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First solar PV plant to be installed at Liberty Midlands Mall in South Africa

The first solar PV plant is set to be installed at Liberty Midlands Mall in South Africa; this is according to Liberty Two Degrees (L2D) in partnership with Liberty Group.

L2D asset management executive for Liberty Midlands Mall Brian Unsted confirmed the reports and said that the plant will be a grid tied, roof-mounted PV installation comprising 2 900 panels, which will supply around 1 MW of energy to the mall.

Also Read: Construction of Ngonye solar Pv plant in Zambia commences

L2D’s strategy

“Reducing carbon footprints across our retail portfolio is a priority for L2D. The solar PV project for Liberty Midlands Mall will serve as the first initiative of its kind in our portfolio and will act as a benchmark for future solar plant project roll-outs,” he said.

Liberty Midlands mall’s solar PV plant aligns with L2D’s strategy of investing in renewable energy for improved efficiency and the management of natural resources for the benefit of the environment.

“We have put in place an effective framework to continually improve our environmental impact, an initiative that remains integral to our commitment to improve our operations,” Unsted added.

Mono Crystalline technology

The solar plant for the mall will be a grid tied, roof mounted PV installation made out of premium Mono Crystalline technology comprising 2 900 panels which will supply approximately 1 MW of energy to the mall and is designed and manufactured to last a minimum 25-year lifespan.

The installation will be the largest commercial solar plant in the retail industry in Pietermaritzburg. The mall’s expansion will operate mainly on solar energy and be off the grid for most daylight hours.

The installation of the plant will be done in September this year and will be commissioned on the roof of the mall’s 22 000 m2 Phase 3 extension that was launched in March. The completion date is set for the first quarter of 2019.

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TOWN OF ULSTER, N.Y. >> The New York State Bridge Authority plans to start of construction on a 486-kilowatt solar panel array at the west end of the Kingston-Rhinecliff Bridge.

The array is expected to generate about 26 percent of the electricity currently used by the authority.

The project cost is estimated at $117,000 and the investment will be paid off in 13 years by the energy savings realized during that period, officials say. The project is part of Gov. Andrew Cuomo’s Clean Energy Standard, which requires 50 percent of New York’s electricity to come from renewable energy sources, such as wind and solar, by 2030.

The Clean Energy Standard was established to help fight climate change, reduce harmful air pollution, and ensure a diverse and reliable energy supply, according to a Bridge Authority press release.




Construction of the solar array is expected to be completed by the end of the year.



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Elsevier

Available online 23 August 2018

Chemosphere

Highlights

A new type of solar powered membrane distillation enhanced by phothothermal nanofluid is developed.

TiN is identified as the optimal nanofluid out of ten tested materials.

Membrane distillation flux and solar energy utilization efficiency are markedly improved.

Abstract

Nanofluids have excellent solar energy utilization efficiency due to the localized surface plasmon resonance phenomenon. In this study, photothermal nanofluids were employed as the feed solution for energy harvesting in solar powered membrane distillation. Ten different nanofluids were compared and TiN (titanium nitride) was chosen following UV-Vis-NIR-waveband (ultraviolet-visible-near-infrared) optical absorption analysis, zeta potential measurement, and membrane distillation flux testing. Desalination experiments were conducted using a range of TiN concentrations and solar radiation powers. The results showed that water flux and solar energy utilization efficiency increased with increasing TiN content. Compared to the base fluid (35 g/L NaCl aqueous solution), flux increased from 0.47 to 0.74 kg/(m2∙h), while energy utilization efficiency improved from 32.1{0b7da518931e2dc7f5435818fa9adcc81ac764ac1dff918ce2cdfc05099e9974} to 50.5{0b7da518931e2dc7f5435818fa9adcc81ac764ac1dff918ce2cdfc05099e9974} for 100 mg/L TiN nanofluid. Flux also increased with the increasing of solar radiation power markedly. With 5 kW/m2 solar radiation power, the flux reached 2.77 kg/(m2∙h). Furthermore, the permeate water produced was of excellent quality contained less than 10 mg/L salinity when using 35 g/L NaCl feed solution. And no nanoparticles were detected transport through the membrane during the process . The nanofluid enhanced solar powered membrane distillation represents a promising perspective for better solar energy utilization.

Keywords

Solar energy

Nanofluid

Desalination

Air gap membrane distillation

Titanium nitride

© 2018 Published by Elsevier Ltd.

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Cascade Power is a solar energy consulting corporation that specializes in providing a free no obligation service that allows people to assess their home’s energy, and find solutions to lower their power cost with solar power. We are a fast growing company looking for leaders, which leaves a lot of room for advancement and the opportunity to build a career.

