frantzen
Re:Launch HN: Prometheus (YC W19) – Remove CO2 from Air and Turn It in...
on Tuesday May 07, 2019 @10:05AM (#19849418)
Hello Rob, thanks for the post! Has your company performed an energy return on energy invested (EROI) accounting for your process? Few companies provide comprehensive and transparent EROI and/or CO2 emissions accounting for their product(s). I know you explained that the inputs are low-carbon; however (1) “renewable” energy is still anywhere from 10-50 gram CO2 per kWh (effectively), and (2) the CO2-intensity of your capital equipment can be depreciated over the useful lifespan of said equipment and allocated to each effective unit of energy generated (kWh or gallon?). I’m genuinely excited about your technology; your low capital costs, inexpensive materials, flexible/intermittent operations, and hopefully low maintenance cost — all sound very promising.
Re:Launch HN: Prometheus (YC W19) – Remove CO2 from Air and Turn It in...
on Tuesday May 07, 2019 @09:20AM (#19849056)
Hello Rob, thanks for the post! Has your company performed an energy return on energy invested (EROI) accounting for your process? Few companies if any provide a comprehensive EROI and/or CO2 emissions accounting for their product(s). I know you explained that the inputs are low-carbon; however (1) “renewable” energy is still anywhere from 10-50 gram CO2 per kWh (effectively), and (2) the CO2 intensity of your capital equipment can be depreciated over the useful lifespan and then allocated to each effective unit of energy (kWh or Gallon?). I’m genuinely excited about your technology; your low capital costs, inexpensive materials, intermittent operations, and hopefully low maintenance costs all sound very promising.
Re:Launch HN: Prometheus (YC W19) – Remove CO2 from Air and Turn It in...
on Tuesday May 07, 2019 @09:15AM (#19849022)
Hello Rob, thanks for the post. I studied with Chichilnisky before founding, and have reviewed Thermostat. Has your company performed an energy return on energy invested (EROI) accounting for your process? Few companies (engaged in fossil fuels, renewables, or CCS) provide a comprehensive EROI and/or CO2 emissions accounting for their products. I know you explained that the inputs are low-carbon; however (1) “renewable” energy is still anywhere from 10-50 gram CO2 per kWh (effectively), and (2) the CO2 intensity of your capital equipment can be depreciated over the useful lifespan of said equipment and then allocated to each effective unit of energy (kWh? or Gallon?). I’m genuinely excited about your technology; your low capital costs, cheap materials, intermittent operations, and hopefully low maintenance cost all sound very promising.