Cleve Hill Solar Park (formerly Project Fortress) is a photovoltaic power station under construction on the Graveney marshes between Faversham and Whitstable, Kent in the UK.

[2][3] Because of its size, it is a nationally significant infrastructure project so outside the standard local planning procedure.

Electricity will be exported from the project via the 400 kV National Grid substation at Cleve Hill, constructed to serve the London Array offshore wind farm that lies to the north.

[5][6] The 800 acres (320 ha) of Grade 3b agricultural land will be covered by the east-west facing solar photovoltaic panels.

[7] The planning process faced opposition by residents and environmental groups on the grounds of loss of biodiversity resulting from covering large areas with PV panels, and safety, where concerns were raised about a possible fire and explosion of the battery blocks.