At the power plant located in ramakkalmedu, what is the sum of the total capacity (MWe)?
CREATE TABLE "projects_in_india" (
  "power_plant" text,
  "producer" text,
  "location" text,
  "state" text,
  "total_capacity_m_we" real
);
SELECT SUM("total_capacity_m_we") FROM "projects_in_india" WHERE "power_plant"='ramakkalmedu';