Test Drive | Page 48

Alternative Energy : Footprint Rules of Thumb _ Looking for sustainable energy sources vs. traditional sources How much energy is needed for Southwest Detroit? For Southwest Detroit Approximate Energy Usage 13 3.297 x 10 kJ (Annually) 77% natural gas Sustainable options to address needs? De tr How much area is needed? 2. Solar Photovoltaics Solar Water Heating Geothermal Detroit River Hydro Current Detroit Salt Mines 4. Detroit Rive r1 06 .7 5. s re ac s and 23% electrical, s re ac 27.3% of the land available in southwest G Solar Photovoltaics: eo th re es ac alt Min tS oi Currently the mix is ~ 0 the southwest Detroit 5 What kind of energy is needed? Need a mix of electrical (provided by coal and nuclear utility plants)and heating (currently provided by natural gas) and does not include motor gasoline Detroit River: 19.3% along 1. Solar Photo volt aic s 3, ater hea w r a l o 40 ting 3. S 1,2 45 = Solar water: Using 15% of land (possibly only roof-tops) er ma l 2, 548 ac Detroit Salt Mines: Subterranean 20 miles res Geothermal: 20.5% of the land available in Southwest Detroit Overall: 1. Use 3,586.2 acres of land for solar and geothermal energy production (this land could be duel use such as 13 PV and geothermal together, or PV could be on any appropriate vertical, horizontal or angle13surface.) 2. We need 3.297 x 10 kJ and using reasonable assumptions we could deliver 3.67 x 10 kJ 3. Fully review Detroit Salt mines as an energy option