dominion has behaved in a beastly manner to the environment. To be sure, Dominion has stirred up controversy as it re-engineers its infrastructure to replace coal with natural gas. Critics have raised some legitimate concerns regarding the Atlantic Coast Pipeline, coal ash disposal and electric transmission lines, among other projects. But the issues are complicated. Tidwell and McWhorter don’t do nuance.

Let’s look at four of the more egregious statements.

Dumping liquid coal ash. “Dominion … has dumped highly controversial coal ash liquid into major Virginia rivers (the James, tributaries of the Potomac, the Elizabeth).”

To say that Dominion “dumped” coal ash liquid implies an indiscriminate release of polluted water. Before the enactment in 2015 of new Environmental Protection Agency regulations governing coal ash disposal, Dominion did periodically release rainwater that had accumulated atop coal ash ponds but did not mix with the combustion residue, as permitted by state and federal law. Since then, the company has run rainwater as well as water from the coal-ash slurry through a water-treatment process that reduces pollutants to levels well below EPA limits — indeed, in many cases, to undetectable levels.

That system is working well. Environmental groups, which had a hand in negotiating the rules detailed in a Department of Environmental Quality permit, have not filed any legal complaints regarding the de-watering process at the Bremo Bluff Power Station. A judge struck down a complaint filed at Possum Point. Dominion has not yet begun de-watering its Chesterfield or Chesapeake power stations.

Coal ash burial. “The ash, which has accumulated from decades of coal combustion at nearby Dominion power plants, is already suspected in places to be leaking highly toxic substances into the rivers.

CCAN doesn’t come right out and assert that Dominion coal ash ponds leaked toxic substances into rivers. It says Dominion is “suspected” of leaking. And, technically, that’s accurate because environmental groups do, in fact, suspect that leaks have occurred. What’s missing from the statement is critical context.

For example, in a federal lawsuit, Sierra Club attorneys demonstrated that underground water has migrated through ponds at the Chesapeake power station, picked up contaminants, and emptied into the nearby Elizabeth River. But the presiding judge also found that the volumes were so small and were diluted by such a large volume of river water that the metals posed no danger to aquatic life or human health.

The toxicity of a chemical compound depends upon its concentration. Oxygen, which is essential to human and animal life, also is toxic at elevated percentages and pressures. Likewise, heavy metals that leach from coal ash are “toxic” in the sense that they can be harmful to human and aquatic life above certain levels but are non-toxic below those levels. Some of these “toxic” chemicals are required to sustain human life. For example, according to Wikipedia, zinc, one of the heavy metals leached from coal ash, “is an essential component of a large number (>300) of enzymes participating in the synthesis and degradation of carbohydrates, lipids, proteins, and nucleic acids as well as in the metabolism of other micronutrients.”

The fact that a “highly toxic” substance has leaked into the water in is, by itself, meaningless, and the use of such language is designed to scare rather than enlighten.

North Anna 3. “Adding to Dominion’s unpopularity is its desire to build a $19 billion (yes, with a “b”) nuclear reactor at its North Anna plant. Attorney General Mark R. Herring (D) says it’s unneeded and a bad deal for consumers.”

Dominion does not “desire” to build a third nuclear unit at the North Anna Power Station. The company has spent vast sums keeping open the option to build another nuclear unit should circumstances prove necessary. In its 2017 Integrated Resource Report, Dominion offered eight possible economic and regulatory scenarios framing energy usage over the next 15 years. In only one of those scenarios — the one that cracks down the hardest on carbon emissions, requiring the closure of the Mecklenburg and Clover coal-fueled power stations (577 megawatts of capacity) — does Dominion envision the need for another nuclear unit to maintain base-load capacity. But given the fact that environmental groups such as CCAN are pushing for tough restrictions on both nuclear power and CO2 emissions, that scenario cannot be ignored. Continue reading

McAuliffe Moves to Cap Utility Carbon Emissions

Governor Terry McAuliffe. Photo credit: Associated Press

Big news yesterday: Governor Terry McAuliffe issued an executive order to cap greenhouse gas emissions from Virginia power plants. Unfortunately, I’m out of town on personal business today, so I don’t have time for anything more than a cursory analysis.

