As the most industrialized and urbanized region, Beijing plays as a demonstration role to show the impact of environmental policies on the economy development and GHG mitigation. In this paper, we constructed a dynamic input-output model introducing the different levels of environmental taxes. It not only can choose the optimal tax level, explore the relationships between economy and environment, but also can analyze the future trends of the economy and GHG intensity from 2010 to 2025. The objective function is the maximized GRP, subject to GHG emissions constraint and a series of subjective functions. The simulation results illustrated that with the GHG emissions constraint as 1.5 times of the 2010 level, carbon tax as 50 CNY/t CO2-e is effective to promote the economic development and GHG emissions mitigation. Annual growth rate of GRP can be up to 6.1%. The economic growth rate increases 0.3% compared with the condition when not introducing the policies. In 2025, the GHG intensity will be 43.5 t CO2-e/million CNY, 38.8% reduced compared with the 2010 level. This research proves that the proposed environmental tax is effective to promote the economic development and GHG mitigation.
Development of renewable energy is considered as an effective measure to control greenhouse gas emissions in the world. Policy instrument to promote development of the renewable energy have been paid more and more attention. As the most industrialized and urbanized region, Beijing plays as a demonstration role to show the impact of environmental policy instrument on the development of renewable energy and the mitigation of GHG emissions. In this paper, based on the input-ouput table, we constructed a dynamic input-output model introducing renewable energy industries, as well as the invironmental policy instrument of the emission tax. It not only can explore the relationships among Beijing's renewable energy, economy and environment, but also can analyze the future trends of the economy and GHG intensity from 2010 to 2025. The objective function is the maximized GRP, subject to greenhouse gases emissions constraint and some subjective functions. The simulation results illustrated that with the GHG emissions constraint as1.5 times of the 2010 level, carbon tax as 80 CNY/t CO 2 -e is effective to promote the renewable energy development, economic development and GHG emissions mitigation. Annual growth rate of GRP can be up to 6.4%. The economic growth rate increases 0.6% compared with the condition when not introducing the policy instrument. In 2025, the GHG intensity will be 41.8 t CO 2 -e/million CNY, 41.4% reduced compared with the 2010 level. Total power generation of renewable energy can be 40.9 GWh, contributing to the reduction of 25 million CO 2 -e emissions in 15 years. This research proves that the proposed environmental policy instrument is effective to realize the government's targets.
With advances in technology, Internet of things have been all over every aspect of our lives, renewable energy harvesting technologies will provide a better solution for the power supply of wireless sensors. This article outlines a variety of renewable energy, renewable energy equipment already, the advantages and disadvantages of renewable energy in the environment. Effective use of renewable energy will be the future hot research of energy development.
Ladder electricity price is as a means of power demand side management. Not only can smooth the load curve, you can also take care to low-income residents, in addition also has important significance for the effective utilization of resources. For ladder electricity pricing mechanism, considering residents electricity costs at the same time, using sensitivity analysis method study the effect of ladder electricity price pricing schemes. And ladder electricity price plan data in Hubei province as the foundation, combined with local consumption situation analysis, to the further development of ladder electricity price and the pricing offer certain reference basis in the future.
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