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Mainstream Renewable Power South Africa has released the results of a technical study undertaken to estimate the scale of the country’s wind resource. The analysis, which uses Geographic Information System (GIS) technology and a state of the art Mesoscale wind flow model, concludes that South Africa has enough economically viable wind energy sites to generate 184 Terawatt hours (TWh) of indigenous, sustainable energy. Electricity demand in South Africa currently stands at around 250 TWh, coming from 44GW of installed capacity and is expected to grow to 80GW by 2025. The country is currently the 12th biggest producer of CO2 emission per capita in the world and emissions are set to quadruple by 2050 if drastic measures are not taken.

The study modelled the entire surface area of the country using GIS technology, which assesses a variety of inputs including terrain elevation, wind speed, grid line locations and urban areas, and outputs the areas where wind farms can be constructed. The company believes that up to 5GW can be built within a five year period, which would generate 13 TWh, or about 5% of the country’s current electricity demand. Strong public and government commitment combined with the right regulatory environment, wind power could easily reach 25% of the country’s current electricity demand by 2025, similar to what is happening in many other international markets.

Mark Tanton, the deputy chairperson of the South African Wind Energy Association commented “This study, once again, proves that we have a significant wind resource in the country. In order to deliver on our long-term energy future we need to take immediate action. If government is serious about reaching its renewable energy targets and finding a cost effective solutions to bolster our ailing power supply, the potential contribution from wind power projects cannot be ignored. To date Eskom has received applications in excess of 10.5GW for grid connections for wind power projects in South Africa. Once the issues around accessing the PPA are resolved, the 28 developers who have lodged these applications would be more than capable of bringing a minimum of 4GW into the system by 2013.”

Commenting on the report, Mainstream South Africa’s Davin Chown said,” South Africa is facing a serious economic and energy crises and wind energy has a significant role to play in tackling both of these issues. As a nation, we can’t afford to ignore the potential of our vast wind energy resource. We need to introduce at least 36GW of new energy capacity over the next 15 years and by using our own natural resources to plug this gap we will not only reduce our CO2 emissions by over 68 million tonnes each year, but we’ll create a whole new economic industry, particularly in rural areas, generating new jobs and empowering local communities through education, training and skills transfer.”

Dr Eddie O’Connor, Mainstream’s Chief Executive said,”There’s nothing new to this. There’s already 150GW of wind energy installed around the globe and it’s growing by 30GW per annum, employing over 400,000 people worldwide. This is a highly reliable, competitive and scalable form of power generation with zero long-term fuel risks and highly predictable long-term power generation capabilities.”

He continued,” Mainstream is prepared to invest large quantities of capital to build these sustainable energy assets, but we need to see long-term targets and a clear, investor-friendly regulatory environment. South Africa still needs transparent grid connection and queuing processes.”

“We are very encouraged by the government’s work to date to promote renewable energies and encourage new independent power producers into the market and we look forward to continuing to facilitate and work with government on these activities.”

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Construction specialist Willmott Dixon has unveiled the future of local health at the BRE Innovation Park in Watford, with a building designed to show what a community health centre of the future could look like.

As a top ten health sector contractor, the company has developed the Willmott Dixon Community Healthcare Campus to give the health industry a valuable insight into what the patient experience could be at a local level in the next 20 years. With an ageing population, the way we currently deliver healthcare will no longer be viable and there will be a real need for more localised care to help people manage increasingly complex medical conditions in their own home.

Willmott Dixon and partner Primary Asset are also using the facility to demonstrate different ways of designing and building in line with the NHS 2018 zero-carbon building targets.

At the heart of the building’s mechanical services is an M2M Maxi control system from Mitsubishi Electric which acts as a mini-BMES, controlling all of the heating, cooling, ventilation and power generation for the centre.

“The building incorporates passively ventilated consulting rooms, comfort heating and cooling, and a Lossnay RX5 heat recovery system and these all need an accurate control system to work efficiently together,” explained Jonathan Leyland, of Mitsubishi Electric’s Corporate Operations Division, which is responsible for maintaining the relationship with Willmott Dixon.

“We have also installed an array of photovoltaic panels on the roof of the centre which will generate around 11 per cent of the electricity required,” he added. Mitsubishi Electric recently launched a new PV system in the UK and this is the first installation to demonstrate its efficiency and effectiveness.

In addition to a covered roof terrace that incorporates a healthy food growing area, the building features a reception area incorporating a smartcard system that links to patients’ online records, an outdoor fitness area and a pharmacy of the future. The medical centre has been built by transforming the original ‘Re-Thinking School’ built by Willmott Dixon in 2007 to point the way towards the educational establishments of tomorrow. The new healthcare centre will be open for visits for the next two years.

“We’ve worked with contractor N G Bailey to help redesign the centre’s services so that they can achieve the year-round comfortable and stress-free climate needed to put patients at their ease, whilst ensuring that the building is as energy efficient as possible,” added Leyland.