We offer some unique solar programs that allow people to get solar in may different ways without having to spend any money out of pocket. Combine that with top tier training and the result is a much higher close ratio than the industry standard.

We are looking for individuals who are confident, assertive, great at building customer relationships, and closing deals. Sales experience is not a requirement as long as your hungry, eager to learn sales and grow.

Job Responsibilities:

Build trust and rapport with qualified homeowners
Coach-able
Qualifying homeowners to conduct home consultations
Speak one on one with homeowners about their energy usage and assist in finding the right solution.
Provide exceptional customer service throughout the sales process.
Prospecting, Market, Canvass, Network

Requirements:

Great attitude
Able and willing to self generate your own business
Focus and goal oriented
Self motivated
Great communicator
Always professional
Strong organizational skills
Ability to have a flexible work schedule
Reliable transportation
Benefits:

At target numbers: $100,000 + annual earnings
Top Sales Reps: 200,000 + annual earnings
Additional bonuses
Employee referral bonus
Advancement opportunity
Exciting career path with the best leaders in the industry to train and guide you

Self generated leads will be the start during ramp up period. Fully ramped reps or reps with solar sales experience will be supplied with company generated leads.

Company generated leads will be supplied to reps who have had solar sales experience and closed at a high level, or will be provided to those who have been trained and proven to close at a high level.

*Spanish speaking representatives needed! Bonuses Paid for Spanish speaking consultants!*

Please email resume for immediate consideration.

Job Types: Full-time, Commission

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Later this fall, Renewable Energy Systems (RES) will begin constructing a 5-MW solar PV plant and a 10-MW/10-MWh battery energy storage system for CPS Energy in San Antonio, Texas.

This project combines distributed solar generation with strategically sized and configured electrochemical energy storage, according to the companies, because both the solar and the storage technologies will be interconnected at distribution voltage on a common feeder. Once operational, the system will allow for peak mid-day solar production to be stored and injected onto the grid in late afternoon and early evening, resulting in reduced reliance of fossil fuel generators to meet peak demand during these periods.

In California, as the sun sets and people arrive home from work, energy demand spikes while solar PV generation drops off. This phenomenon has been called the “duck curve.” (See image below.)

CPS Energy and RES say this combined solar plus storage approach is scalable and means that peak system electrical demand will be met with lower emissions producing energy and increased flexibility. 

The project is among the first co-located solar and storage projects interconnected at the distribution level within the Electric Reliability Council of Texas (ERCOT).


Image: Graph of California hourly electric load vs. load less solar and wind (the w:Duck curve) along with solar power output. Data is from CalISO and is for October 22, 2016, a day when the wind output was low and steady throughout the day. Credit: ArnoldReinhold

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See photos, tips, similar places specials, and more at Solar Energy Society of Canada Inc.

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On Thursday, California legislators were introduced to a new clean energy bill, one with a decidedly shorter-term goal than shifting to a 100 percent clean energy grid by 2045 (SB 100), or creating a pan-Western region grid over the coming decade (AB 819).  

Instead, the new bill, AB 893, aims to force utilities to buy about 2,500 megawatts of wind and solar power over the next four years — a move its supporters say will fill a widening gap in the state’s utility-scale renewables market, and save hundreds of millions of dollars in federal tax credits that could otherwise be lost. 

At least that’s what AB 893 would do under the new amendments added to it this week. Prior to this late-breaking change, the bill was solely about requiring the state’s investor-owned and public utilities, community-choice aggregators (CCAs) and direct energy providers to buy about 5,000 megawatts of geothermal power under the state’s renewable portfolio standard — a proposal that was rejected by the legislature in 2014.  

But the newly amended bill makes several important changes to the original framework, according to Rick Umoff, California director of state affairs for the Solar Energy Industries Association. 

First, it splits up the mandate, with about 2,500 megawatts to be made up of wind and solar power, and the remaining 2,500 megawatts to come from geothermal and biomass resources, he said. Second, it would put those 2,500 megawatts of wind and solar power on a fast track for procurement starting in 2019, to ensure that they’re eligible for federal tax credits set to expire for projects not started by the end of next year. 

“If we’re going to take advantage of those, we need to start moving now on procurement,” Umoff said. “But we’re not seeing very robust procurement of wind and solar at the moment.”

That’s a problem for meeting the state’s goal of reducing economywide greenhouse gas emissions 40 percent from 1990 levels by 2030. 

