Table: nhpc_power_plants_2
Columns: s_no
power_plant
state
total_capacity_mw
completion_schedule

Question: For the 2013 completion schedule, what is the total S.no.?
SQL: SELECT SUM("s_no") FROM nhpc_power_plants_2 WHERE "completion_schedule" = '2013'

Question: What is the completion schedule for himachal pradesh state with a total capacity (MW) of 800?
SQL: SELECT "completion_schedule" FROM nhpc_power_plants_2 WHERE "state" = 'himachal pradesh' AND "total_capacity_mw" = 800

Question: When the completion schedule is 2016 for the state of jammu & kashmir, what is the smallest S.no.?
SQL: SELECT MIN("s_no") FROM nhpc_power_plants_2 WHERE "state" = 'jammu & kashmir' AND "completion_schedule" = '2016'