CASE STUDIES Archives - 247Solar, Inc. https://247solar.com/category/case-studies/ Solar Power That Gets You Through the Night Mon, 17 Oct 2022 14:34:15 +0000 en-US hourly 1 https://247solar.com/wp-content/uploads/2021/11/cropped-favicon-v03-247Solar-32x32.png CASE STUDIES Archives - 247Solar, Inc. https://247solar.com/category/case-studies/ 32 32 Carbon-Free Energy from Industrial Exhaust https://247solar.com/carbon-free-energy-industrial-exhaust/?utm_source=rss&utm_medium=rss&utm_campaign=carbon-free-energy-industrial-exhaust Fri, 07 Oct 2022 15:39:11 +0000 https://247solar.com/?p=5442 Case Study | Carbon-Free Energy

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]]> The exhaust from many industrial processes is clean and very hot (850 -1,000°C), yet in many cases it is simply vented into the atmosphere…in other words, it’s wasted. 

OUR SOLUTION

247Solar’s Heat2Power™ Turbine converts waste heat to electricity without emissions 

  • Electricity can be used or sold 
  • Turbine’s 650℃ exhaust can be used to reduce fuel costs for industrial process heat 
  • Uses atmospheric-pressure clean air, minimum 850℃ 
  • Ideal for use with RTOs (Regenerative Thermal Oxidizers) that clean dirty industrial exhausts
EXAMPLE USE CASE 

A landfill in Australia uses a municipal solid waste gasifier that converts a wide variety of solid waste to useful products. These reduce landfill volume and resulting methane emissions. The gasifier’s dirty exhaust is connected to an RTO. In turn, the oxidizer’s clean hot exhaust drives 247Solar’s Heat2Power Turbine to produce electricity and also to supply heat to the gasification process. 

Twenty percent (20%) of the turbine’s output eliminates the gasifier’s power costs. The remaining 80% is available for profitable sale. The turbine’s waste heat (up to 650oC) can be used by different gasifiers in different ways. 

 BENEFITS 

  • Turbine’s electricity reduces operating expenses, creates new revenue stream 
  • Turbine’s heat further reduces operating costs 
  • Gasifiers reduce solid waste streams to municipal landfills 
  • Smaller landfills mean less climate-warming methane 
  • Zero carbon power and heat help mitigate climate change 

Contact: info@247solar.com

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]]> Green Hydrogen https://247solar.com/green-hydrogen-round-the-clock-clean-power-for-electrolysis/?utm_source=rss&utm_medium=rss&utm_campaign=green-hydrogen-round-the-clock-clean-power-for-electrolysis Wed, 21 Sep 2022 16:45:30 +0000 https://247solar.com/?p=5387 Case Study | Green Hydrogen

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]]> Green hydrogen is the ideal replacement for today’s fossil fuels, yet green hydrogen currently accounts for less than 1 percent of all hydrogen produced. Most of today’s hydrogen is made using dirty processes. For hydrogen to be called truly green, its production must be powered by renewable sources using a process, like electrolysis, that produces zero emissions. 

OUR SOLUTION
247Solar Plants™ Low-cost 24/7 clean power and heat for producing abundant, economical, and truly green hydrogen

Green hydrogen is produced by electrolysis—a process that produces hydrogen from water. The challenge is that producing large amounts of hydrogen in this way requires expensive equipment that must operate 24/7 to be economical. Enter 247Solar Plants™:

  • A round-the-clock zero carbon solution, scalable to electrolysis facilities of any size
  • Unique design produces combined heat and power (CHP)
  • Heat above 500℃ increases electrolyzer efficiency by up to 40%
  • Adaptable to electrolyzers from any manufacturer
EXAMPLE

247Solar is partnering with one of the world’s largest industrial gas suppliers to develop a turnkey system to produce the world’s lowest cost green hydrogen using our 247Solar Plant™. Project will design and build a pilot facility that integrates the electrical and thermal outputs from a 247Solar Plant with a high-efficiency Solid Oxide Electrolysis (LT SOEL) system.

OUTCOME
  • Low-cost electrolysis with high process efficiency (est. 80%) and a high capacity factor
  • Continuous green H2 production 24/7/365
  • Levelized cost of hydrogen (LCOH) less than $2.50/kg H2

 

Contact: info@247solar.com

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]]> Economic Development Zones https://247solar.com/economic-development-zones-distributed-clean-baseload-power-24-7-365/?utm_source=rss&utm_medium=rss&utm_campaign=economic-development-zones-distributed-clean-baseload-power-24-7-365 Wed, 21 Sep 2022 16:30:11 +0000 https://247solar.com/?p=4290 Case Study | 24/7 Economic Development Zones

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]]> Emerging economies require more power, every hour, not just when the sun shines or the wind blows, but all the time — reliably, economically, and cleanly. But the world will no longer finance fossil fuel baseload power plants. What to do?

