Hi there. I think your idea is really well thought out. You've laid it out really clearly as well. Great job! I don't think there is anything I would change about your pitch. But in terms of next steps, the first thing I would do is to run a quick cost comparison for virgin vs. reclaimed/waste materials for a few key construction products. Surprisingly, waste materials are not always cheaper. In this case, try to quantify the sustainability benefits you offer. "By using ___ quantity of waste material, you are saving ___ tonnes of CO2 emissions, which would cost _____ to offset". Companies think in terms of money. You have to be able to convince them that even if their operating costs increase due to the use of reclaimed materials, they can increase sales by being more sustainable. Another thing I would do is to connect with companies that already use waste materials to generate new products. There are organisations that make bricks out of plastic waste, roads out of old tyres, etc. Get in touch with them and find out how they obtain their waste material. See if there are any inefficiencies in their procurement process. Try to design your online marketplace to address these gaps. This is a really exciting proposal and I would love to see it developed further. All the best!

This is a very interesting idea. You've laid it out really clearly - I like that you've thought about the advantages of your proposal for both companies and end users. I think I'd like to see more details on the supply chain logistics: • You've listed out some potential end users of the waste, but what materials exactly do you anticipate their taking? Waste wood, stone rubble? • Have you thought about quantity? An individual or a school would probably only be able to take a limited quantity. What percentage of construction waste do you think you could stop from going into landfill because of this proposal? • How will the waste be transported from the construction site to the charity that wants the material? Will it be held at a depot? Who pays for transport? How will you ensure this is cheaper than paying a waste removal firm? Again, I think this is a really great idea, and I recognise that you are at a very initial stage. These are just some questions to guide further development of the pitch. Good luck!

Hi there. I really like this idea - it's always good to see something challenge the status quo and increase accessibility! You've done a great job outlining the flaws in the LEED/BREEAM certification, but I'd like to see a bit more on how your certification will work and what metrics it will be focused on. It sounds like the certification will be lower cost, which is great. But how will it achieve this reduced cost? Removing the hire of specialised advisors is one way, but I am sure you have other ideas! Along those lines, can you please provide concrete examples of "gestures that do not genuinely reduce a company’s emissions"? Not that I disagree at all, but you could really strengthen your pitch by adding in how you would like to change things. It would also be good to see how you will measure impact over the entire life cycle. Would you require a certificate that is renewed each year to ensure that building maintenance and renovation is keeping up with its green promise? If so, how will you deliver this so that it is still accessible and low cost? And if not, how will you ensure that no negative changes are made after your initial certification? Again, this is a really good idea, and I think it would be very cool to see implemented! With a bit of refinement I think you'd be good to go.

I really like the idea behind this proposal. However, I am concerned you may be a bit too ambitious. The proposal involves three different technologies – solar energy, water treatment, and programming. You propose an innovative approach to each of these, which is really exciting. But it may be a bit too much to get every component of your proposal working to a high standard. I would suggest you focus on one of the three areas you wrote about, so that you are not spread between topics and can ensure you execute something successfully. Let's talk about each aspect of your proposal, starting with the water treatment. I would encourage you to think a bit about your terminology. Desalination is a technique to remove salt from sea or ocean water. So it doesn't apply to groundwater or wastewater. However, many desalination plants use membrane filtration, and that same technology can also be used for treating wastewater. Maybe this is an area you could explore? Have you also thought about the difference in water treatment standards for different end uses? Water for drinking needs to be treated to a much higher standard than water for industrial use. I would think about what treatment level you are trying to achieve and focus on that. Regarding the solar energy. Have you researched the energy usage of water treatment systems? Desalination typically requires high energy use, so you will need a way to generate and store a lot of solar energy. This may involve a large number of batteries, which can be expensive. There is a lot of potential for innovation in this area to bring the cost down. Finally, about the programming aspect. That is a very exciting idea. Have you considered maintenance of these systems? You typically need skilled personnel to ensure that your system keeps performing like it should. Do you have a training plan in place for this? Overall, I think this is an exciting idea with a lot of potential. With some more focus and development I think you could be successful.