This paper explores how scale-up and replication of effective climate finance interventions efficiently mobilise private climate finance. This paper uses the term “climate finance intervention” to refer to public interventions used to mobilise private finance that supports climate mitigation or adaptation activities, or both, in developing countries. The interventions examined in the paper have already been, or are being, scaled up or replicated. Scaling-up and replication of such climate finance interventions could be an efficient way to increase the private sector’s interest in mobilisation of climate finance, and thus to make progress towards the USD 100 bn per year goal by 2020. The paper draws lessons from selected mitigation and available adaptation case studies at project- and programme-levels as well as from experience with international climate funds.