LONDON, Nov 9 (Reuters) - Dutch bank ING has issued a green bond worth nearly $3 billion, it said on Friday.
* The issue consists of two tranches - 1.5 billion euros ($1.7 billion) of 12-year paper and $1.25 billion of seven-year notes
* The issuance will fund a portfolio of new and existing loans for renewable energy and green buildings, the bank said
* ING issued its first green bond in Nov. 2015, which raised around 1.2 billion euros to fund low-carbon projects
* Green bonds are a category of fixed-income securities, which raise capital for projects with environmental benefits ($1 = 0.8813 euros) (Reporting by Nina Chestney; Editing by Kirsten Donovan)