 Good day to all of you, we are students from Vachnadasanthas Academy of Architecture and IIT Bombay. We are part of a team called Team Shunya which is participating in a competition called the Solar Decathlon Europe and we have an agenda of trying to increase the awareness in the entire country about green buildings, about responsible energy use, about energy efficiency and that is the reason why this workshop is being conducted. So we just quickly go through our project of building a solar powered house which is sustainable and cost effective. So starting with a bit of information about the competition. So a few facts about the competition, it is a competition organized by the United States Department of Energy. It was started in 2002 in the USA and has been held by nearly ever since. The objective of the competition is to design and construct a fully functional house powered by solar energy. So we are not just designing the house in concept, we are actually going to build a full life size house. It will be a full scale model complete with all systems which are functional and people are going to, 4 to 6 people will be able to live in it. This house will have a lot of features which we will get into and this competition has the objective of trying to prove that green buildings can be sustainable, feasible and using university students to provide the necessary innovation required for this. 20 teams have been selected from across the world and we are the first Indian team to ever be selected in this competition. So not only is it the two colleges that are being represented, it is the entire nation which is being represented in at such a scale, at the international scale for the first time. So the evaluation criteria for this competition are 10 different competitions, 10 different contests within the entire competition and that is why it is called the solar decathlon representing 10 contests. These are quite comprehensive in nature. You can see that there is architecture, engineering, efficiency, electrical energy, comfort conditions, house functioning, communication and social awareness, urban planning, innovation and sustainability. So the competition is very broad, very comprehensive. It looks at all the different factors involved and it tries to have a complete balance between what an ideal building should be like. So these different criteria enable us to come up with a design which is complete in all senses. So what the competition, the version of the competition that we are participating in is called the Solar Decathlon Europe 2014 and it is being conducted in France in the premises of the Palace of Versailles. The houses, what each team does is they construct the house in their own campus over a period of 18 months and then they disassemble these houses and transport them to the competition site. So finally in June, July 2014, each of the 20 teams from various parts of the world will bring those houses to a common location, reconstruct them over there in a period of 10 days and have a lot of public, people, local people come and visit those houses. And we will be explaining what features we have used, we will be showing the technology and they will be able to actually get the feel of a real green building. So that's the objective of the competition sort of achieved. Not only is this about the different students, it's about building an international scientific community. You will be able to see in your screens the different countries from which there are teams who are participating in our version. So there are teams from, a lot of teams are from Europe naturally. There are also teams from Asia, North America and South America and around 600 students are just part of the competition from 41 different universities, 100 faculty members are there and 500 industrial partners. So it's an entire ecosystem which is being represented and created. I will just show you a few pictures from past years to give you sort of a feel of the competition. This is one of the houses. So the houses are constructed by students themselves, very little professional involvement. These are some more houses and you can notice the solar panels on the top and the unique shapes and these are just a few houses, how the interiors look like. So they are quite comfortable, they are quite modern. Finally coming to our project. So as Team Shunia, a collaboration of IIT Bombay and Rachna Sansa, the Academy of Architecture, the house that we're building is called H0 and the project is called Project H0. There are over 70 students and 10 different faculty members who have been working since January and who will keep on working till June, July. We've chosen the name Shunia because we want to bring about, give a reference to the one of the largest contributions that India has made to the world. And secondly to represent a net zero energy house, Shunia for zero. And finally what our objective is to come up with a sustainable and affordable house in the Indian context for the Indian middle class homeowner. So we have actually restricted our focus on a certain segment of the population keeping in mind that this is the segment of the population that requires the most amount of houses in the coming 20 years and where the most of the energy demand can possibly be offset. Hence our house, the various different features, the designs, they have been created keeping in mind that the end user will be an average person. So that is more or less what the mission is all about and we're trying to achieve this by bringing about a sort of a pressure on the building industry. We'll try and get a good narrative going in the entire nation and if the building industry feels that yes there is enough interest and yes there is a lot of scope for green buildings then definitely we hope that they will take some action. And secondly want to raise awareness in the nation about energy efficiency, responsible energy use and the potential of energy with focus on solar energy. So this is actually something which has been brought about over the past few, past five lectures that you've heard and the entire point of the workshop. If people get the discussion about energy going then there is a lot of scope for moving forward and that is again our mission. So I'll now hand it over to the architecture team to talk about a bit more about the same. So coming to the target group, the first, the most important question that we had to answer was who are we catering to and who is our target audience? So we carried out a lot of studies and we tried to study the GDP of our country. So studying the GDP rate and looking at the other aspects of it, we realized that the country is proposing a lot of infrastructure projects in order to keep the GDP at a constant rate and also along with them planning to get into the manufacturing sector. So we studied one such project called the DMIC. So coming to the population that we are looking at to cater, we did a lot of studies on the urban population and its growth and as you can see that by 2030 the urban population of India would become 590 million and talking about the McKinsey Global Report, it talks about two categories specifically called the seekers and the strivers whom we are catering to and they have a family income of 3 to 15 lakhs. So looking at an approximate