This paper addresses a problem that is typical of multi-period capacity expansion equilibrium models: plants or sectors have different risk exposures that may warrant different costs of capital. The paper examines modifications of a capacity expansion model interpreted in equilibrium terms to account for asset-specific costs of capital
Ehrenmann, A., & Smeers, Y. (2013). Risk adjusted discounted cash flows in capacity expansion models. Mathematical Programming, 140(2), 267-293. https://doi.org/10.1007/s10107-013-0692-6 (Original work published 2013)