The World's #1 Renewable Energy Network for News, Information, and Companies.
Untitled Document

Putting Damaged Land To Good Use

I was reading an article recently about mountaintop removal (MTR) coal mining and got to thinking: How many square miles have been cleared in Kentucky for MTR? And, if we covered that space with photovoltaic (PV) solar panels, how much electricity in kilowatt-hours (kWh) would be produced? Would it be enough to match the electricity consumed in Kentucky each year?

What about MTR in the U.S.? If we covered all the square miles that have been cleared for MTR in the U.S. with PV solar panels, what percentage of the national annual kWh consumption could be provided?

I decided to crunch the numbers and what I discovered was quite intriguing.

According to the Appalachian Voices (a non-profit committed to protecting the land, air and water of the central and southern Appalachian region), 574,000 acres (897 square miles) of land in Kentucky has been surface mined for coal and more than 293 mountains have been severely impacted or destroyed by MTR coal mining.

According to the U.S. Department of Energy, the total electricity consumption in Kentucky (residential, commercial and industrial) in 2005 was 89,351,000,000 kWh.

The following projection is based on experience from PV solar installations already in place here in Kentucky and from the fact that we get four and a half hours of sunlight per day on average, accounting for clouds. To produce that much electricity in one year from PV solar panels in this region, around 190 square miles of land would need to be covered by a 69.1 GW (gigawatt) solar array. And, 897 square miles of land has been has been flattened by MTR. Therefore, if we merely put PV solar panels on 1/5th of our already cleared land, we would supply ALL of the electricity needs for the entire Commonwealth of Kentucky!

If we covered the entire 897 square miles of cleared MTR space in Kentucky, we could supply nearly 10% of the electricity needs of the entire U.S.!

Additionally, according to Appalachian Voices, a total of 1,160,000 acres (1,813 square miles) of land has been surface mined for coal in the central and southern Appalachian region.

According to the Central Intelligence Agency, the United States consumed a total of 3.873 trillion kWh of electricity in 2008.

To produce that much electricity in one year from PV solar panels in this region, 8,225 square miles of land would need to be covered. Accordingly, roughly 22% of the electricity consumed in America could be provided by PV solar panels if the 1,813 square miles of land cleared by MTR in Appalachia were covered.

At this point, you're probably asking yourself: that's great, but how much would it cost? And, what about energy storage so we can use that electricity at night?

I'll admit that projecting the costs for a solar array of this size if pure conjecture, but I'll do my best.

Currently, large scale, megawatt PV solar panel arrays cost around $3 per watt to install without tax subsidies. A GW scale solar array might be closer to $2 per watt installed. Using this metric, it would cost about $138 billion to install the 69.1 GW solar array required to produce 100% of the electricity consumed in Kentucky per year. If the solar panels have the industry standard 25-year warranty, the cost of electricity comes to 6.2 cents per kWh. That's cheaper than what consumers in Kentucky pay for electricity right now (e.g. LG&E residential customers pay 7.9 cents/kWh).

There are many options available now for grid level energy storage, including, but not limited to: pumped hydro, compressed air energy storage (CAES), sodium-sulfur batteries, lead acid batteries, nickel-cadmium batteries, flywheels, and lithium ion batteries.

Germany is considering using empty, abandoned coal mines for pumped hydro energy storage for renewable energy systems. I would assume we have plenty of these in Kentucky.

Energy storage could cost an additional $1 per watt for each solar array. In Kentucky, this would increase the cost of the array to $207 billion with an electricity cost of around 9.3 cents per kWh. That price per kWh is a little above what LG&E customers are paying right now, but will soon be on par with current rates as LG&E recently requested the Kentucky Public Service Commission to allow rates to increase by 19 percent over the next five years.

Again, the cost projection is all conjecture and does not include grid transmission and maintenance. But it's a start.

This sounds like a lot of money until you consider that, according to a study by the Environmental Law Institute, the fossil fuel industry in the U.S. received $72 billion in subsidies from 2002 to 2008. Imagine using that money to fund a GW solar project in Kentucky.

