CSP 3.0: 247Solar Plants™ for Highly Competitive CSP The 247Solar Plant™ is a dream come true for the 21st century---a solar power plant with built in storage so it can generate electricity economically any time day or night when needed. - S. David Freeman, former head, Sacramento Municipal Utility District (SMUD), Tennessee Valley Authority (TVA), New York Power Authority, and Los Angeles Department of Water and Power (DWP) Wilson 24Solar Plant, 20 megawatts Bruce Norman Anderson, CEO 247Solar Inc. Bruce.Anderson@247Solar.com +1-617-290-9913 ssssssshhss www.247Solar.com
Presenting 40-year solar industry leader and pioneer Bruce N. Anderson, Co-founder, CEO • Began solar career in 1973 with 3 degrees from MIT • First “ Lifetime Achievement Award, ” American Solar Energy Society • Author of 5 solar energy books, including New York Times bestseller • Twice testified to US Congress • Member, MIT Corporation (Board of Trustees) • Multiple solar patents 2
IMAGINE…a solar power solution Ø That takes the best characteristics of PV and CSP Ø Discards the worst characteristics of PV and CSP AND Ø adds additional benefits Takes the best of PV……………. plus the best of CSP: • Low cost • 24 hour operation • Distributed to utility scale • Dispatchability • Low O&M/OPEX Discards the worst of PV…….. and the worst of CSP: • Unreliable, sunshine-only operation • Cost • Non-dispatchability • Complexity • Grid instability • Long project cycles • Environmental challenges • Siting constraints And adds additional benefits • Battery-like response to grid voltage/frequency fluctuations • Super flexible operation • Elimination of expense of emergency backup power plants • No cost, instantly-responsive spinning reserves • Wholesale market arbitrage 3
Design Approach Focus on lowest cost, THE driver to market acceptance 1. Maximize mass production of all components, like PV and wind 2. Minimize on-site construction time and cost, like PV and wind 3. Standardize a modular product, like wind machines 4. Slash O&M with few moving parts, no risky materials, simple operation 4
The Solution: 247Solar Plants™ Competitive with PV+batteries, will be competitive with coal 1. Mass-produced 2. quickly assembled 3. standardized, identical modules with 4. few moving parts, no exotic materials, no water/steam (low O&M) Strictly Confidential 5 9
Distributed to utility scale Operates 24/7 using very low cost thermal storage with fuel backup • Firmly dispatchable every hour of the year • Low risk, mostly proven, locally made equipment • Simple, remote operation, low maintenance • Battery-speed grid stabilization • Super flexible operation 6
Summary: 247Solar Plant™ Lowest cost 24/7 solar electricity ü Next generation CSP eliminates all major shortcoming of conventional CSP and PV ü MIT originated ü US Department of Energy funded (USD5 million) ü Competitive with PV with batteries but also 24/7 reliability; adds to grid resilience, flexibility; battery-like demand and voltage fluctuation response; spinning reserves ü Stand alone (villages, mines, etc) or utility scale ü Perfectly matches emerging markets need for 24/7 clean power ü Locally made components for local use/jobs and for export 7
“247Solar’s CSP concept has enormous potential – a home run.” Dr. Fred Morse ("Mr. CSP”) Directed DOE's solar program under both Carter and Reagan; June 2013 THE TECHNOLOGY 8
The 247Solar Plant™ breakthrough Lowest cost 24/7 solar electricity World’s most versatile, World’s highest temperature, reliable, proven power breakthrough generator solar air heater, 970 o C World’s lowest cost World’s lowest cost, proven heliostats (solar mirrors) energy storage, 2-15 hours 9
Disruptive CSP system: 247Solar Plant™ Factory made, quickly assembled; few moving parts simple to operate; no water/steam, salts, oils 2. Breakthrough 247SOLAR RECEIVER™ (air heating, no moving parts) RECEIVER OUTLET “HOT O C) AIR” (970 RECEIVER INLET “WARM O C) AIR” (650 CONVENTIONAL TOWER (~125ft (35m), not shown) AIR FLOW, warm air up, hot air down 1. Conventional MICROTURBINE (off-the-shelf, 333 kWe, outfitted with 247Solar Heat 4. 100+ year proven Exchanger™ and 247Solar Combustor™) 247SOLAR THERMAL STORAGE SYSTEM™ (4-15 hours, e.g. fire brick no moving parts) XXXX X 3. OFF-THE-SHELF SUN- 11 hhhhhhhh hh TRACKING HELIOSTATS 10 (~4 acres per 333 kWe, 16,000m 2 )
