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Which motivate these investigations is to supply a need without giving emissions to the environment starting with issues such as heating, electricity and refrigeration, where all forms of energy are revived as the article both gas, wind and solar energy.

The three  important methodologies son machine energy, calculate the cycle of life, are the rate of energy saving life cycle energy,

Important research data are that the heating with the gas instead of carbon is of a yield of 60% and that the emissions of wind energy reduces 35%

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In the study, the comparisons were develop firs between traditional energy system and the distributed system which mix several methods for energy supply such as the mentioned below. Alternatives energy sources are obtained successful results in energy consumption,  nevertheless some of the methods are not as high efficient in time and energy capacity as traditional energy methods. For instance, solar energy is not enough efficient due to solar rays intensity low in some regions in China.

The implementation in China of LCA methods are extensively applied to production infrastructure. It provides sustainability in the energy cycle, which is affordable to all agriculture, construction and  industrial sector reducing factors such as emissions and consumption.

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In order to carry out the analysis of both factors, the fuel energy consumption is calculated from given efficiency factors, once calculated, the life-cycle energy consumption and the GHG emission are evaluated or examined.
Consumption is therefore derived as follows:

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To carry out the process, 6 cases were designed to better capture the potential development of Distributed Energy System projects

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Sensitivity Analysis
Looking at the figure we see that there is not much difference from the distributed energy system projects. However, when the boiler is set at 60% the performance of natural gas based projects as the base case is even more outstanding.

Main Results
Looking at table 1 we can notice that the Distributed Gas-based Energy System project has Desirable performance in environmental value. Compared to the traditional project.

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These cases are established where coal is burned to generate heat because in the case of central heating systems in China coal remains the dominant energy. Looking at the diagram the coal represents 85% of the energy used in heating, maximum local use of solar energy/ biomass is economically reasonable, and can reduce energy loss in transport and other processes.

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In the manufacturing processes, data on the raw materials that are used in these production processes must be taken into account, where the environmental impacts are quite considerable, with a product input and an output of these raw materials, which become waste, Raw materials such as:

In addition to raw materials, impressive energy costs are obtained for the production processes along with natural resources, such as water, wood, Pet, these environmental impacts generated daily, must be complemented under action plans where there is a balance of reuse and The expense executed.

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Paso 1: convierte la energía de salida en la entrada de energía.
Paso 2: La entrada de energía se utiliza para calcular el consumo de energía del ciclo de vida y la emisión de GEI.
Paso 3: Calcule el ahorro de energía y la tasa de reducción de emisiones comparando el caso ky el caso k.