(1) Licensed suppliers serving residential and small business (under 20 kW) customers must maintain a standard service offer characterized by:

(a) service contracts no longer than three months, except as provided in (3) ;

(b) fixed prices per kilowatt-hour of consumption and per kW demand, as applicable, subject to (2) through (4) .

(2) Standard service offer prices may vary by season and for consumption blocks of at least 400 kilowatt-hours.

(3) The standard service offer may include a budget/fixed monthly bill option, in which case the contract term may extend for no more than 12 months.   The historical average consumption used to compute the customer's bill amount must be prominently identified and explained on the monthly bill.

(4) Licensed suppliers may modify the price(s) and structure of their standard service offers, within the framework set forth in this rule, at any time by updating the supplier's electronic registration information.

(5) Licensed suppliers serving residential and small business (under 20 kW) customers may offer other services to these customer segments, in addition to the standard service offer.