From a practical point of view

a cost and subsidy evaluation scheme is proposed for electric energy substitution

which is both concise and acceptable for users and local governments. Based on this scheme

some suggestions for the implementation in electric energy substitution are proposed. Firstly

it is pointed out that the key to promoting electric energy substitution is the willingness of the mass users to practice

which requires a lower use cost after the electric energy substitution. And then in order for users to avoid investment loss

the loss expense of the remain life of old equipment is included in the use cost of new equipment

and there upon the 20 electric energy substitution technologies officially announced are divided into 5 categories according to their characteristics

and the cost and subsidy evaluation scheme of each category is designed respectively. Finally

according to the achieved conclusions

some related suggestions for the implementation of electric energy substitution are proposed

and some examples are taken to demonstrate the scheme afterwards. For electric energy substitution

the scheme can promote the application while the suggestions can ensure a high efficiency of the subsidy

whereby the Conclusions have certain reference value and practical significance.