Said McAuliffe in a press release: ““The threat of climate change is real, and we have a shared responsibility to confront it. Once approved, this regulation will reduce carbon dioxide emissions from the Commonwealth’s power plants and give rise to the next generation of energy jobs. As the federal government abdicates its role on this important issue, it is critical for states to fill the void. Beginning today, Virginia will lead the way to cut carbon and lean in on the clean energy future.”

McAuliffe’s press release cited the job-creation benefits that would come from a shift from fossil fuels to solar energy. Last year, as solar production took off in Virginia, the solar industry employed 3,236 workers — twice the number supported by coal. McAuliffe said also invoked sea level rise to justify his move:

Virginia is already experiencing the effects of climate change in its coastal regions due to rising sea levels. The threat from frequent storm surges and flooding could cost the Commonwealth close to $100 billion dollars for residential property alone. The impacts extend far beyond our coast, as half of Virginia’s counties face increased risk of water shortages by 2050 resulting from climate-related weather shifts.

The action now moves to the Department of Environmental Quality, which the governor ordered to write the regulations.

Bacon’s bottom line: McAuliffe’s move will generate headlines and plenty of political heat — Republicans have already announced their opposition to what they call the governor’s executive overreach — but it’s far from clear what practical impact the move will have. Acknowledging that the cost of solar energy has plummeted, Dominion Energy and Appalachian Power already have forecast that they will move heavily toward renewable energy sources over the next 25 years.

The press release spoke of a “cap” on greenhouse gases and new regulations that will “reduce” carbon emissions — not merely reduce carbon intensity (carbon dioxide emitted per kilowatt of energy produced). It is possible to reduce the carbon intensity of the electric generating fleet while allowing total carbon emissions to increase, albeit it at a much slower rate, as the economy grows. If Virginia caps carbon emissions, Dominion and Apco might be required to close additional coal-fired power stations, and it is unlikely that Dominion would build a planned gas-fired power plant in the early 2020s. Cancellation of that facility could undermine the economics of the proposed Atlantic Coast Pipeline, construction of which McAuliffe has said he supports.

Expect trench warfare between utilities, environmentalists and consumer advocates in the DEQ hearings discussing how to implement the carbon caps. Also expect General Assembly Republicans to challenge McAuliffe’s legal authority to implement a cap.

Update: Apco spokesman John Shepelwich submits the following correction: “Appalachian Power no longer operates any coal-fueled power generation in Virginia and has not since 2015. Two of the three units of our Clinch River Plant in Russell County were converted from coal to natural gas; that plant is scheduled to be retired in 2026.”

Bristol Home Builder Proposes Solar Subdivision

Developer Aaron Lilly is seeking Bristol planning commission approval to construct 30 upscale townhouses using solar power to offset electric bills. He envisions the project as the first solar-powered subdivision east of the Mississippi, reports the Bristol Herald-Courier.

The project would be built on 12.5 hillside acres near an Interstate 81 exit. The townhomes would have 1,600 square feet of living space plus a 400-square-foot garage. Units can be configured with “smart home” technology for monitoring and control that, among other benefits, can provide medical information to a caregiver. Lilly sees the houses as “age in place” residences. He intends to price the properties in the $200,000 to $250,000 range. Said Lilly:

After seeing solar was at least possible, we’ve been working on this for over a year. It is more affordable than ever before and the price of electricity goes up every year. … There would be two meters on the house – one telling how much power we consume from [Bristol Virginia Utilities] and the other how much power is produced and the person would pay the difference.

If power keeps going up and solar keeps coming down, we’re there. If we’re not there yet, we’re close enough. This is our goal and we’re working feverishly to make sure it happens. … The first ones are an experiment. We don’t know how much power we can make.

Planning commissioners were supportive of the proposal and granted preliminary approval.

Bacon’s bottom line: It’s hard to imagine that this is the first time a developer east of the Mississippi has proposed building new townhouses with solar panels on the roof. But I haven’t heard of anyone doing it in Virginia, so, who knows. If Lilly says it’s true, maybe it is. If so, good for him.

Economically, it may make more sense for home builders to install solar during the construction phase — Lilly will build nine connected units in Phase 1 — than for individual homeowners to outsource the project to solar installers one project at a time. Also, Lilly can pocket the solar credits, which might be worth more to him than to individual homeowners. Another selling point is that homeowners can amortize the construction cost over the life of a 30-year mortgage.

Home builders are always looking for a competitive edge. I’m surprised that we haven’t seen more of this kind of activity.