Subsystem 1. 247Solar Power Block™ World’s most versatile, reliable, proven power generators, Gas turbines: 300kWe to 25MWe 1. No water/steam , just hot air 2. Simple, low maintenance, 3. High flexible operation, fast start, rapid demand response 4. Plug-and-play , includes turbine, compressor, generator, power electronics for quick grid 5. Powered by solar and/or by a wide variety of fuels, including biofuels and natural gas, of course 6. Firmly reliable dispatchable 24/7 11
Subsystem 2. 247Solar Receiver™ World’s highest temperature solar air heater, 970 o C § Development partner: German Aerospace Center (DLR) World’s foremost experts in power tower technology http://www.dlr.de Inlet&air& Wire&mesh& Ambient pressure • Inlet&air& inlet&absorber& Outlet&air& No moving parts • Simple, high efficiency design • Quartz&window& Ceramic&foam&& outlet&absorber& U.S. Patent No. 9,726,155 12 China Patent No. 103270298A
Subsystem 3. Third party heliostats World’s lowest cost heliostats (solar mirrors) Highly accurate • All factory made • Quick assembly • No foundations • cbcbcbbccbcb 13
Subsystem 4. 247Solar Thermal Storage System™ World’s lowest cost, proven heat storage 1. >100-year-old technology 2. <5% the cost of batteries 3. 4-20 hours storage 4. No moving parts, unlimited cycles 5. Firebrick/checker brick* spaced for airflow *For more information about firebrick, see https://en.wikipedia.org/wiki/Fire_brick http://www.traditionaloven.com/articles/84/firebricks-heavy-dense-fire-clay-bricks http://news.mit.edu/2017/firebricks-low-cost-storage-carbon-free-energy-0906 14
247Solar Plant™ system diagram Few components, very few moving parts 247Solar Receiver™ P = 1 m = 2.7 m = 1.7 Daytime solar operation Exhaust air from the turbine and the m = 1 Light from thermal storage are heated in the solar heliostats m = 2.7 receiver. Some of the air passes through the thermal storage and the remainder powers 247Solar Thermal the turbine. P = Pressure Storage System™ m = Mass Main blower 247Solar Power Block™ m = 1.7 Damper open Damper closed m = 1 hhhhhhhh U.S. Patent No. 9,726,155 15 China Patent No. 103270298A
247Solar Plant™ system diagram 24/7 operation, low maintenance 247Solar Receiver™ m = 0 Night operation from m = 1 storage m = 1 Exhaust air from the turbine passes m = 0 through the thermal storage in the opposite direction to power the turbine. P = Pressure A combustor heats the air further, if 247Solar Thermal m = Mass Storage System™ needed. Main blower (off) 247Solar Power Block™ m = 1 Damper open m = 1 Damper closed hhhhhhhh U.S. Patent No. 9,726,155 16 China Patent No. 103270298A
Low risk Mostly proven, off-the-shelf components Subsystem 247Solar Power Off-the-shelf proven gas turbines Block™ 247Solar Thermal >100-year-old proven technology by steel industry, no Storage System™ moving parts 247Solar Scaled up but simplified proven technology by DLR, no Receiver™ moving parts Heliostats/field Off-the-shelf proven technology Tower Conventional tower Air Transport Conventional low-pressure ducts, blowers, dampers Subsystem Iiiiii 17
PLUS 247Solar Plants offer grid operators Never before imagined benefits… Outstanding grid Battery-like reliability, response to grid voltage, stability 24/7 free, spinning- frequency, demand reserves from fluctuations 24/7 clean power Lowers grid Mitigates operating cost intermittency eliminates cost of from renewables emergency backup with flexible power plants firm 24/7 (Capacity Credit) dispatchability 18
CSP 3.0: 247Solar Plants™ for Highly Competitive CSP The 247Solar Plant™ is a dream come true for the 21st century---a solar power plant with built in storage so it can generate electricity economically any time day or night when needed. - S. David Freeman, former head, Sacramento Municipal Utility District (SMUD), Tennessee Valley Authority (TVA), New York Power Authority, and Los Angeles Department of Water and Power (DWP) Wilson 24Solar Plant, 20 megawatts Bruce Norman Anderson, CEO 247Solar Inc. Bruce.Anderson@247Solar.com +1-617-290-9913 ssssssshhss www.247Solar.com
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