Syntax error at or near $

What is the issue this query is running Ok in grafana 4.6

SELECT log_time AS “time” , CASE when $Parameter = DEMAND then ($Parameter/1000) when $Parameter = KVAR_LEAD then ($Parameter/1000) else $Parameter END AS “alias” FROM public.meter_blk_detail_view where meter_id = “$METER_ID” and log_time>= date_trunc(‘day’,now()) and log_time<= now() order by log_time