Excerpt from the book "Arqka Biological Architecture and Sacred Geometry" by Arturo Ponce de León, Ninón Fregoso and Michael Rice Acquire it here
®All rights reserved. Author of the document: Arturo Ponce de León for Arqka Mexico. Collaboration: Ninón Fregoso. The reproduction of the material contained in this site is authorized provided that the source is cited and the integrity of the text is respected.
With respect to the alternative technology that we can use there are many pros and cons. In our experience there are some hard data that have to be considered in order for the implementation of the system to be effective. The rope pump serves to extract water no more than six meters deep; the water pump can be very efficient if the water pressure is sufficient; The Chilean oven or rocket stoves have a combustion chamber very efficient that allows us to take advantage of the greater calorific value of firewood, we have to build it with good insulation in the walls of the whole device; for cooking we can use a parabolic solar cooker or a parabolic solar oven; the wind generators of electricity need that the wind is constant and strong to work; for the installation of photovoltaic panels it is necessary to consider the annual average of insolation as well as the cost of the batteries, they have an approximate life of 12 years and the solar panel, the battery and a power inverter are required, we can also use it to heat the water a glass tube heater.
Solar fruit dryers are very effective; to produce the necessary biogas of four people four pigs are required as well as bags for gas accumulation. The calculation of energy needs in lighting is 5 watts of consumption for each LED lamp; the incandescent lamps consume 60 watts average and those of low consumption close to 12. The refrigerator consumes 920 watts per day, being the class A the most efficient. The washing machine, without hot water or centrifuged, 120 w / day. The water pump depending on the time of use can reach up to 6000 watts a day. And in all the calculation must take into account a 15% loss on average for cables, inverter, and batteries. This calculation must be done with the lowest possible light collection scenario, which is the winter one.