BIM for Construction is the future
This article was published on Mar 2014 in Building Review Journal Vol 29 No. 2.
Text by Delene Lee, Images by Tekla.
Over the past 5 years, Asia Pacific has become the largest market for the concrete and cement industry, accounting for 58.1% of the global market. Developing economies in the region, especially China, India and Indonesia, are expected to support the expansion of the concrete and cement markets, due to the rapid development of infrastructure and an increase in residential construction.
With such a large and competitive market, contractors and engineers are on a never-ending quest to save time, reduce waste, and ultimately cut down costs.
How can BIM help these companies to reach those goals?
Today, architects and builders are increasingly embracing the benefits of BIM. The days of old-fashioned computer-aided design (CAD) and marked-up drawings are numbered. The future of construction is with BIM.
Unlike plain-vanilla CAD, BIM software creates a three-dimensional (3D) model full of smart objects embedded with information. BIM makes it easier to integrate architecture with engineering work, avoid “clashes” of building elements, instantly output lists of materials and labour, and automate valuable tasks like simulating the effects of sunlight in an interior space. With such details, BIM ultimately cuts down on rework and errors on site, leading to lower costs.
In a recent exclusive interview with Mr. Andy Dickey, he shed some light on how BIM helps the various stakeholders in the construction value chain and justifies the common barriers of adopting BIM. He also shares about a BIM software that one can download and use for coordination and communication on a project – for free, which is great for those who have yet to experience what BIM has to offer.
Andy is currently the CIP Concrete Business Development Manager for Tekla, a Trimble Company, based in Espoo, Finland. With extensive experience in the cast-in-place concrete industry, he now focuses on delivering BIM (Building Information Modeling) solutions for use in all phases of CIP Concrete Construction to Tekla Corporation customers worldwide.
BRJ: Who should adopt BIM Technology?
AD: We have quite a lot of stakeholders in the construction industry, but it is mainly these four categories of people: architects, engineers, contractors and owners (A,E,C,O). Tekla is particularly focused on engineers and construction professionals.
BRJ: What are the benefits that BIM deliver at every stage of the construction process?
AD: I think one of the biggest problems over the years has been productivity. One of the leading causes for that is really bad information… also known as drawings. So, BIM is a vehicle for a superior way to communicate amongst all the projects stakeholders; as communication and information can really affect productivity greatly. Particularly important in a market like Singapore, similar to the States, which has quite a lot of international workers in the construction field, and 3D is really a superior way to communicate with people that speak different languages.
BRJ: How can BIM make an impact in the Asia Pacific construction sector?
AD: One of the most prevalent forms of construction in Asia Pacific is reinforced concrete. Tekla is quite strong in providing BIM tools in this area. It is traditionally something that is very difficult to coordinate between various disciplines like mechanical electrical plumbing, fire protection, including all the reinforcing. As that part of BIM is growing, I think that particularly helps the Asia Pacific region because the reinforced concrete material type is so prominent.
BRJ: How is Tekla’s BIM solution different from its competitors’?
AD: I would say the primary difference is the fact that we offer solutions end to end. What you tend to see are tools that focuses on either design or pre-construction, or construction. But, Tekla is really in the verticals that we occupy – which is structural steel, precast concrete, reinforced concrete, we offer the solution end to end.
One of the reasons why productivity is so bad is because you are passing drawings downstream at every one of those stages that I’ve mentioned – from design all the way to construction. With Tekla, you can pass a model, so you don’t have this loss of information. You are not passing bad information from one stage to the next; you are passing really good information in Tekla, all the way through the process. That is what makes us different. We can tie the process together end to end, digitally.
BRJ: Does it require the all the various stakeholders to be trained in BIM technology to be able to work cohesively on a project?
AD: Yes, but the training you receive as construction engineers is quite different from a site supervisor, so it really needs to be tailored to the way in which they are using the software. And that is one of the things that we did. Engineers are learning about our analysis in design capability, while the site supervisors are probably not – they are just learning how to pull out quantities for how much concrete they need to order.
We configure different interfaces to match different needs of the various stakeholders – such that they don’t see certain buttons that they don’t need. It avoids confusion. The training is compartmentalised as well and that really helps make it easy. Even if they are just using models in a basic way, they can still work effectively.
BRJ: There are costs and required BIM-related training involved that can deter some companies from going forth to adopt this technology. What advice would you give to them?