According to the California Public Utilities Commission (CPUC), California will need to procure about 10.3 gigawatts of solar and wind by 2030 to meet the utility sector’s share of this goal, said Umoff. But if it isn’t able to meet part of that requirement with projects that receive the existing federal tax credits, the total cost to consumers of meeting that goal is likely to increase.

Resolving market uncertainty

Analysis done as part of the CPUC’s integrated resource plan filed last year indicates that failing to develop a significant amount of projects that are able to take advantage of federal tax credits could cost California ratepayers an additional $143 million per year, he noted.

While tax credits are just one of nearly two dozen variables that could affect these long-range costs, the CPUC’s “model results indicate that utility-scale solar PV and wind procured within [the] next 1-3 years to take advantage of federal tax credits are part of [a] least-cost solution for 2030,” the CPUC wrote in a November staff report

AB 893 is meant to create a pathway to capturing the value of these tax credits in a California renewable energy market that’s now filled with “near-term uncertainty around who is procuring, and how the procurements will be structured,” Umoff said. 

California’s utility-scale renewables market has slowed in the past year. Investor-owned utilities Southern California Edison, Pacific Gas & Electric and San Diego Gas & Electric have already satisfied their RPS requirements, leaving them with little incentive to buy more. And while CCAs have launched around the state with the express goal of increasing their customers’ share of renewable energy, most lack the balance sheets and creditworthiness to contract for renewables on their own. 

“One thing this bill is trying to do is resolve this uncertainty in the market,” said Umoff. AB 893 would apportion these procurements across the various load-serving entities in the state, roughly based on their proportion of load. CCAs would have the opportunity to procure projects on their own behalf, or if they’re unable to, have the investor-owned utility procure on their behalf, he said.  

Political opposition and support

The bill faces significant political opposition. Prior to this week’s amendments, AB 893 was opposed by the state’s investor-owned utilities, its two big public utilities in Los Angeles and Sacramento, and the CalCCA group representing CCAs across the state, along with Shell Energy North America, a big direct-access energy retailer in the state. Business groups including the California Chamber of Commerce and building, real estate, shopping center and farming organizations are also opposing the bill. 

This opposition was largely centered on the concern that the massive new geothermal procurement mandate would force utilities into expensive contracts and increase electricity costs for ratepayers. 

But AB 893’s supporters, which include the Solar Energy Industries Association, the California Wind Energy Association, the Large-Scale Solar Association, and geothermal project developers, say the bill’s new emphasis on short-term solar and wind procurement, at today’s low prices and with the benefit of federal tax credits, should significantly reduce the risk of procurement costs rising out of control.

AB 893 backers are also seeking the support of labor unions, which may see it as promoting more in-state jobs for solar, wind, geothermal and biomass projects, Umoff said.

The groups that have opposed the old version of AB 893 did not immediately issue statements on the newly amended version introduced Thursday. However, the business groups opposing the original version of AB 893 wrote in a letter that they were concerned that version of the bill would force utilities to meet its geothermal mandate by “purchasing out-of-state power and purchasing geothermal at the expense of other renewable resources” — which is a concern that the new version of the bill might be seen as allaying.   

Umoff also noted that, compared to the state’s current portfolio of about 24,000 megawatts of utility-scale solar and nearly 13,000 megawatts of wind power, an additional 2,500 megawatts over four years represents “a limited number of procurements.”

AB 893 would also subject its 10-year contracts to a cost-containment review process similar to the one performed under the current renewable portfolio standard, and would apply more relaxed timelines for the procurement of the geothermal resources that were the bill’s original focus, he said. 

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Solar power is an industry that’s on the rise in Central Ohio (WSYX/WTTE)

Solar power now accounts for 2{0b7da518931e2dc7f5435818fa9adcc81ac764ac1dff918ce2cdfc05099e9974} of electricity in the United States and has accounted for at least one-third of all new electric capacity brought online in the last three years, according to the Solar Industries Energy Association. It’s an industry that’s growing across the country and here in Central Ohio.

Scott Snider is one local home owner that is now powering his home with sunshine. Snider says he’s had his eye on solar power for a while, but took the leap this summer because of improving technology and falling prices over the last several years. He uses an app on his phone to monitor his solar panels to see how much they are producing.

“My large silver maple in the backyard cuts me off until around 10 am. Then around 10 am I get this huge spike,” Snider said. “It keeps a graph and I can cycle back through the different days and I can see how my production went.”

Power Home Solar is one of the newest sustainable energy companies to open up shop here – in Worthington.

“That’s what they see on the roof. That’s the new hat for the house,” says Paul McCaleb, expansion manager.

