Reverse Osmosis, Wastewater Treatment, Tender, Reverse Osmosis, Malta
Ceramic nanofiltration company gets big investor
ItN Nanovation AG, a start-up company in Saarbrucken, Germany, making nanofiltration ceramic products for the water industry, announced on 9 December 2010 a framework investment agreement with the US investment fund YA Global Master SPV Ltd, part of the Yorkville Group.
RO consumes 4% of Malta's electricity, says new group
Reverse-osmosis desalination plants consume almost 4% of Malta's electricity supply, according to a statement from the newly-formed Malta Water Association (MWA) on 22 March 2011. The group, made up of hydrologists, engineers and other water experts, warned that urgent action is needed to protect Malta's water resources, which "are among the scarcest in the world and under severe stress."
Tender for Chennai RO water-reuse plant feasibility
Bids are due by 22 February 2012 for a prefeasibility study for a 45,000 m³/d membrane-based tertiary wastewater treatment plant in Chennai, India.
OPWP seeks consultant for two desalination projects
The Oman Power and Water Procurement Company SAOC (OPWP) has invited specialized companies to submit offers for supervisory consultancy services for the Ghubrah IWP and Barka I water projects, both of which involve desalination plants.
Spanish prominent in Al Ghubrah desalination bidders
Spanish companies are involved with five of seven bidders that have been invited by the Oman Tender Board to submit proposals for the Al Ghubrah Independent Water Project (IWP).
Bidding for largest solar desalination plant opens soon
Tenders for the world's largest solar-powered seawater desalination plant in Ras Al Khaimah, UAE, will be invited next month by utility company Utico Middle East.
Consolidated bidding for Mexican SWRO desalination
Consolidated Water Co (CWCO) has declared itself to be one of the tenderers for the El Salitral desalination plant in Baja California, Mexico. Bids are due by June.
Oman's Sur desalination plant seeks large expansion
The owner and operator of Oman's Sur seawater desalination plant, Sharqiyah Desalination Company (SDC), has filed a bid with the Oman Tender Board for approval of a proposed expansion of 10.6 MIGD (48,000 m³/d) to the plant.
Singapore tenders 318,500 m³/d SWRO desalination plant
A tender for a 70 MIGD (318,500 m³/d) desalination plant to be built at Tuas, Singapore, was launched on 30 June 2010 by the country's national water agency, PUB.
Ashdod desalination tender launched by Mekorot
Mekorot Development & Enterprises (MD&E), a subsidiary of the Israeli national water company, issued on 1 February 2009 a tender for the design, building, commissioning and supervision on a turnkey basis of the Ashdod seawater desalination plant.
Consultants sought for Ajman SWRO desalination
The Federal Electricity and Water Authority (FEWA) in the UAE has issued a tender (19W/2013) for consultancy services for a seawater reverse-osmosis desalination plant at Al Zawra, Ajman.
Malta tenders Euro 10 million desalination project
The Water Services Corporation of Malta has issued a tender for a reverse osmosis plant at Hondoq Bay on the Island of Gozo.
Oil/gas sector MBR leads new H2O Innovation jobs
Supply of a membrane bioreactor (MBR) wastewater treatment and reuse system to an industrial user in the oil and gas industry in Alberta, Canada, was announced by H2 O Innovation Inc on 8 March 2012.
Papers invited for 2013 AWWA/AMTA event
With the 2012 AWWA/AMTA Membrane Technology Conference under way this week in Phoenix, Arizona, a call for papers has been issued for next year's event in Texas.
H2O Innovation lands three water/wastewater contracts
H2O Innovation Inc announced on 14 January 2014 recent contracts totalling Can$ 6.5 million (UA$ 5.93 million) in Western Canada's energy sector.
LACSD signs up Desalitech for chloride‑removal test
Desalination system developer Desalitech is to support a pilot project with the Los Angeles County Sanitation Districts (LACSD) to upgrade two Santa Clarita Valley wastewater treatment plants in order to meet state‑mandated chloride limits, the company announced on 2 October 2013.
Desalitech RO wastewater use 'will pay back in 6 months'
Desalitech, developer of the closed-circuit desalination (CCD) system, is to supply a zero liquid discharge (ZLD) advanced wastewater treatment system for a pesticide plant in Gujarat, India.