AD: That’s a challenge in many markets and capital expenditure is always a concern, especially what we have been through the last few years of the economy slowing down. Now, with the economy speeding up, it has a new set of challenges – cash flow is an issue. They have to know that the return on investment (ROI) is definitely there. And it is a very quick ROI. If they don’t allocate the capital expenditure, they put themselves at risk going forward, as their competitors are doing that and significantly lowering their costs.
The cost of the software is actually the lowest amount of money that they are going to spend. Companies spend the most of their money on the people; training employees (which extends beyond BIM-related training), paying their hours etc. Hence, a small investment tool like Tekla is a small price to pay to magnify the productivity of the human capital. It can really multiply the effectiveness of that person.
BRJ: You mentioned a very quick ROI…do you have any examples to justify how long the payback is, in financial terms?
AD: We don’t reveal those statistics as it is difficult to be really specific about it. However, based on the feedbacks from our customers, they are telling us that it is very quick. You could check out some of our case studies, it is very detailed on what they did and how they implemented the software as well.
(Editor’s note: Those case studies found on http://www.Tekla.com/references)
BRJ: Is BIM technology appropriate for retrofit projects?
AD: Definitely! It is appropriate for renovations, retrofits, and additions. Tekla is a trimble company, which does so many things. But one worth noting is the positioning technologies. You could actually find out the position of the existing structure or elements and bring that information back into Tekla. The result of that is one of two things – with the total station you get the centre points and with the laser scanner you get a 3D model. You can bring either one of that into the Tekla environment and model the new stuff relative to where the old stuff is.
We get a lot of feedback – we have a case study coming out later in the year, a customer in the States, doing a project on a senior-living facility. They built drawings instead of using the drawings that they got from the City. Those drawings didn’t match where the existing building was supposed to be. But they were able to use the tools to properly locate it and accuracy became a non-issue.
BRJ: Are there any current key events or factors that would drive the adoption of BIM technology in the Asia Pacific region?
AD: They are the ones that I have already mentioned – communicating across quality information, overcoming language barriers, and productivity. Productivity is always a concern. Especially when you have hyper-growth rates that you see in some of the markets in Asia Pacific, it is a way to better manage that growth with a limited supply of resources. In some markets, labour is cheaper than the others, but good labour is always a limited supply at any price. The models can really enable quality work at almost any experienced level.
BRJ: What are your thoughts on future technology and trends predicted with BIM?
AD: It is all up from here – BIM for construction is probably the biggest growth area – particularly, in the area of connecting from design and detailing to the construction site.
A lot of what the designers BIM would be conceptual, because it’s to the level of detail that they need. But with Tekla, you get all the construction level of detail – every piece of reinforcing bar, cast, and all other tiny details on a project wide basis. You end up with a really detailed model but having the tools to make sure it really happens that way in reality – connecting the reinforcing bar information in the model to the machine that makes it, or connecting the position of things in the model to the robotic total station out on the site –that’s the next big thing and that’s the area that we are really strong in and heavily investing in.
BRJ: Is BIM stable at the moment or is it still developing?
AD: Its stable, but whenever you develop something, people want more. We see all sorts of ways to improve all the time as we engage with our customers. They provide us the shining light to see where to go to next.
BRJ: Do you have anything else you would like to share?
AD: Tekla has two main product lines – Tekla Structures it’s a tool you pay if you are in any of those interest groups that we were discussing, we also have Tekla BIMsight which is a free BIM tool that anybody can download and use and it’s a professional grade and I would recommend for anybody to download it and try it out.
BRJ: How long is it free for?
AD: Forever! Doesn’t mean it won’t change (eg. adding things to it). Our intention is to keep it free. It is a coordination tool, you can mark up, and it comes with a sample project. I really strongly encourage it to those interested in BIM and who doesn’t want to run out and spend a whole lot of money tomorrow or maybe next week right? (laughs)
BRJ: So then people won’t have to purchase BIM software anymore?
AD: Well…it addresses a few workflows, but you cannot make models with it. It is just to give people a taste on what they can do and what to expect. If they are already heavily involved in BIM, it is also a tool they can use for coordination and communicating on a project. The website is Teklabimsight.com, if anyone wants to check that out!
