Most of the energy used in New Washington A came from the stars that shone on the Noah World.
This technology of collecting recycled energy that used the light energy technology taught by the Atlanteans completely differed from the previous simple solar energy technology in terms of energy efficiency. It could use light energy as the primary energy source of the city. However, the downside was that the cost of building an energy system was very high.
This caused the light energy technology to not be popularized yet before it reached a further maturity level other than the experimental use in the construction of the oasis city in the foreign world. Secondly, even if most of the energy in New Washington A was renewable, it did not mean that it could be randomly wasted. The usage must be planned, so for this reason, the street lights on the edge of the city were not very bright.
