Economic Development
and Redevelopment

“It is customary in books concerned with ecology to point out the need for further research. This need is apparent, but should not be overemphasized. The greater immediate need is for effective application of ecological principles that are already known.”
Dasmann, Milton & Freeman, Ecological Principles for Economic Development (1978)
“just knowing that a journey is actually possible sweeps away half the excuses for not making the journey oneself”
Ellerman & Stiglitz, in New Thinking in Macroeconomics (2003)
“successful economies have emphasized mobilization and use of national resources, not foreign aid, for capacity-building and development in general”
Devendra Raj Panday, in Capacity for Development (2002)

Solar Thermal Electricity

Solar Thermal Electricity

Solar thermal electricity (STE) is the most cost-effective form of bulk electricity generation. All global dispatchable electricity needs can be met with solar thermal electricity generated in deserts and transmitted to the rest of the world using high voltage direct current (HVDC).

Figure 1. Solar trough collectors. Curved mirrors concentrate sunlight on pipes containing heat transfer fluid.

Sunlight in deserts is concentrated, to heat a liquid that produces steam to power a standard electricity generating turbine as used in natural gas power plants. These two types of plants are combined, with natural gas (or biogas) used for backup.

Solar thermal electricity plants are in deserts because much more solar radiation penetrates the dry atmosphere. Heat is efficiently stored in molten salt tanks to generate electricity at night. Deserts retain very little heat, radiating heat back to the sky at night. Intercepting a very small fraction of that energy is enough to provide all global electricity needs.

Background image: Workers installing solar trough collectors to generate electricity in the 1980s. That solar thermal electricity plant is still generating electricity today.

High Voltage Direct Current

High Voltage Direct Current

Electricity from solar thermal electricity generating plants, hydropower and wind farms will be transported long distances to all parts of the world using high voltage direct current (HVDC).

HVDC transmits electricity much further using less wires than AC (alternating current).

Figure 2. Right of Way requirements for three ways of carrying the same amount of electricity (6 GigaWatts): three 765kV AC towers (left), or two ±500kV DC towers (center), or one ±800kV DC tower (right).

Figure 3. HVDC pylon design by Bystrup.

Wind Energy

Wind Energy

Electricity generated by wind turbines on wind farms can be combined with dispatchable solar thermal electricity and hydropower to provide all global electricity needs. Substantial wind power from the North African Coast and Interior United States can be supplied via HVDC to Europe and the coastal US.

Development Links

Building Materials

Wood substitute building material

Biodegradable Hemp Boards

Residential Home Design

Energy-Efficient Home Design

Solar Architectural Design

Architectural scale models

Heliodons Web Site

Heliodons Article

Electricity Transmission

Plains and Eastern HVDC

Copyright © 2021 Arc Math Software, All rights reserved
Arc Math Software, P.O. Box 221190, Sacramento CA 95822 USA   Contact us
2021–Mar–1  00:25  UTC