Rural Electrification with Renewable Energy Micro-Grids

Pilot Programs to Provide Research of Renewable Energy Solutions for Improved Air Quality  

New Delhi, India— November 19, 2018—ENTRADE and Tata Powered Delhi Distribution Limited (Tata Power-DDL) has commissioned a waste-to-energy testing pilot in conjunction with solar and battery storage research and development at its Rohin-Delhi grid station test facility in New Delhi. Please see video of the Tata Power-DDL pilot currently underway . 

Speaking on the launch of the testing facility, Mr. Praveer Sinha CEO & MD Tata Power said “Rural Electrification is the catalyst to bring economic growth and meeting the socio-economic goals of people living in rural communities. TATA Power is implementing renewable microgrid solutions across rural India. These Microgrid solutions run using Solar systems, Battery storage and Biomass Generation as a novel concept to promote renewable energy. We look forward to this collaboration of Tata Power and ENTRADE in promoting green, affordable and sustainable rural micro-grid power Generation solutions in India.” 

“We started it as an R&D project and soon found that it has a big potential in the rural market particularly for offering inexpensive and sustainable rural micro-grid solutions. The combination of organic waste coupled with solar and battery storage to generate clean energy offers excellent choice to the consumers at a much reasonable price. ” said Mr. Sanjay Banga, CEO, Tata Power-DDL. 

Utilizing the ENTRADE E4 mobile power system, Tata Power-DDL and ENTRADE have built India’s first biomass-to-energy testing facility, showcasing the ability to produce electricity using organic waste as feedstock. Solar panel and battery storage testing will also be conducted at the site. The pilot programs will provide R&D data on clean energy solutions while exploring options for electrification of rural India. The E4 system will be replaced with an EX system in the first quarter of 2019.

A major source of air pollution in the region comes from coal-fired power plants and the testing of renewable energy sources is detrimental to improving air quality. Plans for sourcing local biomass fuels to be converted to clean energy are being considered with the most technologically advanced and fasted growing biomass systems on the market. Long term studies will potentially include waste from agricultural crops. Implications of post pilot opportunities with the abundance of agricultural crops typically burned in the open could provide dramatic air quality improvements for industrial and rural regions. 

“Through our R&D work with Tata Power-DDL, we can help alleviate environmental issues and provide massive new opportunities through this truly groundbreaking technology bringing access to clean energy,” stated Julien Uhlig, CEO of ENTRADE X. “Our decentralized energy systems are not only more cost effective but also provide a fast deployment solution for rural electrification anywhere in the world.” 

https://www.linkedin.com/pulse/tata-power-ddl-entrade-launch-waste-energy-solar-power-julien-uhlig/

Oldest Nuclear Power Plant in US to be Retired – The 60 Year Decommissioning Process

When a nuclear plant retires, it stops producing electricity and enters into the decommissioning phase. Decommissioning involves removing and safely storing spent nuclear fuel, decontaminating the plant to reduce residual radioactivity, dismantling plant structures, removing contaminated materials to disposal facilities, and then releasing the property for other uses once the NRC has determined the site is safe.

According to Exelon, Oyster Creek will undergo a six-step decommissioning process. The typical decommissioning period for a nuclear power plant is about 60 years, so parts of the Oyster Creek plant structure could remain in place until 2075. (1.)

retired nuclear power plants and nuclear power plants that have announced retirement

Since 2013, six commercial nuclear reactors in the United States have shut down, and an additional eight reactors have announced plans to retire by 2025. The retirement process for nuclear power plants involves disposing of nuclear waste and decontaminating equipment and facilities to reduce residual radioactivity, making it much more expensive and time consuming than retiring other power plants. As of 2017, a total of 10 commercial nuclear reactors in the United States have been successfully decommissioned, and another 20 U.S. nuclear reactors are currently in different stages of the decommissioning process.

To fully decommission a power plant, the facility must be deconstructed and the site returned to greenfield status (meaning the site is safe for reuse for purposes such as housing, farming, or industrial use). Nuclear reactor operators must safely dispose of any onsite nuclear waste and remove or contain any radioactive material, including nuclear fuel as well as irradiated equipment and buildings. (2.)