Commission warns Australia about gas-production wastewater
Handling the wastewater resulting from coal-seam gas (CSG) production in Australia is likely to require a precautionary approach that will demand innovation from water managers and planners, and significantly greater coordination with existing project approval processes, the National Water Commission warned in December 2010.
Doosan Hydro wins Al Jubail membrane treatment contract
Florida-based Doosan Hydro Technology has been awarded a US$ 10 million contract by Daelim Industrial Co Ltd for the industrial wastewater treatment and reuse package on the Saudi Elastomers Project (SEP) located in Al-Jubail, Saudi Arabia.
Multi-technology GE upgrade for Russian refinery treatment
Membrane bioreactor (MBR), electrodialysis reversal (EDR) and reverse osmosis (RO) technology will all feature in a major upgrade for the wastewater treatment at one of Russia's biggest oil refineries.
US$ 6.25 million equity investment for Desalitech
Reverse-osmosis (RO) innovator Desalitech Inc has secured an equity investment of U$$ 6.25 million led by Liberation Capital LLC, which will be used for business expansion and working capital.
Tunisia and Malta to share desalination expertise
Tunisia has signed an agreement with the Mediterranean island of Malta involving sharing of expertise on desalination plants.
LG Chem bags five orders worth US$ 8 million
LG Chem has acquired new orders for water purification filters totalling US$ 8 million under exclusive deals with five desalination projects. The projects are at sites in Israel, Spain, Malta, Egypt and Mexico, the company said.
Tender later this year for Changi expansion
A tender will be called in the second half of 2011 for construction and installation of an expansion to Singapore's Changi Water Reclamation Plant using membrane technology.
UK water firm plans two water reuse plants
UK water company South East Water is to develop two water reuse schemes as part of its bid to ensure supply meets demand to 2040.
Proposals sought for membrane-integrity test method
The WateReuse Research Foundation has issued a Request for Proposals to create a method for testing the integrity of high-pressure membranes used for nanofiltration (NF) and reverse osmosis (RO) in water treatment and desalination.
ADWEA issues RfP for Mirfa power and desalination
The Abu Dhabi Water & Electricity Authority (ADWEA) last week issued a request for proposals from prequalified bidders for its build‑own‑operate extension of power generation and reverse osmosis (RO) water desalination at Al Mirfa.
Oman signs US$ 300 million water project agreement
Oman Power and Water Procurement Company, the sultanate's sole procurer of new power generation and water desalination capacity, has signed water project agreements worth 115 million rial (US$ 300 million).
Abilene wastewater overhaul uses GE pretreatment
The city of Abilene, Texas has completed its installation of GE's LEAPmbr wastewater pretreatment system as part of a major upgrade to the city's Hamby wastewater treatment plant.
Fernandez to boost ACWA's PPP push in MENA
Leading Spanish economist Luis Fernandez has joined environmental solutions provider ACWA Emirates as chief officer concessions for the Middle East/North Africa (MENA) region to provide in-depth support for the company's drive into the public-private partnership (PPP) sector.
Pentair X-Flow UF pretreatment for Ashdod desalination
The giant Ashdod seawater reverse-osmosis desalination (SWRO) plant under construction in Israel is to have ultrafiltration (UF) pretreatment supplied by Pentair X-Flow.
Dubai invites bids for turnkey solar-powered reverse osmosis desalination project
The Dubai Electricity and Water Authority (DEWA) has issued a tender inviting bids for the design, installation and testing and commissioning of a pilot photovoltaic-powered pumping and reverse osmosis water desalination system.
Proposals invited for Oman's Al Ghubrah desalination
The Oman Power & Water Procurement Company issued a request for proposals to prequalified bidders on 4 March 2012 for a build-own-operate contract for the construction of a desalination-based independent water project (IWP) in Al Ghubrah with a capacity of 42 MIGD (191,000 m³/d).
Desalitech ties up with Toyo for international market
Innovative reverse-osmosis (RO) developer Desalitech and Japan's Toyo Engineering Corporation announced on 11 December 2013 the formation of a strategic partnership to introduce water and wastewater treatment solutions to Japanese, East Asian and international markets.
EDS/Wetsus issues membrane conference call for papers
A deadline of 30 June 2012 has been set for abstracts for the eighth in the series of conferences on Membranes in Drinking & Industrial Water Production, which will take place at Leeuwarden in the Netherlands on 10‑12 September 2012.