Shareholders Pressure Dominion on Climate Policy

At Dominion Energy’s annual meeting earlier this month, shareholders submitted numerous shareholder proposals requiring the energy giant to adopt more environmentally friendly measures. I took note of some of them in my story about the event but never bothered to inquire about the vote results. I’ve attended plenty of annual meetings in my time, and I’d never seen a shareholder proposal opposed by management approved, or even come close to being approved. I didn’t expect any differently this time.

My bad. As it turns out, 48% of participating shares voted in favor of a resolution that would require Dominion to publish an annual statement on the financial risks that climate change poses to the company, according to the Virginian-Pilot. That total was up from the 23.5% of the vote for a comparable resolution at the 2015 annual meeting.

It wasn’t just gadfly nuns and hippies owning a few shares who voted for the resolution. That many votes required heavy support from pension funds and other institutional shareholders. It’s entirely possible that a similar proposal could pass a year from now. The proposal must be taken seriously, for its sponsors surely will be back next year.

Backers of the proposal cast the issue in terms of what is best for Dominion, not environmentalists, the environment or Mother Gaia: Climate change caused by CO2 emissions is unleashing more frequent and more damaging storms, which can expose Dominion’s infrastructure to storm damage, and will engender tighter anti-carbon regulations that could endanger its multi-billion bet on natural gas electric plants and pipelines.

“The three costliest storms in Dominion’s 100-year operating history, Hurricane Isabel, Hurricane Irene and the June 2012 Derecho, have occurred in the last decade,” states the shareholder proposal in the 2016 proxy statement. “The consensus among climate scientists is that without significant reduction of greenhouse gas emissions, climate change will continue to result in more severe and frequent storms, among other effects.”

Dominion’s restoration costs were $128 million for Hurricane Isabel in 2003, $59 million after Hurricane Irene in 2011, and $42 million after the derecho. “Additionally, between 2011 and 2012, weather events, earthquakes, and environmental regulations imposed more than $450 million in costs on the company, adversely affecting its earnings.”

Also, argued a memorandum in support of the proposal, the company does not seem to be taking into account federal or state legislation that could “either mandate greater deployment of renewable energy or assess financial penalties for the continued use of fossil fuels.” Dominion could be “betting the company” that changing laws, regulation and consumer tastes won’t leave the company with billions in stranded, uneconomic assets.

“Dominion faces serious financial challenges with regard to climate change risks that are not being addressed,” says the memorandum. “Dominion should be required to provide adequate climate risk assessments, including clearly defined actions the Board intends to take to address these risks.”

Dominion responds. Dominion management advised shareholders to vote against the proposal. Committed to being a good environmental steward, Dominion is pursuing an integrated strategy to reduce greenhouse emissions based on a diverse fuel mix, including gas, nuclear, hydro, wind and solar, the company stated. Between 2000 and 2015, the company has reduced the carbon intensity of its generating fleet by 43%, and it has forecast that carbon intensity will fall another 25% as it expands solar production to 5,200 megawatts over the next 25 years.

Dominion says it is one of the lowest carbon-intensity electricity producers in the U.S. Producers at the lowest end of the scale are pure-play renewable companies.

Also, the company responded in the proxy statement, it already reports on financial risks relating to climate change in its 10-Q forms and in its Citizenship & Sustainability Report. Three years ago, it published the “2014 Dominion Greenhouse Gas Report.”

As for the charge that Dominion isn’t taking into account the potential for tighter carbon emissions, in remarks made during the shareholders meeting, CEO Tom Farrell said that carbon regulation is coming. While some politicians have suggested that the Trump administration will roll back the Obama administration’s Clean Power Plan, Farrell said that the EPA is legally required to regulate CO2 emissions, and that a McAuliffe administration study group will come out with state-level recommendations in June.

Bacon’s bottom line: One can argue with the premises of the shareholder proposal, but it really doesn’t matter if the authors are right or wrong in their particulars. What matters is whether shareholders owning a majority of shares believe they are right. If a few more shareholders agree, joining those in the 48%, they could push through their proposal a year from now.

Farrell Defends Dominion’s Environmental Record

Dominion CEO Tom Farrell

Under continual pressure from politicians, protesters and even shareholders to develop more renewable energy, Dominion Energy (which has changed its name from Dominion Resources) offered a vigorous defense of its environmental policies at its 108th annual meeting in downtown Richmond today.

