Refine energy schema

script/sql/create/15.energy.sql

@@ -1,6 +1,6 @@
 -- [ENERGY]
 
-create type energy_param as enum ('price', 'pattern', 'effic');
+create type energy_param as enum ('PRICE', 'PATTERN', 'EFFIC');
 
 -- GLOBAL   PRICE / PATTERN / EFFIC   value
 create table energy_global
@@ -22,3 +22,12 @@ create table energy_demand_charge
 (
   value numeric not null
 );
+
+insert into energy_global (param, value) values
+  ('PRICE', 0.0)
+, ('EFFIC', 75)
+;
+
+insert into energy_demand_charge values
+  (0.0)
+;