Black & Veatch wins consultant contract for giant Jeddah desalination project
Saudi Arabia's Saline Water Conversion Corporation (SWCC) has awarded consultancy, Black & Veatch, the engineering and design contract for a major desalination project that will supply the kingdom's second largest city, Jeddah.
Osmoflo wins industrial water-reuse project
Australia's Osmoflo has won a tender to design, build, operate and maintain a Aus$ 5 million (US$ 5.3 million) water-recycling plant and reticulation system at the Nyrstar Port Pirie smelter north of Adelaide in South Australia.
China's Tri-Tech acquires Wisconsin desalination provider
Desalination and wastewater treatment provider J&Y International Inc, based in Wisconsin, USA, was acquired by subsidiaries of Tri-Tech Holding Inc of China on 9 June 2011.
US$ 400 million funding agreed for Sorek desalination
The consortium building the Sorek seawater reverse-osmosis desalination plant in Israel announced on 23 May 2011 that it has entered into agreements to obtain US$ 400 million in project financing to construct and operate the plant.
Hyflux-led group wins US$ 250 million desalination plant tender
A consortium led by Singaporean water and environmental solutions company Hyflux has been awarded a US$ 250 million contract to design, build, own and operate an independent water project (IWP) in Oman.
RWL wins contract to build desalination plant in Argentina
RWL Water has won a contact to build what it claims will be Argentina's largest seawater reverse osmosis (SWRO) desalination plant.
Consultants sought for Chennai III desalination plant
Chennai Metropolitan Water Supply and Sewerage Board (CMWSSB) has called for tenders for consultancy services for a third seawater desalination plant for the city of Chennai in Tamil Nadu, India.
FEWA tenders Al Ghalila SWRO desalination plant
A tender notice for a desalination plant at Al Ghalila, Ras Al Khaimah, United Arab Emirates, was issued on 27 January 2011 by the Federal Electricity & Water Authority.
Wabag JV lands Oman port desalination contract
Chennai-based Wabag Ltd, in joint venture with fellow Indian contractor Nagarjuna Construction Company (NCC), has been awarded a contract for the completion of a seawater treatment plant, which will supply desalinated water to various industrial production plants in the Sohar International Port Complex.
Singapore utility awards desalt deal to Chinese-led group
Singapore's national water agency, PUB, has selected the BESIN-UEN consortium - led by China's Beijing Enterprises Water Group (BEWG) - as the preferred bidder to construct the second reverse osmosis (RO) plant sited at Changi under a public/private partnership.
Desalination booming in Tunisia
Desalination in Tunisia took a major step forward in July with the award of the 50,000 m³/d Djerba seawater desalination contract to a consortium including Befesa of Spain, announced on 14 July 2010, and the launch of a tender for the supply of ten brackish-water desalination plants at the end of the month.
Saudi plans two more giant desalination plants
Saudi Arabia's Saline Water Conversion Corporation (SWCC) has unveiled plans to build two huge sea water desalination plants including a vast 1.5 million m³/day capacity hybrid plant with 30% of its production coming from reverse osmosis and the rest from thermal desalination.
Caribbean successes for Seven Seas Water
The US Virgin Islands Water & Power Authority (WAPA) voted on 24 May 2010 to outsource all its desalination water supply to Seven Seas Water Corporation in a move intended to cut its water production costs in half.
IDE confirms Sorek desalination win
Israel's IDE Technologies confirmed on 15 December 2009 that Sorek Desalination Ltd (SDL), a joint venture with Hutchison Water, had won the Sorek (previously Soreq) desalination plant tender.
PX energy-recovery units selected for Palmachim expansion
Energy Recovery Inc announced on 9 September 2009 that its PX Pressure Exchanger (PX) devices have been selected for use in the expansion of the 115,000 m³/d Palmachim desalination plant, one of the largest seawater reverse osmosis plants in Israel.
SEDA Spring Symposium brochure available for download
The Southeast Desalting Association (SEDA) has a brochure available for its 2013 Spring Symposium to be held at Delray Beach, Florida.
ZWT wins oil-camp replacement RO plant order in Libya
Three turnkey reverse-osmosis (RO) water treatment plants are to be provided by Zulal Water Technology (ZWT) for the Gialo, Waha and Essider oil camps operated in Libya by Waha Oil Company.
