Sure you can , 1 . 19 changed the exploration CB to be fabricate claims on anyone in a colonial region where you have a colonial nation . <| sep |> Why on earth would you EVER buy anything on release ? <| sep |> So your right hand is the nondominant . <| sep |> If it ' s an iPhone u go to restrictions <| sep |> Ho ho ho ! I love you <| sep |> Biggest issue is storage . Let ' s assume you want to do full off grid power supply for 4 days . In no case will you actually experience 4 days of darkness , but it ' s nice to know you won ' t have to shut down production due to few consecutive cloudy days with only 20 % capacity . My amateur knowledge of steel mills suggests that irregular shutdowns and restarts due to power outages aren ' t good for the machines , if anything due to thermal stress , so I believe power stability will be an important factor in cost benefit analysis . 205 MWx 24 x 5 h 20 GWhHow much is 20 GWh really ? It a nice round number , comparable to energy released by the Little Boy bomb . It would take around 1 . 5 million powerwalls 1 . 5 m x $ 5000 $ 7 . 5 b . Oh boy . At this point , usual suggestion is pumped hydro storage . Completely ignoring the necessary prerequisites for building such a place , you ' d need around 2 . 5 Goldisthal Pumped Storage Stations 2 . 5 x 600 m 1 . 5 b , roughly the same in $. Other methods , like molten salt are afaik even costlier and unproven at such large capacities . How much does it cost for a solar power plant anyways ? California Valley Solar Ranch is 250 MW which is what you ' ll probably need , after the losses dependant on your storage method and design and total cost was $ 1 . 6 b . Multiply that by 3 , as you have to charge the batteries for the 16 hours sun isn ' t shining , and you are at $ 4 . 8 b . I assume wind would be cheaper at this point , both for storage and power generation . So to add it up , you gotta pony up between 7 . 5 and 10 billion united states dollars for your single steel mill in CAPEX . I ' m sure that since , after all , steel mill uses a lot of its energy as thermal , some optimisations can be made , 4 days storage may be considered too much etc . We can probably agree , though , that the all possible optimisations won ' t bring this down below a factor of 5 . In this highly optimistic world you are still looking at a figure between $ 1 . 5 b and $ 2 b . Depending on your mill ' s tona size , this may be more than the actual mill cost . A natural gas plant should cost you around $ 1000 to $ 1500 per kW , so bypassing the storage , stability , geography and all the other issues , you arrive that the figure of 250 MW $ 1000 kW $ 250 $ 375 m for your own natural gas power plant . You can perhaps now see why renewables are still a niche technology with a lot of issues to solve before being competitive without subsidies on the scale you are interested in .