affordability of five times your annual income, our house has been costed at 15 to 75 lakhs. So we are directly looking at impacting 115 million households with the product that we will produce and that represents almost 35% of our urban population. Coming to the urban planning, one major factor in the Indian context was to look at the land cost and what we realized is that in metros and in the inner city cores where you have all the opportunities for job that are created, the land costs are very high. So we are looking at essentially peri-urban areas where the land cost would be low so which will overall reduce the cost of our house and make it more affordable. The most important criteria of the competition is design innovation itself. So we are looking at creating a house which is multifunctional so that in less space we can add more facilities and give more functions. Scale and standardization was an important factor to reduce the cost. Electricity, sewage and water which will be locally managed will also help in reducing the cost and also help us creating a better urban scenario. And what is the highlight feature of our design would be the transit-oriented development. What transit-oriented development means is that all your infrastructure that is been provided would govern the movement of goods and will facilitate the logistics of our planning. So what happens is that if you have a good transit development you can reduce the distance between the working and the living areas and ultimately you reduce the cost of energy in the city. As I have spoken before about DMIC, it is the Delhi-Mumbai Industrial Corridor. This is the golden quadrilateral that has been proposed and these are the national highways connecting the four major cities of the world. Along the western arm of it has been proposed the Delhi-Mumbai Industrial Corridor which is essentially a manufacturing sector that India wants to venture into to keep our GDP rate at 8 percent. So it starts from Mumbai at JNPT. JNPT is the Jawala-Neru Port Trust which is very close to Mumbai and it ends at Delhi. So Jawala-Neru Port Trust is also, this is Jawala-Neru Port Trust and it is closer to Uran which is our site here. Now another project which has been proposed is the Navashiva link which will, using which you can come from main Mumbai to Navi Mumbai in almost 10 minutes. So it also reduces the travel time and keeps the two cities connected at the same time. Also the international Mumbai international and the second Mumbai international effort has been proposed close by. So as a result Uran became a very important site to look at to propose our township. Studying various models of town planning we realized that a polycentric city would help where each center would be a self-sustainable center in terms of the amenities, in terms of commercial areas and residential areas. So the idea was to create a live-work-play kind of an atmosphere and create a sort of a village within the city. Coming to the cluster plan that we have developed for our project. So this is the plan of one building where we would have three apartments and along with that we are planning urban farms so that you can even produce your food where you live. So not only that it adds some green areas vertically to the city but also reduces the transportation cost of food for daily need items. These are some of the views of the final product. I will hand it over to Sayuri for the architecture part. The prototype that we are going to be constructing is actually going to be on the top floor of the cluster mainly because we want to show the integration of the solar PV panels with our design. We were inspired by Vastu Shastra. So Vastu Shastra became one of our concepts. What we tried to achieve was that we tried to take the scientific principles of Vastu Shastra instead of just the religious beliefs. When we started designing we didn't really have a site context as such so we took the four cardinal directions as our concept or as context and we designed accordingly. So our zoning is done so on so forth. What we later realized is that solar passive principles and the scientific principles of Vastu Shastra correlate which also made our zoning and our plan easier to design. Coming to the plan the entrance is from the eastern side. We have created a small buffer space with a jali over here to prevent direct visual access into the house. The plans were considering a 70 square meter space for a family of six. Modularity was very important. So the living room became one of became a multifunctional space. It becomes user defined and it changes with modular furniture according to the time of the day. So during the day you have it, it works as a living room and during night with modular furniture it gets converted into two bedrooms. On the east side, on the north east side we've given a study so you have diffused light, a good diffused light coming in from the north and from the east. On the south east side we have our kitchen. On the south west side we have our master bedroom mainly because in the afternoon when the sun is at its harshest on the south west side the master bedroom or the bedroom will not be occupied so thus the heat won't really affect the occupants. This sort of became a solar passive strategy. The brief demanded that we have a handicapped toilet which we have provided. On the north west side we've provided a utility area mainly because the south west winds that come in they'll collect the humidity and leave and they won't enter the house. We have also planned a roof garden which works with the solar passive principles and it basically cools the house down. We're using traditional plants like tulsi and elements like a jali in our elevations to sort of create a very traditional touch in our design. These are some of the sections and views and how the family room will be converted into a bedroom at night also with showing the modularity. Again, elevations and this is a view of the H0. Thank you. From the architecture, from the discussion carried out by the architecture team you might have observed that we've tried to keep in mind whatever principles have been mentioned in the workshop so far. In the first half of the workshop we talked about solar passive architecture and we also talked about choosing the right materials, choosing the right architectural and solar passive strategies to cool down the house to a large extent and then once the house is at a point where it consumes the minimum amount of energy then you put in the technological, then you put in the various different technologies and try to bring it down further into the positive side. So now giving, I'll try and give a bit of a brief view about the technical aspects of the house. So firstly, since this is not visible, the mechanical team, we have different sub-team within our team. So the mechanical team, they're doing a few innovations. One of them is a solar oven, like Rangan Sir mentioned in his lecture, having appliances powered by solar energy is a big area where technical innovation is possible. Another innovation is in the hybrid AC, we're using a much more efficient AC as compared to regular split ACs and also we're trying to use hot water to sort of meet the requirements of the house as far as possible. So this, the title is not visible