Marubeni lowest of six consortia for Al Mirfa
A Marubeni-led consortium led the way when bids were opened by the Abu Dhabi Water & Electricity Authority (ADWEA) on 6 March 2013 for the Al Mirfa Independent Power & Water Project.
AMTA and SEDA to hold Chesapeake membrane workshop
The American Membrane Technology Association (AMTA), which promotes membrane processes for desalination and water / wastewater treatment, is to hold a joint technology transfer workshop with the Southeast Desalting Association in Chesapeake, Virginia, in May 2013.
RWL group to acquire Argentinian membrane specialists
RWL Water Group is about to snap up its fourth acquisition after reaching agreement in principle to acquire a majority holding in Argentinian membrane-technology expert Unitek SA.
Santa Cruz desalination EIR comment deadline in July
The draft environmental impact report (EIR) for the 2.5 MGD (9,500 m³/d) seawater desalination plant for the greater Santa Cruz area in California, USA, which was released on 13 May 2013, will be available for public comment until 15 July 2013.
IDA to return to Dubai for World Congress 2019
The International Desalination Association (IDA) is to return to Dubai, United Arab Emirates, for its World Congress in 2019, building on the earlier success of the IDA World Congress held in the emirate in 2009.
MF/RO plant may be Santa Clarita salt solution
A microfiltration/reverse-osmosis (MF/RO) advanced wastewater treatment plant is one of several options being considered by the Santa Clarita Valley Sanitation District (SCVSD) in California, USA, to deal with excessive chloride levels in the wastewater it discharges to the Santa Clara River from its two treatment plants.
VSEP system treats Colombian landfill leachate
Calfornia-based New Logic Research (NLR) announced on 8 February 2012 that it had successfully commissioned a landfill leachate treatment system in Colombia using its vibratory shear enhanced process (VSEP) membrane separation system.
Brochure available for AMTA workshop in Michigan
The American Membrane Technology Association (AMTA) has released a brochure updating information for its two-day technology transfer workshop in Michigan in May 2014.
Amiad filters to pretreat Korean steelworks RO feed
Microfibre filters to pretreat a reverse-osmosis (RO) plant are being provided for one of South Korea's largest steel factories by Amiad Water Systems.
Joint venture aims to treat Texas frac water
A joint venture to treat brackish/produced water sources has been set up in Texas by STW Resources Holding Corp and CK Investments Energy Company (CKI).
Biwater completes Virgin Islands desalination plant
Water technology company, Biwater, has started full commercial operation of a new 10,400 m³/day reverse osmosis seawater desalination plant constructed by the firm on the island of Tortola in the British Virgin Islands.
Oasys furthers advance in China
US-based forward osmosis specialist, Oasys Water, has unveiled its latest advance in its bid to expand in China with its partner in the region, Beijing Woteer.
VSEP system commissioned for Quito landfill leachate
Another vibratory shear enhanced process (VSEP) membrane reverse-osmosis (RO) system has been commissioned in South America at a municipal landfill in Quito, Ecuador.
H2O Innovation takes Californian reuse contract
A contract to expand the Leo J Vander Lans Advanced Water Treatment Facility in Long Beach, California, has been awarded to Canadian company H2O Innovation Inc.
ACWA wins two membrane-based projects in Saudi
Two separate contracts for membrane-based water and wastewater projects in Saudi Arabia have been awarded to ACWA Emirates LLC of Dubai.
Parsons selected for California water-reuse expansion
California's West Basin Water District has awarded its largest ever water-reuse contract to Pasadena-based Parsons Corporation on a design-build basis.
Aquatech to build SBR/UF/RO reuse plant for Mumbai airport
A complete turnkey engineering, procurement and construction contract for a 10,000 m³/d waste and sewage treatment and recycle project for the Chhatrapati Shivaji International Airport at Mumbai, India, has been awarded to Aquatech. Aquatech will also subsequently operate and maintain the facility.
Desalitech closed-circuit technology set for BWRO project
Israel-based Desalitech Ltd announced on 7 April 2011 that it had been awarded a contract to design and build a reverse osmosis (RO) desalination system for Environmental Protection Technologies (EPT), a global company that leads the industrial wastewater treatment market in Israel.
