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2. Copper in renewable energy - Wikipedia

   en.wikipedia.org/wiki/Copper_in_renewable_energy

   Also, copper is more suitable for small roof facilities, in smaller cable trays, and when ducting in steel or plastic pipes. [22] Cable ducting is not needed in smaller power facilities where copper cables are less than 25mm 2. Without duct work, installation costs are lower with copper than with aluminium. [22]

3. Air conditioning - Wikipedia

   en.wikipedia.org/wiki/Air_conditioning

   The Mitsubishi model was the first air conditioner with a cross-flow fan. [64] [65] [66] In 1969, the first mini-split air conditioner was sold in the US. [67] Multi-zone ductless systems were invented by Daikin in 1973, and variable refrigerant flow systems (which can be thought of as larger multi-split systems) were also invented by Daikin in ...

4. ITER - Wikipedia

   en.wikipedia.org/wiki/ITER

   Support for the European budget for ITER has also varied over the course of the project. It was reported in December 2010 that the European Parliament had refused to approve a plan by member states to reallocate €1.4 billion from the budget to cover a shortfall in ITER building costs in 2012–13.

5. District heating - Wikipedia

   en.wikipedia.org/wiki/District_heating

   The Spittelau incineration plant is one of several plants that provide district heating in Vienna, Austria. Animated image showing how district heating works. District heating (also known as heat networks) is a system for distributing heat generated in a centralized location through a system of insulated pipes for residential and commercial heating requirements such as space heating and water ...

6. Renewable energy - Wikipedia

   en.wikipedia.org/wiki/Renewable_energy

   Levelized cost: With increasingly widespread implementation of renewable energy sources, costs have declined, most notably for energy generated by solar panels. [ 183 ] [ 184 ] Levelized cost of energy (LCOE) is a measure of the average net present cost of electricity generation for a generating plant over its lifetime.

7. Chrysler Building - Wikipedia

   en.wikipedia.org/wiki/Chrysler_Building

   Chrysler's initial plans for the building were similar to Reynolds's, but with the 808-foot building having 68 floors instead of 67. The plans entailed a ground-floor pedestrian arcade; a facade of stone below the fifth floor and brick-and-terracotta above; and a three-story bronze-and-glass "observation dome" at the top.