UPDATE 1-REH mulls action on Novera, Infinis bid stutters

* REH assesing potential measures over circular

* Infinis extends offer for Novera to Nov. 16

(Adds Renewable Energy Holding statement, shares)

LONDON, Nov 3 (Reuters) - Britain's Renewable Energy Holdings (REH.L) is considering taking action against fellow renewables company Novera Energy NOEN.L after the latter made an error in a shareholder document. In a circular last week setting out the reasons why they should reject a 90.5 million pound ($148 million) takeover bid from private-equity backed Infinis, Novera incorrectly stated that REH was in the process of selling off all its assets.

The circular has since been corrected but REH said on Tuesday it was assessing if there were any potential measures it could take.

"REH continues to operate its wind and methane assets and to develop its pipeline in UK and Europe, in accordance with its stated strategy for the benefit of its shareholders," it said in a statement.

Novera, which operates landfill gas sites and wind farms, declined to comment at this stage on the statement from REH.

Separately, Terra Firma-backed Infinis said it was extending its 62.5 pence a share offer for Novera until Nov. 16 after failing to secure support for its bid from 50 percent of shareholders.

Infinis now owns 42.7 percent of Novera, having garnered the support of just 0.1 percent of shareholders since launching its bid last month.

A third of Novera's shareholders have already publicly stated they will not back the bid. [ID:nL1498021] ($1=.6115 Pound) (Reporting by Victoria Bryan; editing by Simon Jessop)