Studies on Grid Reliability With High Penetrations of Wind, Water, and Sunlight (WWS)

Matching demand with supply at low cost in 139 countries among 20 world regions with 100% intermittent wind, water, and sunlight (WWS) for all purposes (Renewable Energy, 2018) (pdf)

----- One set of simulations (Case A) from paper: 2050-2054 simulations matching all-sector energy demand with 100% WWS supply, electricity storage (CSP with storage, batteries, pumped-hydro, existing hydroelectric reservoirs with zero added turbines ), heat storage, cold storage, and hydrogen storage in 20 world regions encompassing 139 countries: Africa (pdf) Australia (pdf) Central America (pdf) Central Asia (pdf) China-Mongolia-Hong Kong-North Korea (pdf) Cuba (pdf) Europe (pdf) Haiti-Dominican Republic (pdf) Iceland (pdf) India-Nepal-Sri Lanka (pdf) Jamaica (pdf) Japan-South Korea (pdf) Mideast (pdf) New Zealand (pdf) Philippines (pdf) Russia-Georgia (pdf) South America (pdf) Southeast Asia (pdf) Taiwan (pdf) U.S.-Canada (pdf)

----- Global cooling due to wind turbines (pdf)

A low-cost solution to the grid reliability problem over 48 contiguous U.S. states with 100% penetration of intermittent wind, water, and solar for all purposes (Proceedings of the National Academy of Sciences, 2015) (pdf) Clarification (pdf)

----- Paper awarded Cozzarelli Prize from PNAS (link)

----- Reply to Bistline commentary (pdf) Reply to Clack commentary in journal format (pdf) Reply to Clack commentary line-by-line (pdf) Reply to Clack commentary for general readers (link) FAQs about correcting record (pdf) Response to Caldeira about hydro assumption (pdf) Reply to Bryce-National Review (link) Reply to Conca-Forbes (link) Reply to Porter-NYT (link) Interview-GreenTech Media (link) Setting Record Straight-CleanTechnica (link) Hydropower times series (xlsx)

----- Why the main conclusion of Clack et al. is based on their own factual errors (pdf)

----- 42 peer-reviewed published research articles among 12 independent groups with 77 different authors supporting the result that energy for electricity, transportation, heating/cooling, and/or industry can be supplied reliably with or near 100% renewable energy worldwide (pdf)

Combining wind, solar, geothermal, and hydroelectric to match contemporary power demand in California with 99.8% carbon-free sources (Renewable Energy, 2010) (pdf)

Review of potential of intermittent renewables to meet power demand (Proceedings of IEEE, 2012) (pdf)

The carbon abatement potential of high penetration intermittent renewables (Energy and Environmental Science, 2012) (pdf)

Effects of aggregating electric load in the United States (Energy Policy, 2012) (pdf)

Variability and uncertainty of wind power in the California electric power system (Wind Energy, 2013) (pdf)

Optimized mixes of wind and solar on a fully-renewable U.S. electricity grid (Energy, 2014) (pdf)

Flexibility mechanisms and pathways to a highly renewable U.S. electricity future (Energy, 2016) (pdf)

Temporal and spatial tradeoffs in power system modeling with assumptions about storage: An application of the POWER model (Energy, 2016) (pdf)

Combining offshore wind and electrolytic hydrogen storage (J. Power Sources, 2017) (pdf)

Matching hourly and peak demand by combining renewables (Stanford VPUE Report, Hoste et al., 2009) (pdf)

Studies on combining wind and wave power (link)

Studies on powering the world, U.S., and individual states with wind, water, and sunlight (link)

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