References:

  1. America’s oldest operating nuclear power plant to retire on Monday
  2. Decommissioning nuclear reactors is a long-term and costly process

Solar Energy on Reservoirs, Brownfields and Landfills

One of the downsides to large-scale solar power is finding space suitable for the installation of a large area of PV panels or mirrors for CSP.  These are long-term installations, and will have impact on the land and it’s uses.  There are potential objections to committing areas of undeveloped or pristine land to solar power. 

Solar Energy on Reservoirs:

Floating arrays have been installed on surfaces such as water reservoirs as these “land areas” are already committed to a long-term purpose.  Solar power is considered a good synchronistic fit, and most recently work was completed in England seeing “23,000 solar panels on the Queen Elizabeth II reservoir at Walton-on-Thames”.   (1)

Water utilities are the first to see the benefit of solar panel installations as the power generated is generally consumed by the utilities operations for  water treatment and pumping.  This of course offsets demand requirements from the electrical utility and reduces operating costs with a ROI from the installation.  Possible government or other industry incentives and subsidies may enhance benefits.  Last year a 12,000 panel system was installed on a reservoir near Manchester (UK) and was the second of it’s kind in Britain, dwarfing the original installation of 800 panels.  (2)  (3)

Solar Array on Reservoir Japan MjcxMzAwOQ

Image #1:  World’s largest floating array of PV Solar Panels in Japan (4)

Currently Japan has the most aggressive expansion plans for reservoir installations, with the most recent being the world’s largest of it’s kind.  Recent changes in energy policies and the ongoing problems associated with Nuclear Power has propelled Japan into aggressively seeking alternative forms of energy.

The 13.7-megawatt power station, being built for Chiba Prefecture’s Public Enterprise Agency, is located on the Yamakura Dam reservoir, 75 kilometers east of the capital. It will consist of some 51,000 Kyocera solar modules covering an area of 180,000 square meters, and will generate an estimated 16,170 megawatt-hours annually. That is “enough electricity to power approximately 4,970 typical households,” says Kyocera. That capacity is sufficient to offset 8,170 tons of carbon dioxide emissions a year, the amount put into the atmosphere by consuming 19,000 barrels of oil.” 

“[…]“Due to the rapid implementation of solar power in Japan, securing tracts of land suitable for utility-scale solar power plants is becoming difficult,” Toshihide Koyano, executive officer and general manager of Kyocera’s solar energy group told IEEE Spectrum. “On the other hand, because there are many reservoirs for agricultural use and flood-control, we believe there’s great potential for floating solar-power generation business.”

He added that Kyocera is currently working on developing at least 10 more projects and is also considering installing floating installations overseas.” (4)

Solar Energy on Brownfields:

A Brownfield is defined generally by the EPA  (5)

A brownfield is a property, the expansion, redevelopment, or reuse of which may be complicated by the presence or potential presence of a hazardous substance, pollutant, or contaminant. It is estimated that there are more than 450,000 brownfields in the U.S. Cleaning up and reinvesting in these properties increases local tax bases, facilitates job growth, utilizes existing infrastructure, takes development pressures off of undeveloped, open land, and both improves and protects the environment.

Solar Brownfield 1 D6A13-0092.jpg

Image #2:  6-MW solar PV array on the site of the former Palmer Metropolitan Airfield (6)

Traditionally most solar projects have been built on “Greenfields”, however, on further analysis it makes far more sense to install solar on “Brownfields”.

