This is to support a discussion on money flows and growth. Money as a lubricant for the flow of embodied energy in human systems.
See also A Prosperous Way Down website

Comprehensive model outlining the cause and effects the advent of autonomous electric cars have had upon supply and demand as well as numerous other aspects of the economy.

This insight maker depicts the correlations between energy supply and water use in desalination potential in South Africa. 

The sun is the primary source of energy that organisms need to live.  organisms such as phytoplankton, and plants are primary producers who transforms the sun energy into usable energy for consumers.  At each stage of the energy pyramid only 10% of the energy is transferred, and the other 90% are wasted in thermal energy.  for example if the sun gives phytoplankton 100m² of energy the Red Cod would only gather 10m² of energy.  If a dolphin was to eat the red cod the dolphin would only gather 1m² of energy.  In this food web the primary producers are marked in orange boxes.  The red, and brown boxes mark the primary consumers who are the animals that mostly feed on primary producers.  The purple boxes are secondary consumers who feed on primary consumers.  The Light blue boxes are the top predators in this food web, and they get the least amount of energy so they have to eat the most.  The arrows show the flow of energy from the source all the way to the top predators.

A simple Energy Balance Climate Model of the Earth with no atmosphere.  Explore the impact of changing solar radiation, Earths albedo, and ocean heat capacity on the Earths temperature by using the sliders in the panel below.

The 3-machines energy transition model is a global system dynamics model based on energy balances,  and used to explore the energy frontiers for stabilizing the Earth's climate. The model comprises a hypothetical fossil engine, a solar engine including energy storage, and a carbon scrubber. These machines interact with Earth's carbon cycle and satisfy humanity’s energy demand. A detailed description can be accessed here: https://osf.io/fcwt8/

This insight shows the impacts of a renewawble portfolio standard on energy prices and electricity mix. It includes features such as REC pricing, clearing auctions for electricity, and distributed generation.

Red Box - The tertiary consumer is the top consumer on an energy pyramid and has no predators.

240 volt power system fed from 480 volt service