Since 2000 the company has cut nitrogen-oxide emissions 81%, sulfur dioxide emissions 95% and mercury emissions by 96% — a performance exceeded by only one other electric utility in the country, CEO Thomas F. Farrell II told shareholders.

Dominion also has reduced the carbon intensity of its electricity by 43% between 2000 and 2015, Farrell said. Carbon intensity measures the pounds of carbon-dioxide (CO2) emissions per megawatt hour of electricity produced. Dominion’s performance compares to a 23% reduction for the electric utility industry as a whole.

Carbon intensity will fall another 25% as Dominion expands solar power generation to a projected total of 5,200 megawatts within 25 years. “Solar is growing very rapidly,” Farrell said. I know that a lot of folks would like all of our power to come from renewables. That’s not realistic. That’s not affordable.”

Of greater interest to most of the shareholders in attendance, Dominion reported an 11.8% increase in earnings in 2016 and an 8.1% increase in dividends. But numerous shareholders, some owning as few as one or two shares, lined up to take the microphone during a Q&A session. They pressed for changes to Dominion’s governance practices, urged more aggressive adoption of solar power, and chastised the company for construction of the Atlantic Coast Pipeline (ACP).

Several shareholders argued that Dominion should reduce its corporate exposure to environmental risks, especially those resulting from severe weather or drastic regulatory changes implemented in response to climate change. One formal shareholder proposal recommended the company nominate a director with environmental expertise; another asked Dominion to evaluate alternate technologies as a way to comply with Paris Agreement accords to cut CO2 emissions. All shareholder proposals were voted down.

Farrell unapologetically defended the company’s environmental record, citing its achievements to date and its plans for the future.

Dominion was one of only four electric utilities to file a brief in favor of the Obama administration’s controversial Clean Power Plan, Farrell said. The plan, the status of which is now up in the air under the Trump administration, mandates major cuts to electric-utilities’ CO2 emissions, although the amount would vary depending upon how each state implements the plan.

While some have suggested that the Trump administration will scuttle the Clean Power Plan, Farrell insisted that carbon regulation is here to stay. An EPA endangerment finding, upheld by the U.S. Supreme Court, declared that the EPA is required to regulate CO2. “I have no idea what that’s going to look like. Neither does anyone else,” Farrell said. But some form of regulation is unavoidable.

In the meantime, a McAuliffe administration task force has been looking at the CO2 issue and is expected to announce its recommendations for the General Assembly next month. “There’s going to be carbon regulation, and to suggest otherwise just isn’t true,” Farrell said.

The carbon-regulation issue is particularly sensitive to Dominion because critics have argued for a rollback of a rate freeze put into effect two years ago in response to the Clean Power Plan. Now that the plan is likely to be overturned, they contend, the justification for the rate freeze — to provide rate stability amidst regulatory uncertainty — no longer exists.

Farrell also defended the “urgent need” for the Atlantic Coast Pipeline, a 600-mile pipeline that would bolster natural gas supplies to “grossly under-served” communities in Virginia and North Carolina. The pipeline has inspired fierce resistance from property owners along the route, especially in the steep mountains of western Virginia where environmentalists have raised concerns that construction on steep slopes and narrow ridges will lead to erosion and disruption to water fragile water supplies.

Large chunks of eastern Virginia and North Carolina have reached the limits of existing natural gas pipeline capacity, Farrell said. Furthermore, much of North Carolina is served by only one natural gas pipeline, Transco, making the region vulnerable to supply disruptions. He cited a recent outage on Transco that interrupted the gas supply to the company’s Brunswick Power Station near the North Carolina border, forcing it to halt generation temporarily. The ACP would provide an alternate pipeline to serve Brunswick and the nearby Greensville Power Station, which will be the world’s largest combined-cycle natural gas plant when construction is complete, as well as to Duke Energy power plants in North Carolina. Continue reading

McAuliffe Signs 11 Renewable Energy Bills into Law

Governor Terry McAuliffe has signed 11 solar and renewable energy bills into law.

Quasi-community solar. The most significant is SB 1393, which creates a mechanism for Dominion, Appalachian power Co. and Virginia’s electric cooperatives to sell solar-generated electricity to subscribers. While the law does not provide everything that solar enthusiasts would like, it does open up economic space for more local, small-scale solar development, and it provides consumers a green-energy option they didn’t have before.