AD: Another thing I would like to add is that continuing to work in 2D drawings is the root cause of the lack of productivity. We really won’t see the productivity curving up until we move away from drawings as being is the only source of information on the project.
Students from Spain Wins Global Schindler Award
The winners of the first Global Schindler Award are students from “Escuela de Ingenieria y Arquitectura” in Zaragoza, Spain. The award presentation was held in Shenzen, China on April 30, 2015.
2015 is the first year that the former Schindler Award, active since 2003, has gone global as a partnership between Schindler Group and the ETH Zurich. The Global Schindler Award is an urban design competition open to students of architecture, landscape architecture, urban design and planning. The task of the competition was to create an urban design-based response to a specific brief about Shenzhen. Over 200 projects made it through pre-selection. Twelve winners were selected, with the three top prizes going to teams from Spain, China and France. A total of US$150,000 was awarded, including a first prize of US$50,000 for the winner. The official award ceremony was held in Shenzhen on April 30th 2015, where the final ranking of prizes best online casino was revealed.
The Global Schindler Award looks for unconventional approaches, innovative urban design strategies and architectural concepts for livable, mixed-use, high-density urban environments. “We are extremely proud that the first Global Schindler Award was such a success. We at Schindler are convinced that young talents will play the most important part in our future,” says Silvio Napoli, CEO of the Schindler Group.
The official Global Schindler Award website, including the results of the 2015 competition can be found here: http://www.schindler.com/award/internet/en/home.html.
A 100-page book developed by Schindler containing essays about “Future Cities” alongside the students’ project submissions can also be ordered from the website.
QBE Singapore Launches New Construction Insurance Product
One innovative policy with widest coverage and most comprehensive solutions
Construction companies in Singapore seeking to protect their mobile plant and equipment have for the first time access to a single insurance package offering bespoke protection to meet their specific needs, following the launch of an innovative insurance solution by QBE Insurance (International) Limited – Singapore Branch.
By providing the insured with more convenience, greater coverage and better leverage for the premium paid, QBE’s novel insurance package Industrial Special Plant (‘ISP’) reflects QBE Asia Pacific’s strategy to introduce solutions that better serve customer needs. ISP is a policy which can replace up to five standalone policies for policyholders, reducing both intermediaries’ and clients’ administrative costs. No other insurer offers such a comprehensive package in Singapore.
ISP offers five key options (see table 1), three of which are completely unique and new to Singapore. The options relating to ‘Hired-in Plant’ with ‘Additional Benefits’ such as ‘Employees’ Property Damage’ and ‘Financial Protection’, are all features of ISP previously unavailable in the Singapore market’s standard machinery all risk policies.
Another unique and important feature of ISP is that it provides clear-cut savings simply by having one deductible for one policy that offers multiple coverage, instead of far more costly multiple deductibles with multiple policies which to date have characterised the market in Singapore.
“ISP isn’t comparable to the existing insurance options in Singapore,” said Karl Hamann, Chief Executive Officer, QBE Singapore. “It provides construction companies with a comprehensive solution and the widest coverage at one go, reducing their administrative work from application to claims processes. It also offers a means to leverage the premium spend and negotiate better terms.”
ISP is the first and only policy in Singapore that provides such extensive covers for construction companies, machine owners or hirers with a comprehensive solution, considering all the risks associated in owning, operating or hiring these machines.
Until now, intermediaries in Singapore have typically had to purchase individual insurance policies, sometimes from different insurers, to provide a complete insurance solution for the insured. This presents significant risks to the intermediaries and the insured, because gaps in coverage may go unnoticed leading to claims disputes between different insurers causing delays in settlement, increased workload and greater cost.
“The complicated approach that has existed to date creates delays in settlement which ultimately cost companies money from disruption,” added Karl. “The comprehensive insurance package ISP provides is to reduce the risk of errors and omissions or claims disputes. It ultimately serves the companies’ needs more effectively by offering flexible choices of insurance.”
In Singapore, insurers offering contractors plant and equipment insurance base their premium usually on the ‘new replacement value’ of the equipment regardless of its actual value. Yet, if the machine is destroyed (declared a ‘total loss’) in an event, the insurer only pays its ‘actual value’ prior to the loss and not the ‘new replacement value’. So the policyholder doesn’t actually get the cover for which it paid a premium.
