Japanese renewable power producer Renova Inc (<a href="https://quote.jpx.co.jp/jpx/template/quote.cgi?F=tmp/e_stock_detail&MKTN=T&QCODE=9519" target="_blank">TYO:9519</a>) announced on Monday it secured an environmental value sale and purchase agreement (VPPA) with Otsuka Corp (<a href="https://quote.jpx.co.jp/jpx/template/quote.cgi?F=tmp/e_stock_detail&MKTN=T&QCODE=4768" target="_blank">TYO:4768</a>) for an additional 5 MW.