Jef79answered grow question 5 years ago Hello.. Hope you are well.. As long as ur paying ur bills n not bypassing system u will b ok wit no problems.. Ive ran 2x 600w wit 2x extraction fans.. Multiple size fans.. Pumps.. And been doin this a while n never had problem wit electricity board.. I think its more wen u take the piss n get a whole house on n dont pay ur bill or bypass so sumwer around area is "leaking" power so they'll investigate.. My advice is keep on top of the bills.. Keep on top of any roaming smells and u'll doin it for life wit no worries !!..stay safe n gud luck.. 👍🍀