Untitled Document

Get All the Renewable Energy World News Delivered to Your Inbox

Subscribe to Renewable Energy World or email newsletter today at no cost and receive the latest news and information.

 Subscribe Now

RELATED ARTICLES

Electricity Deregulation

Japan Electricity Deregulation: Birth of Municipally Owned Electric Utilities

Junko Movellan, Correspondent The upcoming retail electricity deregulation in Japan will create a way for Japanese municipal governments to produce...
Solar panel

REC Joins O Capital in Egypt to Tap Solar Panel Market in Middle East, Africa

Anna Hirtenstein, Bloomberg REC Solar ASA has signed a deal with O Capital, the renewable energy arm of Orascom Telecom Media and Technology Hold...
Solar PV

OneEnergy Seeks Authority to Build 6 MW Solar PV Facility in Southern Maryland

Jennifer Delony OneEnergy Renewables is seeking regulatory approval in Maryland to build a 6 MW solar PV facility in Somerset County,...
Solar water heating

California Regulators Propose Expansion of Eligibility Requirements for Solar Water Heating Program

Jennifer Delony The California Public Utilities Commission has proposed expanding the eligibility requirements for customers seeking ...

PRESS RELEASES

Canadian Solar Wins Five Solar Power Projects Totaling 185 MW in Brazil

These power projects were won under a 20-year Power Purchase Agreement (PPA) with the B...

$100 Off of 5-day Advanced PV Project Experience. Download a Topic Schedule.

Assemble, ground, energize, and commission a complete grid-tied SolarEdge system from s...

Former Australian Prime Minister Kevin Rudd talks politics of fear vs. politics of hope

Rudd, who led the Australian parliament from 2007 to 2010, told the Summit audience tha...

Intersolar AWARD „Solar Projects in India“ – Applications being accepted until September 18

The Intersolar AWARD in the category Solar Projects in India honors projects in the fie...

FEATURED BLOGS

Washington, DC Bridges the Solar Gap

The District of Columbia has enjoyed 15 years of strong economic growth. But prosperity is spread unevenly across the...

Sell Through Hypothesis

You first learned to hypothesize, or make educated guesses, in grade school science class. Now it’s time to ref...

Cronimet / THEnergy study: In solar for mines size does not always matter - Reducing CAPEX with energy efficiency and load shifting

Munich, September 2015. Mining companies are constantly gaining interest in solar solutions because frequently solar ...

Final Program Now Available for GRC Annual Meeting & GEA Geothermal Energy Expo

GRC Annual Meeting & GEA Geothermal Energy Expo - Final Program from

FINANCIAL NEWS

Dan Hofmann is President and Owner of RegenEn Solar LLC, a PV solar panel installation company in Louisville, KY launched in March 2009. Photo Credit: Dan Hofmann outside a home on Village Drive where he installed thin-film solar. (Photo court...

CURRENT MAGAZINE ISSUE

Volume 18, Issue 4
1507REW_C11

STAY CONNECTED

To register for our free
e-Newsletters, subscribe today:

SOCIAL ACTIVITY

Tweet the Editors! @jennrunyon

FEATURED PARTNERS



EVENTS

Successfully Integrating Solar: A Proactive Approach

•      What does the increasing solar penetrati...

Presenting at PV Insider O&M Conference

Charles Pimentel, COO of Solar Frontier Americas will be presenting on t...

Solar Frontier Offsite Office at Solar Power International (2 mins....

Solar Frontier will be hosting an offsite meeting room offering our gues...

COMPANY BLOGS

Sell Through Hypothesis

You first learned to hypothesize, or make educated guesses, in grade sch...

Vacancy? No Problem!

Have you ever tried to sell an efficiency product or service to a prospe...

Going The Extra Mile

Selling efficiency takes perseverance, creativity, and a willingness to ...

NEWSLETTERS

Renewable Energy: Subscribe Now

Solar Energy: Subscribe Now

Wind Energy: Subscribe Now

Geothermal Energy: Subscribe Now

Bioenergy: Subscribe Now  

 

FEATURED PARTNERS