Notation	Descriptions
Parameter
p	The retail price of electricity determined by government guidance, p > w
X	Consumers demand for electricity follows a CDF of F(x), and its PDF is f(x)
y	Electricity output density of renewable energy defined on the range [0, 1], it follows a CDF of H(y), and its PDF is h(y)
q	Electricity output, it can be simplified as $q = θ_{0} y K$ where $θ_{0}$ is the effective output coefficient
c	Unit installation cost of renewable energy
$ϕ$	Share ratio of ESC to intermittent renewable plant under revenue sharing contract
g	Unit cost of emergency electricity generation
v	Unit compensation for unsold electricity of ESC under risk sharing contract, $v < p (1 - ϕ)$
μ	Government subsidies for unit grid-connected electricity
Variable
Q	Electricity purchased quantity
K	Installed capacity of renewable energy
w	Wholesale electricity price