To achieve ambitious climate goals, annual investment in energy efficiency must increase five-fold to over $1 trillion per year by 2050. However, financing energy efficiency projects faces numerous challenges including small project sizes, performance uncertainty, and lack of standardization. These issues apply across all sources of finance whether on- or off-balance sheet. Derisking energy efficiency requires addressing project development risks, performance risks, and financing barriers through standardized processes, tools to evaluate value and risk, "super developers" to aggregate projects, and building capacity across the financial and energy sectors. The Investor Confidence Project framework supports standardization to reduce due diligence costs and increase confidence in energy savings.