Doosan acquires UK desalination pretreatment technology
Korean company Doosan Heavy Industries & Construction announced on 13 November 2012 that it had completed its acquisition of key assets of the water/wastewater treatment engineering company Enpure, based in the UK.
Reverse osmosis to drive US membrane demand to $6.2 billion in 2018
Water and wastewater industry demand for membranes will drive a 7.9%-a-year increase in US demand to reach US$ 6.2 billion by 2018 with reverse osmosis membranes surging 8.6% a year according to report by market research firm, The Freedonia Group.
RO-based advanced treatment plant for West Virginia mines
A 5 MGD (19,000 m³/d) membrane-based wastewater treatment plant is to be built to serve a number of coal mines in West Virginia, USA, as a result of government action following pollution violations.
More desalination and reuse potential in Western Australia
Western Australia's Water Corporation is considering up to three seawater reverse-osmosis desalination plants along the southern coast of its area, known as Lower Great Southern, as part of a potential portfolio of water resources for the next 30 years.
GE expands HERO licensing agreement
GE Power & Water announced on 1 February 2011 that it has completed a new expanded licensing agreement to allow it to continue offering High Efficiency Reverse Osmosis (HERO) systems to help more of its industrial customers increase their water usage efficiency and reuse capacity.
San Diego gives green light to potable reuse plan
San Diego's city council has given the green light to the construction of a 415Ml/d facility for direct potable reuse of wastewater costing up to US$ 3.5 billion. The reverse osmosis recycling scheme is expected to meet as much as a third of San Diego's daily drinking water requirement by 2035 making it the second largest potable reuse plant in the US.
Jersey contracts ACWA to upgrade desalination plant
Utility, Jersey Water, has contracted international water and wastewater treatment firm, ACWA Services, to carry a out a £6 million (US$ 9 million) upgrade of the Channel Island's La Rosière desalination plant in a bid to cut operating costs and meet rising demand.
Seprotech to acquire Canadian consulting group
Canadian membrane water treatment and reuse provider Seprotech Systems Incorporated has reached agreement to acquire 100% of WESA Group Inc, a professional services company with eight North American offices and one in El Salvador.
EPA publishes CEC-removal studies database
The Environmental Protection Agency (EPA) in the USA has published Treating Contaminants Of Emerging Concern, an extensive review of recent literature on wastewater treatment technologies and their ability to remove a number of chemical contaminants of emerging concern (CECs).
Hitachi in Libyan MBR tie-up
Libyan water technology company El Zulal announced on 21 July 2010 that it has signed a sales and marketing agreement with Hitachi of Japan to distribute Hitachi's membrane bioreactor (MBR) product range in Libya.
NanoH2O announces seawater membrane factory in China
Advanced desalination membrane-maker NanoH2O is to build a fully integrated manufacturing plant in Liyang, China, a city in the Yangtze River Delta, 250 km west of Shanghai.
VA Tech Wabag wins industrial reuse plant in Gujarat
Ultrafiltration (UF), reverse-osmosis (RO) and a membrane bioreactor (MBR) will all be part of a 32,420 m³/d effluent treatment and recycling plant to be built in India by Chennai-based VA Tech Wabag.
Olympics facilities manager appointed as Tri-Tech VP
Former Siemens engineer, Weidong Bi, who managed membrane-bioreactor and reverse-osmosis plants for the Olympic Games in China, is one of three senior executive appointments announced by Tri-Tech Holding Inc on 3 June 2010.
Suez Environnement lands US$ 200 million Middle Eastern deals duo
Suez Environnement has won a desalination contract in Abu Dhabi worth more than US$ 180 million and a separate water reuse deal in Oman taking the total value of the Middle East wins to more than US$ 200 million.
Severn-Trent wins Chilean mining desalination contract
US water and wastewater treatment company Severn Trent Services has been awarded a contract to provide a seawater desalination plant that will serve the potable and process water needs of the Minera Esperanza copper and gold mine in Antofagasta, Chile.
Santa Clara votes for advanced wastewater reuse plant
The directors of the Santa Clara Valley Water District in California, USA, approved two agreements with the City of San Jose on 23 February 2010 to build a new advanced water treatment facility involving microfiltration, reverse osmosis and ultraviolet disinfection.
