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"Donald Sadoway: The missing link to renewable energy Tweet this talk! (we'll add the headline and the URL) Post to: Share on Twitter Email This Favorite Download inShare Share on StumbleUpon Share on Reddit Share on Facebook TED Conversations Got an idea, question, or debate inspired by this talk? Start a TED Conversation, or join one of these: Green Home Energy=Hydrogen Generators-alternative sources Started by Kathleen Gilligan-Smith 1 Comment What is the real missing link in renewable energy? Started by Enrico Petrucco 8 Comments Comment on this Talk 60 total comments Sign in to add comments or Join (It's free and fast!) Sort By: smily raichel 0 Reply Less than 5 minutes ago: Nice smily raichel 0 Reply Less than 5 minutes ago: Good David Mackey 0 Reply 3 hours ago: Superb invention, but I would suggest one more standard mantra that they should move on from and that is the idea of power being supplied by a centralised grid. This technology seems to me to be much more beneficial on a local scale, what if every home had its own battery, then home power generation becomes economically more viable for everyone. If you could show that a system like this could pay for itself in say 5 years then every home would want one. Plus for this to be implemented on a large scale requires massive investment that could be decades away. Share the technology and lets get it in homes by next year. Great ted talk. Jon Senior 0 Reply 1 hour ago: I agree 100%. Localised energy production would also make energy consumers more conscious of their consumption and encourage efforts to reduce it. We can invent and invent all we want, but the fast solution to allowing renewable energies to take centre stage is to reduce the base energy draw. With lower baseline consumption, smaller "always on" generators are required to keep the grid operational. Town and house-l

Australia`s competition regulator on Friday identified iron-ore as a potential major concern in evaluating mining giant BHP Billiton`s US$128 billion bid for rival Rio Tinto and said it would make a final ruling on the hostile takeover by October 1. The Australian Competition and Consumer Commission (ACCC) devoted most of its nine-page "statement of issues" to the proposed deal`s likely impact on the iron ore trade and, in particular, on Australian steel-makers. Rio Tinto and BHPB are the world`s second and third largest iron-ore producers, respectively, behind Brazil`s Vale. But the ACCC saw no major competition issues surrounding trade in copper, gold, uranium, bauxite and alumina.

Long ago, the industry determined that the combination of copper tubing and aluminum fins provided the most efficient transfer of thermal heat in condenser coils. Manufacturers of residential units are not necessarily on that same page - or that line of thinking - today. Most manufacturers, if not all, are revising, have revised, or continue to revise their outdoor coil construction. One of the main objectives, of course, is to increase heat transfer efficiency, as energy efficiency is high on every homeowner's wish list. In the end, each manufacturer believes it has engineered and/or perfected - at least up to now - the most-efficient coil design. Some, like Goodman Manufacturing, have made changes as a direct result of the efficiency offered from R-410A refrigerant.

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Source: Frost & Sullivan

Copper represents less than 1% of the cost of a PV system installed. Is it really a cost-saving target?