The U.S. is home to more than 450,000 brownfields – unused property that poses potential environmental hazards. Eyesores as well as potential health and safety threats, brownfield sites reduce urban property values. Rehabilitating them pays off, and in more ways than one, according to a July, 2014 National Bureau of Economic Research (NBER) working paper entitled, ¨The Value of Brownfield Remediation.¨ […]

NBER researchers determined that remediation increased the value of individual brownfield sites $3,917,192, with a median value of $2,117,982. That compares to an estimated per-site cost of $602,000. In percentage terms across the study’s nationally representative sample, EPA-supported clean-ups resulted in property price increases of between 4.9% and 32.2%. (6)

In another example where a Brownfield remediation effort has payed off utilizing a Solar Power upgrade is at the Philadelphia Navy Yard according to a June 2011 report by Dave Levitan (7) where it says:

“The Navy Yard solar array is just one of a growing number of projects across the U.S. that fall into the small category of energy ideas that appear to have little to no downside: turning brownfields — or sites contaminated

Every solar project that rises from an industrial wasteland is one that won’t be built on pristine land.

or disturbed by previous industrial activity — into green energy facilities. Among the successfully completed brown-to-green projects are a wind farm at the former Bethlehem Steel Mill in Lackawanna, New York; a concentrating solar photovoltaic array on the tailings pile of a former molybdenum mine in Questa, New Mexico; solar panels powering the cleanup systems at the Lawrence Livermore National Laboratory’s Superfund site in northern California; and the U.S. Army’s largest solar array atop a former landfill in Fort Carson, Colorado.”

Solar Energy on Landfills:

Building solar power projects on top of closed off landfills appears to be a good idea, however, there are additional considerations and requirements which must be met which would exceed those of a normal type of undisturbed geology.

Construction and ongoing operation of the plant must never break, erode or otherwise impair the functioning integrity of the landfill final closure system (including any methane gas management system) already in place.”  (8) […]

A-Simple-Guide-to-Building-Photovoltaic-Projects-on-Landfills-and-Other-...-copy-3-291x300

Image #3:  Prescriptive Landfill Capping System

In general, the features of a conventional “Subtitle D” final protection barrier cover system on USA waste sites are shown in the illustration above and include the following layers added on top of a waste pile:

  1. First, a foundation Layer – usually soil—covers the trash to fill and grade the area and protect the liner.
  2. Then typically a geomembrane liner or a compacted clay layer .is spread over the site to entomb the waste mass in a water impermeable enclosure.
  3. A drainage layer (i.e. highly transmissive sands or gravels or a manufactured “Geonet”) is next added– especially in areas with heavy rainfall and steeper slopes. This is to prevent the sodden top layers of dirt from slipping off the impermeable barrier (a.k.a. a landslide).
  4. Next, typically 18 inches of soil is added as a “protection layer.”
  5. Finally, an “erosion layer” of soil – typically 6 inches of dirt of sufficient quality to support plant growth (grasses, etc., etc.) which the waste industry calls a “vegetative layer.”

Solar-landfill-table-lo-res

Image #4:  Established Solar Energy Projects on Closed Landfills (9)

As of 2013 we can see that there already have been a number of solar installations and that this number is still growing through to the present as more municipalities seek ways to convert their closed landfills into a renewable resource and asset.

Summary of Solar Energy Project Types by Site

A greenfield site is defined as an area of agricultural or forest land, or some other undeveloped site earmarked for commercial development or industrial projects.  This is compared to a brownfield site which is generally unsuitable for commercial development or industrial projects due to the presence of some hazardous substance, pollutant or contaminant.

While a water reservoir is not a contaminated site, it is generally rendered useless for most purposes, however provides an ideal site for locating solar panels as they provide relatively large areas of unobstructed sun.  Also reservoirs provide water cooling which enhances energy efficiency and PV performance.  Uncovered reservoirs can be partially covered by floating arrays of PV panels, of modest to large sizes in the 16 MW range.  Installations can be found throughout the world, including England and most recently Japan where interest in alternative energy sources is growing rapidly.

A brownfield site is considered ideal for the location of a solar plant as a cost-effective method of an otherwise useless body of land, such as a decommissioned mine, quarry, or contaminated site.  A landfill is one form of brownfield site which could be suitable for the installation of solar power where provision has been made to protect the cap on the landfill.  Municipalities have been showing growing interest in landfill solar as a means to offset operational costs.