Santa Barbara ponders US$ 2 million subsurface intake test
Californian city, Santa Barbara, may put up to US$ 2 million into a study of a desalination facility seawater intake structure after environmental groups said the existing plant's open water intake pipe could be harmful to marine life.
RO treatment plant planned for Thai resort
A Baht 300 million (US$ 9.75 million) reverse-osmosis (RO) wastewater treatment system is being planned for the coastal resort of Phuket, Thailand.
Doyen of Japanese desalination retiring
Dr Totaro Goto, former managing director of the Water Re-use Desalination Center (WDRC) in Japan and a former member of the D&WR Editorial Board, is to retire from the center at the end of March.
MBR/RO at heart of PepsiCo reuse plant in Chile
A membrane bioreactor (MBR), reverse osmosis (RO) and ultraviolet (UV) disinfection are all part of a wastewater treatment and reuse plant upgrade being completed by Siemens Industry Automation Division for PepsiCo in Chile.
Aqua-Chem acquires RO supplier
Aqua-Chem Inc, the US-based supplier of vapour-compression and distillation desalination systems, has agreed to acquire the product lines and specific assets of Matrix Utilities Inc to add membrane technologies to its desalination range.
Wabag India lands water recycling job in Vizag
Wabag India has been awarded a € 20+ million contract for the planning and completion of a comprehensive turnkey plant water system, including a wastewater treatment plant as part of the expansion of the Rashtriya Ispat Nigam Ltd power plant in Vizag, India.
Maltese desalination test-bed shows SalTec energy-recovery advantages
Throughout the desalination industry, plant operators are looking for long-term solutions with lower lifecycle cost because of the link between water costs and energy costs. In order to meet operators' demands and requirements, equipment manufacturers are investing considerable resources in the development of new technologies that will reduce energy costs. The Water Services Corporation in Malta is one example of a forward-looking operator of a seawater reverse-osmosis (SWRO) plant seeking to ensure the production of high-quality drinking water at an affordable price. Established in 1993 to produce and distribute potable water on the islands of Malta and Gozo, WSC has an annual production target of 35 million m to satisfy the needs of its 400,000 residents and in excess of one million tourists. With the drive to produce greater efficiencies and water quality WSC has taken an opportunity to investigate and monitor the potential of a new technology from KSB, the SalTec pressure boosting and energy recovery system. The SalTec DT pressure exchanger in combination with KSB's HGM RO high-pressure pump creates a highly attractive proposition for RO plant designers and operators. The SalTec DT system provides a nominal capacity of 250 m /h, giving it the capability to operate in plants with train sizes ranging between 4,400 m /d and 5,000 m /d of permeate at common recovery rates.
Joint venture wins Perth groundwater replenishment contract
Western Australia's Water Corporation has awarded a contract to design, construct, and commission a full-scale advanced water replenishment plant (AWRP) to a joint venture between CH2M Hill,and engineering company Thiess. The project will help secure Perth's drinking water supplies through 2060
AMTA/WEF workshop set for Seattle in May
The American Membrane Technology Association (AMTA) has announced that it will be holding a Technology Transfer Workshop in Seattle, Oregon, in May in cooperation with the Water Environment Federation (WEF).
Papermaker ups water performance with Desalitech reverse osmosis
Arizona-based papermaker, Doubletree Paper Mills, said it has increased its purified water recovery by 20% at its Gila Bend plant since replacing its reverse osmosis water treatment system in 2014 with Desalitech's ReFlex RO system. The modification has also cut wastewater output by almost two thirds and lopped 25 % off energy consumption said Doubletree.
Prequalification invited for Ghubrah IWP in Oman
Submissions have been invited by Oman Power & Water Procurement Company by 17 November 2011 for qualification to tender for the development of an independent water project at Ghubrah (Ghubrah IWP) in Muscat governate.
Accusations fly in Israeli desalination chaos
Chaos still reigns in Israel over the Ashdod desalination plant, which is now the subject of accusations from the national water company Mekorot against losing tenderers Shikun u'Binui (SKBN) and Global Environmental Services (GES).
Eight bidders for Singapore's second desalination plant
Eight companies/consortia had expressed interest in Singapore's second and largest desalination plant when the tender for the project closed on 23 October 2010.
City of Sydney seeks water recycling masterplan
The City of Sydney is seeking tenders to develop a decentralised water masterplan to produce more 10 % of the Australian city's water supply from local sources.