“ISP clearly makes better financial sense. It allows the policyholder to insure the machine for its current market value and, in the event of the machine being destroyed, ISP pays the current market value,” said Karl. “QBE is the only insurer in the market that allows the ‘market value’ as sum insured in the standard policy.”
“The Government will commit a further S$450 million over three years to raise productivity in the construction sector. This adds to a previous S$335 million in funding for the same purpose, set aside in the last five years. With this increase in the government spending to promote mechanisation and improve productivity in the industry, we anticipate that there will also be a surge in the demand for construction insurance coverage. The ISP solution that we have just introduced is poised to cater for the surging demand,” added Karl.
ISP was developed over the past 40 years as a specialty insurance product by Underwriting Agencies of Australia (UAA), where it was very well received in the marketplace. UAA are experts in mobile plant and machinery insurance.
QBE launches its ISP product in Singapore following its launch in Hong Kong last year because both cities are Asia’s leading financial hubs with massive construction activities in both countries where there are significant growth potential for the products. ISP is offered to any business that owns or operates mobile plant and machinery from small proprietors to large multinational corporations.
JCB Moves Debris at Nepal Quake Zone
JCB today moved to support the relief effort in earthquake-hit Nepal with the donation of diggers and electrical power generators worth around $1 million.
Ten backhoe loaders were made available immediately to the Nepalese Army and are now at work in the areas worst hit by the disaster which has left more than 5,000 people dead and 10,000 injured.
JCB Chairman Lord Bamford said: “It is shocking to see the devastation caused by this earthquake and the resulting widespread damage and destruction. On behalf of JCB, I express my heartfelt condolences to everyone affected by this natural disaster. JCB will continue to online casino help the Nepalese Government in every possible way.”
JCB supplied the backhoes through its dealer, MAW Enterprises Pvt Ltd, in Nepal. The electrical power generators are also en route from JCB India’s factory in Delhi to help stricken communities caught up in the quake.
The JCB backhoe loaders have been deployed to help ground relief efforts in the aftermath of the earthquake which measured 7.8 on the Richter Scale. In the coming weeks and months, the donated machines will be used in reconstruction efforts.
JCB has a long history of helping countries affected by major natural disasters, providing $500,000 worth of machines and generators to the Philippines when Typhoon Haiyan struck in 2013. Machines were also donated when earthquakes struck in Haiti in 2010 and in China in 2008 and to southern India, Sri Lanka and Indonesia in 2004 following the Boxing Day Tsunami.
Experience 3D Printing
Ido Eylon is the General Manager of Asia South, Stratasys Inc., he is responsible for the overall operation of the business while ensuring sustainable growth of the 3D printing business across Australia, Southeast Asia and India.
Ido started his career at Stratasys as an Applications Engineer in the company’s headquarters in Rehovot, Israel. He has gained extensive experience with the company’s technology and its applications across various industries and has collaborated with many of Stratasys’ customers from diverse trades. Ido has also assisted in a variety of projects to further expand and implement the applications and use of Stratasys products in numerous areas. By taking part in these activities, Ido contributed to discovering new and innovative solutions for Stratasys products. He has also been invited to speak at many events to spread and share his in-depth experiences.
Ido holds a Biomedical Engineering degree in Ben Gurion University.
At a recent launch of Stratasys’ new 3D Printing Experience Centre, Building Review Journal had an exclusive interview with Ido, to share more about how 3D printing can impact the architecture industry.
BRJ: How have Stratasys’ customers in the architecture industry in the region and other parts of the world benefited from 3D printing?
Ido Eylon: Architectural bureaus can save a significant amount of time because 3D printers can achieve the characteristics of a model much faster, especially when complex geometries are in question. Architects can also easily validate designs and make good decisions earlier before committing to a final model because of the product realism. With the latest Connex3 released earlier this year, Architectural bureaus benefit from color printing and more productive and efficient printing processes with three different base materials ready-to-print on a single job.
The following are case studies that showcase the value of 3D printing to the architecture industry:
1) Seoul, Korea: Modelzium Architectural Modeling Firm Enhances Competitiveness with Objet 3D Printer Modelzium purchased the Stratasys Objet Eden350TM 3D Printer and were impressed by the fine details and smooth surface finish of the printed models. Compared to the previous CNC and manual method, by using 3D printing technology model turnaround time has been reduced by 30 percent for simpler designs and 50 percent for more complex designs. Another benefit Modelzium mentioned was that by using 3D printers to produce architectural models, they were able to cut production cost by 30 to 50 percent.
