Carl van Tonder 316f2cb78a Make power grid / energy storage Qs optional
approximate_total_investment & contractor_or_supplier_of_technology
should both be optional for non-"power grid / energy storage" types
2018-04-04 18:15:51 -04:00
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2018-03-28 17:26:40 +11:00
2018-03-28 17:26:40 +11:00
f
2018-04-02 22:38:09 +10:00