The M2M control system is the first of its kind in the air conditioning industry to come with the unique ability to monitor other systems within a building. It offers a relatively low-cost solution for premises without Ethernet connections or with security networks and firewalls. Heating, cooling and ventilation are major energy consumers in modern buildings but we must have them to meet legislation on air quality and internal temperatures as well as match the demands of modern life.

“When a building introduces different systems, there is a danger that they can work against each other and this is where the M2M comes into its own as it allows the centre’s staff to closely monitor energy use and accurately control the building’s facilities in harmony,” ended Leyland.

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Hydropath Holdings will be displaying their range of patented water conditioning products on stand 19 at this year’s Plumbing and Heating Exhibition in Chelsea. Taking centre stage will be the HS38, Hydropath’s domestic unit, which provides a simple and cost effective solution to preventing limescale problems without the use of chemicals. The HS38 unit is sold across 5 continents, and has particular success in America replacing water softeners, as the US has become more eco-friendly due to governmental directives.

The HS38 patented water conditioning system by Hydropath is unique as it removes limescale by transmitting randomly varying electric fields into the water and the entire plumbing system. The result is the production of nuclei everywhere in the water system. This causes limescale to form in suspension, which is then washed away with the flow. The treated water is normally able to dissolve existing scale in a few weeks.

The HS38 is suitable for use in most domestic applications including open vented combination boilers, condensing boilers, mains pressurized unvented and direct fired water heaters. The unit is simple to install, simply clipped onto the exterior of the pipe without the need for plumbing or incision. The HS38 also benefits from low running costs of only 90 pence a year, does not require any ongoing maintenance, has a 1 year ‘fit for purpose’ warranty and 3 year guarantee.

Two power supply options are available for the HS38; including a built-in supply, which needs to be wired in, or a plug-in style transformer that uses a mains power supply. Hydropath technology is recommended by British Gas and installed as an OEM by leading boiler manufacturers.

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Mitsubishi Electric has used its annual sales conference to congratulate its major business partners for outperforming the market during the current recession but also highlighted the need to cross traditional boundaries and enter new markets using the energy saving potential of heat pumps.

Commercial director Donald Daw, told delegates to the BSP (Business Solution Provider) Annual Conference in Daventry, that whilst the air conditioning market had dropped 12% over the previous year, Mitsubishi Electric and its major customers had increased market share.

“This has happened during the toughest economic times we’ve ever seen and our success is due to a combination of the quality of your installations, the developments in energy efficiency of our products and the strength of the relationship we have,” he told the audience of over 150 attendees.

The construction industry has been hit especially hard by the recession but the reasons behind the drop in sales of air conditioning is not entirely linked to the current economic turmoil Daw explained: “Our research shows that market growth in single and small splits systems is very dependant on weather patterns – for the past 2 years we have experienced cool summers in the UK and small businesses have no memory of substantial discomfort caused by warm weather – a normal summer in 2009 should see a return to growth in the small spits market ”

In the larger system and VRF markets, Daw warned that the dramatic impact of the recession on the construction industry will have much longer term implications: “As an industry we have seen double-digit growth in the VRF market for many years and we had started to see this as the norm,” he explained.

“We shouldn’t be surprised that in these tougher economic times businesses are cutting back on capital intensive building refurbishments,” he commented. “The market will bounce back strongly as soon as the investment cycle begins again – the suitability of VRF products for heating and cooling modern buildings has not changed.”

Daw warned that the tougher trading conditions will mean changes in the supply chain and weaker companies leaving the market. He also highlighted how the traditional boundaries between ‘heating,’ ‘ventilation’ and ‘air conditioning’ were now overlapping, with manufacturers from other sectors looking to enter the air conditioning market. He saw this as both a challenge and an opportunity.

“As an industry, we must look to expand our reach and highlight how beneficial heat pump technology can be in addressing the need for lower energy bills and carbon emission reduction,” he explained. “We can do this by moving into the mainstream heating industry and away from being classed as a cooling-only industry. There is already a general blurring of the boundaries and we all need to be ready to step over those boundaries.”

Daw also explained that as a company, Mitsubishi Electric is developing the technology to put heat pumps into as many heating applications as possible, as heat pumps will be one of the key technologies in helping the country achieve the CO2 emission reduction targets that are required, while still allowing users the convenience and comfort they demand. The company is also moving further into the micro generation sector with the launch of Photovoltaic systems and has already established a strong brand in the residential ‘renewables’ sector with its low carbon, Ecodan® air source heat pump.

“We need to find new markets for our technology and skills and heat pumps used in the wider heating industry are an important part of that opportunity,” he ended.

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Fakro GB specification clauses are now available via NBS Plus. This enables concise, technically accurate and up-to-date information in relation to the company’s extensive and growing range of roof windows and roofing accessories to be copied and pasted including its newly launched solar system. MD Noel Shanahan commented, “We believe that the growing interest in our roof windows will continue and the amount of specification detail advice our technical sales staff already provides meant that it was the right time to enable our products to be specified in this way”.

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