2) Toronto, Canada: McCann Architecture Architectural Modeling Firm Builds Scale Model of
Stunning Abu Dhabi Edifice with 3D Printing. Peter McCann Architectural Models Inc. (PMAMI) uses Stratasys 3D printers in order to be able to provide their customers the best architectural models possible. One of their clients was Chicago-based Smith+Gill Architects for whom they created a large model of Masdar Headquarters, the world’s first large-scale positive-energy building that generates more energy than it consumes. Stratasys 3D printers helped Smith+Gill to print a model that included multiple helix-shapes that needed to be both precise and strong because they were structural. Without the printer it would not have been possible for them to build the free-flowing roof for the Masdar HG model.
BRJ: What is Stratasys’ vision for the new Demo Centre in Singapore and the value it brings to customers/prospects in the region?
Ido Eylon: As a leading 3D printing industry player, Stratasys recognises the importance of implementing a global strategy in local context. Establishing a 3D Printing Experience Centre in Singapore allows our customers to see our innovative technologies in action and realise the values and advantages of 3D printing technology. A local demo center allows us to provide local support and offer accessible 3D printing solutions to serve the growing needs in South Asia and Pacific region. The establishment is also well aligned with our corporate vision to make 3D printing more accessible and to help customers revolutionise their product design and manufacturing processes. The demo center showcases the full technology portfolio ranging from desktop 3D printers to large, advanced 3D production systems, thus enabling designers and engineers to create models and prototypes for new product design and testing and to build finished goods in low volume.
While Asia-Pacific is the fastest growth engine of the Stratasys, contributing 21% of the company’s revenue (as at Q2 2014), Stratasys is committed to continuing its investment in the region to sustain the momentum.
The company has over 2,500 employees globally with approx. 200 based in Asia. Stratasys has a strong local presence in Asia with 8 offices in the region. Stratasys is confident about the future growth of the 3D printing market in Asia and continues to invest in strengthening its sales, marketing and channel infrastructure in the region and globally.
BRJ: What materials can 3D printing produce?
Ido Eylon: Stratasys offers a range of additive manufacturing materials, including clear, rubberlike and biocompatible photopolymers, and tough high-performance thermoplastics. This variety lets users maximize the benefits of 3D printing throughout their product-development cycle.
Two leading 3D printing technologies including:
Fused Deposition Modeling (FDM) Technology works with production-grade thermoplastics to build tough, durable parts that are accurate, repeatable and stable over time.
PolyJet Photopolymers offer fine detail along with final-product realism surpassing all other 3D printing technologies. They exhibit a chameleon-like ability to simulate clear, flexible and rigid materials and engineering plastics — and even combine many colors and material properties into one model.
BRJ: Stratasys recently launched a new product, can you share more about that?
Ido Eylon: Yes. In February this year, Stratasys launched the latest printer, the Objet500 Connex3 printer which enables an incomparable product realism and enhanced functionality with the revolutionary three-base-material capability.
The printer features a unique triple-jetting technology that combines droplets of three base materials to produce parts with virtually unlimited combinations of rigid, flexible, and transparent color materials as well as color digital materials – all in a single print run.
The Objet500 Connex3 lets users build rigid, rubber-like and clear parts into one model and offers hundreds of composite materials, blended right in the 3D printer. There are three color base materials – VeroCyan, VeroMagenta and VeroYellow – which are combined to produce hundreds of vivid colours. It eliminates secondary operations, such as assembly and painting. And when combined with Stratasys’ extensive range of PolyJet photopolymer materials including digital materials, rigid, rubber-like, transparent, and high temperature materials, Connex3 helps users to produce prototypes which simulate standard and high temperature engineering plastics.
Connex3 can simultaneously build as many as 46 hues/ material characteristics into an individual part, assembly or multi-part job in a single process.
BRJ: How is 3D printing different from the traditional modelling methods?
Ido Eylon: 3D printing is complementary to traditional manufacturing methods and benefits the users in many ways such as:
Shorter Time-to-Market: Users can print an assembled part without assembly or painting which is a significant time-saver. It helps architectural bureaus to validate designs and make good decisions earlier before committing to building.
Minimize costs-of-errors: prototypes can be created in a cost-effectively manner, allowing design reiterations prior to project initiation.
