Role of Grids for Electricity and Water Supply with Decreasing Costs for Photovoltaics

Book excerpt: 8.1.3 Importance of Greywater Recycling -- 8.1.4 Greywater Recycling Technologies -- 8.1.5 Greywater Reuse and Regulations -- 8.1.6 Economics of Greywater Recycling -- 8.1.7 Cost Benefit Analysis -- 8.1.8 Results -- 8.1.9 Energy Use by Greywater Recycling Plants -- 8.2 Water Network Access Costs -- 8.3 Rainwater Harvesting -- 8.3.1 Rainfall in Cologne and Rainwater Storage Tank -- 8.4 Groundwater Extraction -- 8.5 Wastewater Treatment -- 8.6 Results -- 8.6.1 Water Balance in a Water Autonomous House -- 8.6.2 Economics of Water Autonomous House -- 8.6.3 Economics of Electricity and Water Autonomous House -- 8.7 Concluding Remarks -- 9 CONCLUSIONS AND FURTHER RESEARCH -- 9.1 Conclusions -- 9.2 Further Research -- References -- Schriftenreihe Erneuerbare Energien und EnergieeffizienzRenewable Energies and Energy Efficiency -- Back cover