Sec. 8-44a. Housing authority programs for social and supplementary services, project rehabilitation and improvement and energy conservation. State grants-in-aid, loans and deferred loans. Rental Rehabilitation Fund. Operation or management plan for housing projects. (a) Any housing authority may prepare and submit to the Commissioner of Housing for approval a program of social and supplementary services and project rehabilitation and improvement for any or all housing projects within the jurisdiction of such housing authority. Such program shall include the estimated costs of the services, rehabilitation and improvement and the method and staff required to carry out such program. After approval of such program by the commissioner, the state, acting by and in the discretion of the commissioner, may enter into a contract with the housing authority conditioned upon the housing authority performing the program approved. Such contract shall provide for state financial assistance in the form of a grant-in-aid, loan, deferred loan or combination thereof equal to the cost of such program, including administrative or other cost or expense to be incurred by the state in connection with such program as approved by the commissioner, provided such contract shall provide financial assistance in the form of a loan, or deferred loan rather than a grant only in a case where, and to the extent that, repayment ability exists because of an adequate rental structure or funds are made available by an agency of the United States government in such amounts and for such periods of time as are required to repay such loan, together with interest. The contract shall further provide that in the event such funds provided by an agency of the United States government shall terminate prior to