Confidentiality: Having an in-house 3D printing system would minimize the risk of design leakage.
Liberate Creativity: The ability to print complex geometries, and even more so with three different base materials simultaneously expands both the number of materials available and the number of combinations in an individual part. With a wide range of advanced material option and dozens of composites, user’s designs will come to life as realistic models, with materials characteristics like colours, rubber-like and transparency, earlier in the design process.
Optimized model development process: Stratasys printers enable to print out models that look like the final building. Fine feature quality provides high detail and smooth surfaces to create brilliant, precise 3D models. The product realism enables designers to build models with final product quality, not only to impress the audience in a pitch, it also helps to eliminate costly design errors at early stage of the model development process.
Construction Leaders Sharpening the Future Outlook for Sustainable Construction in Malaysia
Deputy Minister of Works, YB Datuk Rosnah Binti Abdul Rashid Shirin as well as the Secretary General of the Ministry of Works, Dato” Sri Zohari bin Haji Akob participated in the discussion, providing information in line with national policies and implementations.
Present at the discussion were MRCB Group Managing Director, Tan Sri Mohammade Salim Fateh Din, MMC Corporation Berhad Group Managing Director, Dato” Sri Che Khalib Mohamad Noh, IJM Corporation Berhad CEO and Managing Director, Dato” Soam Heng Choon, UEM Group Berhad Group CEO and Managing Director Dato” Izzaddin Idris, WCT Holdings Berhad Executive Director, Mr Liang Kai Chong, Gamuda Engineering Sdn Bhd Managing Director, Mr Ubull Din Onn and Sunway Construction Senior Managing Director, Mr Kwan Foh Kwai.
Also present were the organiser of ICW and Ecobuild Southeast Asia, CIDB Malaysia Chief Executive, Dato” Sri Ir. Dr. Judin Abdul Karim and United Business Media (M) Sdn Bhd Managing Director, オンライン カジノ Mr M. Gandhi.
Mr M. Gandhi praised Malaysia in terms of being at the top level of acceptance in sustainable construction with many development projects. “With that outlook in mind, Ecobuild is here to serve as the business platform, and an information exchange powerhouse to cater to every single need in sustainable and green concerns. It is a matter of time that sustainability will takeover the industry by storm,” he added.
First introduced in London, Ecobuild began its Southeast Asia chapter in 2013 running along with International Construction week. The exhibition showcases a sustainable design, construction and built environment, and will run concurrently with co-located events Green Build Asia, Eco Light Asia, Solar Asia Expo, ASEAN Real Estate, Infrastructure Summit 2015 and Construction Showcase. On the other hand, ICW is the largest and most important event in the industry covering the full spectrum of construction in Malaysia and Southeast Asia. 2015 marks ICW”s 14-year history of bringing construction industry players together under one roof.
ICW and Ecobuild Southeast Asia 2015 will take place from September 9-11 at the Putra World Trade Centre.
Johnson Controls create a greener Zhejiang province
Johnson Controls is forming a strategic alliance with Zhejiang Jianke Building Energy Conservation Technology Co., Ltd (Zhejiang Jianke) that will help the province of Zhejiang achieve its “green” goals and ensure the sustainable development of the province.
Under the agreement, Johnson Controls, a global multi industrial company, will leverage its wide range of products and technology and project management experience, along with Zhejiang Jianke’s local service and support capabilities, to help customers meet their targets for energy efficiency. The alliance will help customers achieve LEED green building certification and other related green buildings certification. Zhejiang Jianke, a subsidiary of Zhejiang Academy of Building Research & Design Co,, Ltd, specializes in building energy audit, diagnosis, monitoring and retrofit. The company also has a strong local network and rich experience in energy retrofit for buildings.
Construction is the second most energy-intensive sector in China. With green building accounting for less than 10 percent of existing structures, there is huge potential for energy efficiency projects. The 12th Five-Year Plan drafted by the Chinese government in 2011 emphasized the importance of energy saving and proposed a goal of 16 percent reduction in energy saving and emission reduction initiatives. The partnership between Johnson Controls and Zhejiang Jianke supports these national and provincial-level initiatives by helping buildings in Zhejiang increase energy efficiency by up to 30 percent.
“Johnson Controls is an industry leader in building efficiency and we are delighted to work with them on a green building energy-saving management and optimization program,” said Yi Lin, General Manager, Zhejiang Jianke Building Energy Conservation Technology Co., Ltd.