Agricultural solar. HB 2303 and SB 1394 create a framework whereby farms can generate renewable energy and sell it to utilities.

Energy-efficiency. HB 1565 allows localities to establish “green development zones” providing special zoning and tax treatment for buildings and facilities that are deemed to be energy efficient or manufacture products beneficial to the environment.

Battery storage. SB 1258 expands the mission of the Virginia Solar Energy Development Authority to include promotion of battery storage technology.

The Fauquier Times enumerates all 11 bills here.

Electric Utilities Increasingly Open to Renewables

Graphic source: State of the Electric Utility 2017

by Thomas Hadwin

Editor’s note: Tom Hadwin submitted this article before Dominion and Appalachian Power filed Integrated Resource Plans Monday detailing forecasts of dramatically higher solar energy generation over the next 15 to 25 years.

According to a recent article in Utility Dive, U.S. electric utility concerns about integrating higher levels of renewables into the grid are declining.

Utility Dive surveyed more than 600 utility professionals in their fourth-annual State of the Electric Utility (SEU) survey. More than 80% of the respondents expect renewable energy resources to increase moderately or significantly over the next ten years in their service territories.

The lower costs of renewables and natural gas compared to other conventional generating sources are driving the trend to greater acceptance. PJM Interconnection Vice President, Mike Bryson, agrees that the very low price of natural gas and the declining price of renewable energy cause these sources to be favored over new coal and nuclear generation.

Survey respondents agree, with 62% expecting moderate or significant growth in natural gas generation, while 72% predict at least moderate coal retirements in the upcoming decade.

Southeastern states are less enthusiastic about the prospects for growth in wind resources. A majority (58%) of those responding from Southern states did not expect growth in wind generation, which might be due to the lower-than-average wind resource in the region. Advances in advanced turbine technologies might yield prices competitive with natural gas generation in the Southeast by 2025. In other parts of the country, especially the Great Plains, wind generation is often the lowest cost source of electricity today.

Texas is currently the nation’s leading wind generator with 18 GW of nameplate wind generation, with plans to add 14.5 GW more wind generation and 27 GW of solar by 2031 without any statewide Renewable Portfolio Standard. Economics are the driving force.

Utilities expect smaller scale solar will grow even faster than utility-scale facilities with 83% forecasting at least some level of growth in distributed generation solar units. This rapid build-out of solar will require other complementary technologies. Nearly 80% of the utility respondents expect moderate or significant growth in distributed and grid-scale storage units, while 81% predict more grid communication technologies and smart inverters will be required to ease grid integration of additional solar.

In last year’s survey, grid integration issues were the top concern, reported by 32% of respondents. This year, half of that number (16%), said grid integration of renewables was the most pressing problem. Instead, 35% of the utility officials indicated that since the election regulatory and market uncertainty are now the greatest concerns.

Few respondents reported concerns about transmission constraints, stranded assets, or having adequate flexible generation to cover variations in renewable output, which are issues often associated with renewable growth.

This might be due to the recent development of affordable and effective grid integration measures. A National Renewable Energy Laboratory (NREL) study confirms that higher levels of renewable energy will not disrupt system reliability. The study showed that the Eastern Interconnection, the world’s biggest power system, of which PJM is a part, can reliably add ten times more renewable generation than exists today.

Renewables then would comprise about 30% of the system capacity. The remainder would be gas, coal, nuclear, hydro and other types of generation that would provide dispatchable power to cover the variations in the output from renewable sources.

Batteries are not yet cheap enough to make solar plus battery combinations competitive with natural gas-fired combined cycle plants for base-load use. But solar plus batteries is currently cheaper than the more expensive peaking units in some regions. The batteries respond more rapidly to load fluctuations than do existing peaking units. Expected ongoing price declines will make their use more widespread. Continue reading

The Failed Mountain “Decapitation” Narrative

Schematic filed with West Virginia regulators of a two-mile stretch of the proposed Atlantic Coast Pipeline near the Virginia state line.

Schematic filed with West Virginia regulators of a two-mile stretch of the proposed Atlantic Coast Pipeline near the Virginia state line. (Click for larger image.)

Environmentalists say the Atlantic Coast Pipeline will “decapitate” pristine mountaintops in western Virginia. They have no evidence to back the claim.