He says that this summer alone, they’ve installed solar panels on hundreds of homes.

“You’re going to pay for power either way and now it’s something people are choosing to own rather than rent,” McCaleb said.

Mccaleb says their numbers are growing every month. Across the country solar power has seen an average annual growth of 59{0b7da518931e2dc7f5435818fa9adcc81ac764ac1dff918ce2cdfc05099e9974} for the last decade.

“It’s been something people have really liked and it’s really grown quickly.”

Some businesses are taking a hit because of President Trump’s new 30{0b7da518931e2dc7f5435818fa9adcc81ac764ac1dff918ce2cdfc05099e9974} tariff on imported solar panels, but that’s not a problem for McCaleb since his solar panels are manufactured in San Antonio, Texas.

Back at Snider’s house, he says one of the things he’s looking forward to the most is a much smaller power bill next month.

“Currently on a busy month we’re seeing a $180-190 electric bill, and I’m expecting that to go down to about $100,” Snider said.

Down the road when his investment is paid off and he makes some additions, he expects he won’t have a power bill at all, just as long as the Central Ohio weather cooperates.

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ForeFront Power is installing a total of 3.7 MW of solar for three school districts in California.

The projects will be installed across 13 locations for Stockton Unified School District (San Joaquin County), South Monterey County Joint Union High School District (Central Coast) and Shasta Union High School District (northern California).

The solar parking canopy projects, which will be completed in 2019, are expected to generate over 5 million kWh of electricity annually. ForeFront Power will manage all aspects of project development, including financing via a power purchase agreement, requiring no upfront cost or bonds on the part of the districts.

“As one of the largest school districts in California, it’s important that we demonstrate our commitment to sustainability while conserving district resources,” comments Steve L. Breakfield, Stockton USD’s director of facilities and planning. “ForeFront Power’s solutions enable Stockton USD to implement solar at schools across our district without the use of bond funds and bring solar learning directly into the classroom.”

Stockton USD has prior experience installing solar at several high schools and middle schools. For this second round of sites, the district chose ForeFront Power, which offers a streamlined procurement process via California’s School Project for Utility Rate Reduction (SPURR). ForeFront Power notes that its backing by Mitsui ensures a stable counterparty for the long-term life of the solar projects.

All districts used a purchasing framework through SPURR, allowing public agencies in California to “piggy-back” a competitive request for proposals process for solar energy. Since 2015, the SPURR Renewable Energy Aggregated Procurement program and the ForeFront Power team have helped over 20 school districts and municipalities procure more than 50 MW of solar power across more than 100 sites.

“We are thrilled that so many schools, municipalities and county offices are saving time, effort and money by using our procurement process. SPURR strives to offer clear, fair and competitively sourced terms and conditions that allow for easy sourcing,” says Michael Rochman, managing director of SPURR.

The schools will also receive free energy lesson plans from Schools Power, a national education organization that provides school districts with standards-based renewable energy curriculum packages. ForeFront Power and Schools Power announced their partnership in July of last year.

“Our curriculum will make on-site solar adoption even more real for students,” says Elliott Josi, CEO of Schools Power. “Students will be able to practice their skills in STEM and English language arts. Also included are activities to build student interest and awareness of careers in the solar energy industry.”

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Ground has been broken for the Gateway Solar Farm, a massive solar farm located near the intersection of Routes 50 and 90 in the town of Berlin, just 10 miles west of Ocean City.

“This is one of our flagship projects. We are actually one of the largest owners onsite and offsite of renewable energy in the state of Maryland, but this project alone makes up a tenth of our portfolio in Maryland,” said Brendon Quinlivan, of Constellation, an Exelon company.

Constellation is planning to install more than 30,000 solar panels on 113 acres. Officials said the project will generate as many as 200 temporary jobs and account for 20 percent of Ocean City’s electric power.

To put the size of the solar farm in perspective, as many as 85 football fields could fit into the site.

“The savings is about $140,000 a year. It’s a significant savings from a dollar standpoint and also from an environmental standpoint,” said Ocean City Mayor Rick Meehan.

The project will reduce carbon emissions by 4,200 metric tons, equivalent to taking 900 vehicles off the road. The solar farm will power Ocean City municipal buildings including City Hall, the convention center, public safety buildings and the water plant.

“They’ll connect to the grid. We are essentially buying the kilowatts off that,” said Terry McGean, an Ocean City engineer.

Constellation is open to doing solar demonstration projects at its expense, either at City Hall, the boardwalk or during festivals. The Gateway Solar Project is expected to be fully operational by this December.

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