Johnson Controls helped the Northstar Delta Office Tower in Changsha City, China, achieved two prestigious green building certifications and cut energy consumption by 28 percent. The certifications include LEED-CS, issued by the U.S. Green Building Council, and the Green Building Evaluation Label, a program managed by the Chinese government that evaluates projects to make sure they conform to standards set for green building.
Johnson Controls is committed to working with local partners across China to achieve sustainable development for the country. The company has more than 42 branch offices in China, with three offices in the Zhejiang province (Hangzhou, Ningbo, Jinhua). More than 3,000 buildings in China use Johnson Controls’ solutions and services, including HVAC, refrigeration technology, building automation and energy retrofit.
“China is Johnson Controls biggest growth market and this partnership highlights our commitment to creating a safe, comfortable and sustainable environment,” said Elvis Chan, vice president of business development, Johnson Controls Building Efficiency Asia.
Johnson Controls’ commitment to growth in China is evidenced by the construction of its second global headquarters located in Shanghai, which will open in 2017.
Alliance will see both parties join forces to improve energy efficiency of buildings by up to 30 percent.
Clean and Renewable Energy
Solar Photovoltaic (PV) is perhaps the first thing that comes to people’s minds on the subject of clean renewable energy. PV technologies convert energy from sunlight into direct current (DC) electricity. They provide an ideal sustainable energy solution for remote rural areas, where it is neither technically feasible nor economically viable to extend grid coverage to isolated areas. However, in developed urban cities, it is common to find PV systems installed in buildings and on rooftops as well.
Globally, PV demand has been on an upward trend. Especially in recent years, the demand accelerated as the price of the commonly-used PV material – crystalline silicon – took a plunge from $4/watt in 2008 to $2/watt in 2010. Today, it even costs less than $1/watt, and observers foresee that the prices will fall further. The sharp drop in prices is largely due to innovations in PV technologies and manufacturing automation. This price movement stands in contrast with the rising cost of electricity as fuels are being depleted.
The growing preference for choosing sustainable solutions has also egged on the PV market. This is due to a combination of reasons such as the on-going global struggle to reduce carbon emissions, government incentives, schemes to encourage green building, and higher capital value for buildings with green certification.
An Overview of PV Technology
In general, PV materials are mainly categorized as crystalline silicon(c-Si) or thin film. They are judged on two basic factors – efficiency and economics – to determine which application is best. These materials are further subdivided into different categories which provide different efficiencies.
Crystalline silicon (c-Si)
For remote installations where the space available for PV panels is often quite limited, the greater conversion efficiency of c-Si technology has the advantage. C-Si modules represent 85-90% of the global annual market today.
C-Si modules are subdivided into two main categories: single crystalline silicon (Sc-Si) and multi-crystalline silicon (mc-Si). Sc-Si panels should be used when a higher voltage is desirable. This would be when the DC power has to travel some distance before being utilized or stored in a battery bank. These panels are also the most efficient in PV technology, averaging 14% to 17% efficiency. In comparison, mc-Si panels have efficiencies of 12% to 14% but they can often be purchased at a lower cost per watt than sc-Si panels.
Thin film technology
While thin film panels are cheaper than c-Si panels, it is worth noting that the conversion efficiency of thin-film panels is lower and tends to drop off rather rapidly in the first few years of operation.
Thin films are subdivided into three main families: amorphous (a-Si), Cadmium-Telluride (CdTe), and Copper-Indium-Gallium-Selenide (CIS/CIGS). Depending on the technology, thin-film module prototypes have reached efficiencies of between 7–13% and production modules operate at about 9%. Performance deterioration must be taken into account when assessing the array for a multi-year project. However, there are still applications where the lighter weight and greater flexibility of the thin-film panels may be more suitable. Thin films currently account for 10% to 15% of global PV module sales.
Types of PV Systems
There are different types of systems in which the PV modules are integrated. Solar PV systems are mainly divided into grid-connected / grid-tie systems and off-grid / stand-alone systems.
For grid-connected systems, the PV system operates in parallel with the public electricity network. In general, most of the PV systems installed in developed countries are grid-connected.
If connection to the grid is not possible, or if there are no electricity mains, then the PV systems are installed as stand-alone systems.