Abbreviations:

PV – Photo Voltaic

CSP – Concentrated Solar Power

ROI – Return On Investment

UK – United Kingdom

NBER – National Bureau of Economic Research

EPA – Environmental Protection Agency

References:

  1. http://www.theguardian.com/environment/2016/feb/29/worlds-biggest-floating-solar-farm-power-up-outside-london
  2. http://www.telegraph.co.uk/finance/newsbysector/energy/11954334/United-Utilities-floats-3.5m-of-solar-panels-on-reservoir.html
  3. http://www.telegraph.co.uk/news/earth/energy/solarpower/11110547/Britains-first-floating-solar-panel-project-installed.html
  4. http://spectrum.ieee.org/energywise/energy/renewables/japan-building-worlds-largest-floating-solar-power-plant
  5. https://www.epa.gov/brownfields/brownfield-overview-and-definition
  6. http://microgridmedia.com/massachusetts-pv-project-highlights-benefits-of-solar-brownfields/
  7. http://e360.yale.edu/feature/brown_to_green_a_new_use_for_blighted_industrial_sites/2419/
  8. http://solarflexrack.com/a-simple-guide-to-building-photovoltaic-projects-on-landfills-and-other-waste-heaps/
  9. http://www.crra.org/pages/Press_releases/2013/6-3-2013_CRRA_solar_cells_on_Hartford_landfill.htm

Industrial Plant to be Re-Developed into Mega-Indoor Vertical Farm Factory

AeroFarms, a leading commercial grower for vertical farming and controlled agriculture, together with property management firm RBH Group, a slew of investment partners along with the City of Newark and the New Jersey Economic Development Authority (NJEDA) announced the intent to redevelop a former industrial site in Newark’s Ironbound district into a state-of-the art 69,000 square foot indoor vertical farm.

Source: archinect.com

>” […] Currently under construction, the first phases will open in the second half of 2015, creating approximately 78 jobs in a local community with an unemployment rate that is twice the national average. Additionally, AeroFarms has partnered with the Ironbound Community Corporation to create a recruiting and job training program targeting local residents.

The building is located on a 3-acre industrial site in the center of the Ironbound community in Newark, NJ. It is adjacent to elevated truck Route 1 and 9, a freight rail right of way, and to other industrial businesses along Rome and Christie Streets.

When completed, AeroFarms will have the capacity to grow up to 2 million pounds per year of baby leafy greens and herbs in an environmentally controlled, safe, and sanitary facility. It will provide healthy foods to the local community as well as to other markets. AeroFarms is a model for successful, sustainable farming offering 75 times more productivity per square foot annually than a traditional field farm while using no pesticides and consuming over 95% less water. […]”<

See on Scoop.itGreen & Sustainable News

Industrial Metals Contaminate Vancouver Community Garden – Brownfield Sites

An eight-month study of Vancouver garden and agricultural soils has found levels of lead and other metals above the most stringent Canadian standards for human health.Samples taken from the 16 Oaks community garden averaged 219 parts per million of lead, which exceeds the standard of 70 to 140 ppm for agricultural, residential and park land set by the Canadian Council of Environment Ministers.Levels of lead — a potent neurotoxin — are five times higher than those measured at UBC Farm

Source: www.vancouversun.com

>” […] “These numbers are higher than is commonly acceptable for growing vegetables and food crops.”

Oka’s findings may call into question the City of Vancouver’s enthusiasm for urban agriculture.

“You want to be conservative. According to the precautionary principle, if you aren’t sure what you are dealing with, you have a moral and ethical responsibility to go slowly,” said Lavkulich. “We aren’t saying don’t grow food, but you want to be sure what the impacts are on human health before you start advocating for urban agriculture.”

The city encourages would-be gardeners to have their soil tested and, barring that, to grow vegetables in lined boxes with clean soil rather than in the native soil, said Coun. Andrea Reimer.

“This city has a long industrial history and they didn’t always have the environmental standards that we have today,” she said. […]”<

See on Scoop.itGreen Building Design – Architecture & Engineering