(a) Estimated monthly and annual steam sales, winter, summer and shoulder season sales and peak day sales over the planning period by end-use or customer classifications (in tabular and spatially referenced data, in formats deemed appropriate by the board), specifically identifying the extent to which energy conservation and fuel switching measures, retention programs, and customer gain/loss have been incorporated within such forecasts.

1. (1) Steam sales data for each customer class, with a description of types of customers (e.g., hospitals, commercial office building).
2. (2) Indicate the number of customers by the customer classes set forth in paragraph (1) of this subdivision.
3. (3) End-user prices, in filing year dollars, for annual sendout.
4. (4) Information on recent interconnections as well as customer losses, such as removals, from the system, showing aggregate gains/losses to the system. Provide information on whether new construction has incorporated interconnection to the steam system.