but it's a structural component. So firstly, we've chosen the structural materials and components on the basis of the following criteria, cost, environmental impact and then again ease of construction in house and finally, availability in the Indian context. Since our house will be built for the Indian middle class, we wanted to use locally available materials and also biodegradable materials or recyclable materials so that it's sustainable. So that is, those are the criteria that we chose to make the building actually a lot more sustainable in line with whatever we have mentioned so far. It will have a load bearing steel frame with prefabricated panels. So the frame will, the steel frame will actually tolerate all the load from the roof and all of those areas and the panels will just be easily fit onto the frame and those will have good insulating properties. Finally, something that we have done so far is we've completed the structural analysis, we've completed a design, identifying criteria, critical loads and selected the materials already and we've already also made some innovations in the wall panels to provide thermal comfort. Next is the photovoltaic solar thermal and electrical aspect of the house. So the house that we are proposing will be powered by solar energy, yes, but it will also be connected to the grid. So at times when the sun is not available, the house draws electricity from the grid and when there is excess energy available from solar panel, we feel it back into the grid. A simple model, we have a 5 kilowatt peak PV system and we've decided to go with monocrystalline cells with high efficiency along with the solar tracking system. So what a tracking system is essentially using some mechanical elements like a motor and some nuts and bolts and some arms. What we do is we move the solar panel as the, with the, in the same way that the sun moves across the day. So when the sun is on top, the solar panels face almost on top. During the morning and evening when the sun is setting, the solar panel is moved accordingly to face the direction of the sun so that maximum light can fall on it and the output is maximized. We also have utilized solar thermal collectors which will be providing hot water. Again we reducing as much electricity requirement by using renewable solar technology. We might be thinking of using some DC appliances like has already been mentioned to improve again efficiency and with regards to the electrical component we have already completed the wiring design of the house and it was again a great learning experience for the team. Now finally once these active systems are in place to finally go that extra step the instrumentation team is creating a home automation system. So what this is, it's a system which has some controls, some microprocessor which acts as an intelligent controller in which we will be creating and loading algorithms. So the house will be automated to some extent. All the different appliances will be talking with each other, things will be optimized and it will also lead to an additional amount of utility to the home owner. So the house owner will be able to control his television or his computer or the other washing machine, other appliances from a simple software which can be accessed from your mobile phone, from your smart phone, from your console. So that system we are designing. Again like was mentioned as in the previous lecture we're trying to match the solar generation to the PV grid peak and also trying to implement deminethide management algorithm and this will also be used to sort of give the user a good experience in interacting with the house and make, take that extra step in making comfort available to the user. And finally simulation, this is also something that we have actively done to sort of predict the performance of the system we are designing. So using software which has already been mentioned by NIXR and Diren Vajapati sir, we have, we have done those simulations, passive solar architecture analysis, daylighting analysis, cooling, heating loads, all of that we've done and come up with an, or are trying to come up with optimum design. So not only is the house fit with solar or another good technologies, we've also sort of studied how those technologies work with each other and how the integration happens. Finally a bit of a perspective about the project through a timeline. So we have 18 months that we'll be spending on this project. It's started in January so we are almost halfway through. The construction of the house will begin in October and we should be, we should have prepared a first model by the beginning of January and the final competition is in June, July 2014. Now coming to a very important part which is something that we wanted to use this medium to sort of communicate is the motivation and it is primarily the desire to make a change. We want to sort of contribute something which actively affects the nation in a positive manner. We have identified energy and housing to be important problems that need to be tackled at the earliest so that 20 years down the line we're not stuck, stuck in a bad situation and so that we can maintain our growth rate. So a few bunch of students got together and they had this desire to make this change and we're making it happen and this is something where that we would like all of you to ponder upon and maybe think, we think that you can also do something similar. This is the first time that we are participating in this competition of such scale and magnitude so we definitely motivated to test our ability also. The aim of our team as has already been told is to increase awareness about green building among students and academia and catalyze green building research on campus and finally a major motivation is a learning experience to help us grow at a personal level also. The amount of interdisciplinary interaction that we have had exposure to in this project is just tremendous and we're just very fortunate to get such an opportunity. For more information there are some different access mediums through which you can reach us. If you feel that we are doing something good and if you'd like to get in touch with us, you can contact us, you can keep yourself updated through what is happening and very importantly the modal platform that has been set up through this workshop we would very strongly encourage you to use it to generate some meaningful discussion about green buildings, about energy use, about the energy scenario of the nation and since we have such a wide range of people involved and brought together onto one platform we feel that it's an excellent opportunity for us to get something meaningful out of that discussion that's just what we want and our final word is that if you really think that this project is very good that you can support us by spreading the word that's all that we ask from you. If you like our effort then try and adopt those sustainable practices in your homes in your campuses and tell people about it tell people about the different things that you've learned in this workshop and we would consider our motivation behind it achieved. Finally thank you we hope this was informative you spent four hours on a Saturday morning so I hope you all enjoyed thank you we'll now go on to the interact session.