Last week foes of the Atlantic Coast Pipeline (ACP) leveled their most rhetorically heated charges against the 600-mile pipeline project yet. Construction teams would have to excavate some 247,000 dump-truck loads of rock and soil as they blasted a path across steep mountains and ridge lines. Describing the “decapitation” of pristine mountains, opponents likened the process to highly destructive mountaintop removal by the coal industry.

There was just one problem. The environmentalists’ calculations were based on the assumption that the ACP would flatten a 125-foot-wide construction corridor through the mountains. That assumption was inaccurate, Aaron Ruby, a spokesman for Dominion Transmission, managing partner of the pipeline project, responded at the time. On ridge lines, the company would carve out just enough space to excavate the trench, which will be “significantly narrower” than 125 feet. Without the 125-foot assumption, the rest of the “decapitation” analysis falls apart.

Ruby’s comment seemingly constituted a devastating rebuke. But pipeline foes are sticking to their guns. Building on the “decapitation” theme, the Chesapeake Climate Action Network (CCAN) is planning a rally today in front of Governor Terry McAuliffe’s office to demand that the governor use his regulatory power to “halt Dominion’s proposed mountaintop removal plans.”

A CCAN briefing paper asserts that “the choice to build along ridgelines is part of Dominion’s preferred and deliberate design. Working on these ridgelines will require creating a wide and flat surface to allow Dominion’s earth-moving vehicles and deep-trenching machines to operate and maneuver. The federal government’s report on the environmental impacts of the pipeline declares that ‘narrow ridgetops’ [will] require widening and flattening in order to provide workspace in the temporary right-of-way.”

What proof does CCAN have to back up such claims? None at all.


ANALYSIS


In a follow-up email distributed to members of the media late last week, Rick Webb with the Dominion Pipeline Monitoring Coalition (DPMC), a CCAN ally, attached a document that included the schematic above, which Dominion had submitted in a West Virginia regulatory filing. The schematic shows an elevation profile and a top-down view of the pipeline route on a two-mile section of the proposed pipeline near the Virginia border. A report by RESPEC, a geoscience engineering consulting firm hired by Appalachian Mountain Advocates, another anti-pipeline ally, estimated that construction would remove 130,000 cubic yards of material in that one segment alone.

That report, “Atlantic Coast Pipeline and Supply Header Project Volumetric Analysis,” made several assumptions. Among them, the firm created “typical cross-sections” to facilitate the computation of the volume of excavated material. One of the four cross-sections — “Ridgeline – Steep” category (shown below) — was applied to topography located on a ridgeline with an overall slope of greater than 20%.

Source: “Atlantic Coast Pipeline and Supply Header Project
Volumetric Analysis.” (Click for larger image.)

The graphic clearly shows the assumption that the top of the ridge-line will be removed in its entirety.

But the assumption is invalid. As ACP spokesman Ruby elaborated in an email: “We will not need to grade the entire 125-foot-wide construction right of way on every ridgeline. We may need to clear the entire ROW so we have room for our equipment, but we will only grade enough space so we can safely excavate the trench and install the pipe.”

There is nothing in the Dominion schematic to contradict Ruby.

In an interview with Bacon’s Rebellion, Webb acknowledged that pipeline foes were making assumptions for the purposes of their analysis, and he shifted the burden of proof to Dominion to prove their analysis wrong.

“We’re taking the information we have and saying, ‘It can be this bad,'” said Webb. “If Dominion says this is an exaggeration, show us the details to prove otherwise. Informed decisions can’t be made,” he added, until more information is made available.

Dominion has yet to file detailed construction plans for the route, Webb said. “The only detailed plans in Virginia we’ve seen is a one-tenth of a mile section in Highland County using high-tensile steel mesh nailed into the ground with six-foot nails. We want to see what they’re planning to do with the rest of the pipeline. Dominion has presented a concept. … We want to see solutions now.”

It’s one thing for pipeline foes to demand Dominion to make more information available to the public. It’s a very different thing to claim that the company intends to engage in mountaintop decapitation with devastating environmental consequences. Dominion insists that it won’t, and pipeline opponents have offered no tangible evidence to indicate otherwise. Perhaps proof will turn up in future filings to support their view. But it hasn’t yet, and pipeline foes undermine their credibility by trumpeting claims with no basis in demonstrated fact.