Thin film technology
While thin film panels are cheaper than c-Si panels, it is worth noting that the conversion efficiency of thin-film panels is lower and tends to drop off rather rapidly in the first few years of operation.
Thin films are subdivided into three main families: amorphous (a-Si), Cadmium-Telluride (CdTe), and Copper-Indium-Gallium-Selenide (CIS/CIGS). Depending on the technology, thin-film module prototypes have reached efficiencies of between 7–13% and production modules operate at about 9%. Performance deterioration must be taken into account when assessing the array for a multi-year project. However, there are still applications where the lighter weight and greater flexibility of the thin-film panels may be more suitable. Thin films currently account for 10% to 15% of global PV module sales.
Building Integrated Photovoltaics (BIPV) System
Building Integrated Photovoltaics (BIPV) is the integration of PV into the building envelope (eg. windows, walls, or roof tiles etc). It allows for seamless integration into a building’s design. BIPV products work particularly well for new building construction or a significant remodeling. The PV modules serve the dual function of being the building skin – replacing conventional building envelope materials – and power generator.
BIPV systems should be adopted where there is energy-conscious design, and where equipment and systems have been carefully selected and specified. They should be viewed in terms of life-cycle cost, and not just initial, first-cost. The overall cost may be reduced by the displacement of inefficient building materials and labor. Design considerations for BIPV systems must include the building’s use, its electrical loads, its location and orientation, the appropriate building and safety codes, and the relevant utility issues and costs. However, as BIPV panels are made for both photovoltaic and thermal collection systems, designers often place both technologies side-by-side to further maximize efficiencies.
Evolution of PV Demands
According to a report[1] “A Snapshot of Global PV 1992-2013” by International Energy Agency (IEA), preliminary market data shows that there is a growing market in 2013, for the first time in two years. At least 36.9 GW of PV systems have been installed and connected to the grid in the world last year. While these data will have to be confirmed in the coming months, some important trends can already be discerned:
- The global PV market grew to at least 36.9 GW in 2013, compared to around 29 GW in the last two years.
- Asia ranks in first place in 2013 with more than 59% of the global PV market.
- The market in Europe has decreased significantly from 22 GW in 2011 to 17 GW in 2012 and 10.3 GW in 2013. For the first time since 2003 Europe is no longer the top PV market in the world.
- The Asian markets experienced the highest growth (+170%) and China took first place (with an estimated 11.3 GW of grid connected PV systems), ahead of Japan (6.9 GW1) and the USA (4.75 GW). The first European country ranked fourth, with 3.3 GW installed is Germany.
- In the top 10 countries, 4 are Asia-Pacific countries (China, Japan, India, Australia)
“Asia ranks in first place in 2013 with more than 59% of the global PV market.”
The top 10 global PV markets alone accounted for over 80% of end-market demand in 2013. Looking at last year’s growth rates of these countries in 2013, it shows a distinct trend that end-market demand is shifting away from Europe and towards Asia. In fact, the three fastest growing markets in 2013 were Japan, China, and Thailand, each more than doubling their end-market demand levels over the previous year. Conversely, three of the top European markets saw end-market levels decline in 2013, with only the United Kingdom showing growth.
While Europe still represents a major part of all installations globally, Asia’s demand started to grow rapidly in 2012 and this growth was confirmed in 2013. It reached 59% of 2013 installations while Europe went down from 82% in 2010 to 28% in 2013.China has announced the installation of 11.3 GW of grid-connected PV in 2013. According to Chinese figures, the installations could have been even higher than that but some uncertainty remains on whether these additional PV systems have been connected to the grid or not. In any case, Chinese PV installations have set a new record in terms of new installations, above the 9.3 GW reported in Italy in 2011. This performance is in line with the ambitions of the Chinese authorities to continue developing the internal PV market, pushing for 35 GW by the year 2015 and 100 GW by 2020.
Japan was the second market for PV in 2013 with an estimated 6.9 GW of PV installations. While final numbers could slightly differ, this shows a dramatic increase in both countries compared to 2012.
In Asia, after the two market leaders, Thailand continued to grow, with 317 MW installed in 2013 and 704 MW of total capacity. Other markets continued to grow at a slower rate, such as Taiwan (170 MW), Malaysia for the second year of its feed-in tariff system (42 MW), as well as a few others.
Asia is undoubtedly the new focal market for PV.