OUR SOLUTION
Economic Development Zones Using 247Solar Plants™

The old paradigm of large central power plants is obsolete. The new paradigm is distributed power – PV, wind, and batteries located closer to the customer. But rarely can these resources provide baseload power. Enter 247Solar Plants. This new, modular, game-changing solution operates every hour of the year to provide the super-reliable baseload power essential for economic growth. If located near the point of use, they provide the additional benefit of 24/7 industrial-grade heat. Governments can then create Economic Development Zones to attract new industries and create jobs.  Additional benefits include:

PATHWAY EXAMPLE
A mineral sands mining operation (high-grade silica for use in PV cells) in Queensland, Australia, transitions from 100% diesel to 24/7 carbon-free power as each genset reaches end of life.

  • Requirement: Initial 1.1MW renewable power growing to 4.0MW within 3 years
  • Implementation:
    • Phase 1 pilot:  1 x 247Solar Plant (400kW) 
    • 1 x STAG-Tech Modular Wind Turbine (200kW)
    • 1 x 247Solar HeatStorE battery (200kW/1.8MWh)
    • PV: 0.5MW
  • Phase 2 PPA: Pilot plus up to additional 10MW of clean power as gensets reach end of life
OUTCOME
  • Gensets phased out
  • Reduced carbon footprint of 90%; reaches 100% if/when green hydrogen is used for the remaining 10%
  • Reduced cost of power up to 90%
  • Reduced operating costs for power equipment up to 5

Contact: info@247solar.com

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]]> 24/7 PV Farms https://247solar.com/24-7-pv-farms-round-the-clock-power-from-solar-panels/?utm_source=rss&utm_medium=rss&utm_campaign=24-7-pv-farms-round-the-clock-power-from-solar-panels Wed, 21 Sep 2022 16:22:40 +0000 https://247solar.com/?p=5399 Case Study | 24/7 PV Farms

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]]> PV farms deliver power only when the sun shines. But people need power all the time. Also, peak demand is usually in the evening or early morning when PV is not operating. Conventional batteries can help somewhat, but they’re expensive and can’t carry the PV system through the night. During bad weather, the system produces nothing. What can be done to enable a PV farm to operate every hour of the year?

OUR SOLUTION
HeatStorE™ overnight heat battery with 24/7 dispatchability

247Solar’s HeatStorE™ long-duration thermal battery converts electricity from wind turbines to heat and stores it for 9 hours or more in inexpensive materials like sand or iron slag. Yet, HeatStorE operates almost exactly like conventional electrochemical batteries. And uniquely, HeatStorE provides guaranteed power even when fully discharged. The system provides its own backup by burning almost any locally-available fuel, including hydrogen, when its thermal storage is depleted. HeatStorE furnishes round-the-clock baseload power to enable wind farms to deliver 24/7 clean electricity.

Benefits include

  • Clean power overnight and in any weather
  • Load shifting of 8 hours or more to avoid demand charges
  • Eliminates gensets by acting as its own backup
  • Creates a revenue stream where PV oversupply is substantial and electricity costs are negative
  • Low maintenance and operating costs
  • No safety or environmental hazards
EXAMPLE

Because a grid in South Australia includes so much PV and wind during the day, it curtails the solar output of an Australian 400kW PV farm by 30-35%. In fact, there is so much excess power on the grid that the utility pays users to take it (negative LCOE). Conversely, during evening and early morning peaks when the sun is not shining, the grid pays a premium for power.

Energy Requirements

  • 200kW long-lasting electricity storage to capture excess grid power, harness otherwise-curtailed energy from PV, and facilitate load-shifting overnight

Solution

  • A single 247Solar 200kWe, 1.8MWH HeatStorE™ long-duration thermal battery

Outcome

  • Up to AU$100,000 additional revenue per year for the PV farm
  • New revenue stream from grid operator
  • Fully utilized output from PV
  • Lower overall electricity costs due to load-shifting

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]]> 24/7 Wind Farms https://247solar.com/24-7-wind-farms/?utm_source=rss&utm_medium=rss&utm_campaign=24-7-wind-farms Wed, 21 Sep 2022 16:10:26 +0000 https://247solar.com/?p=5395 Case Study | 24/7 Wind Farms

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]]> Wind farms deliver power only when the wind is blowing, and maximum generation only occasionally coincides with peak demand. Yet people need power all the time. Conventional batteries can help somewhat, but they’re expensive and only last a few hours. When the wind subsides, the system produces nothing. What can be done to enable wind farms to operate every hour of the year?

OUR SOLUTION
HeatStorE™ long-duration heat battery with 24/7 dispatchability

247Solar’s HeatStorE™ long-duration thermal battery converts electricity from wind turbines to heat and stores it for 9 hours or more in inexpensive materials like sand or iron slag. Yet, HeatStorE operates almost exactly like conventional electrochemical batteries. And uniquely, HeatStorE provides guaranteed power even when fully discharged. The system provides its own backup by burning almost any locally-available fuel, including hydrogen, when its thermal storage is depleted. HeatStorE furnishes round-the-clock baseload power to enable wind farms to deliver 24/7 clean electricity.

Benefits include:

  • Clean power day and night in any weather
  • Increased wind farm revenues and profits, especially where wind power oversupply is substantial and electricity costs are negative
  • Load shifting of 8 hours or more
  • Participation in profitable arbitrage during periods of peak demand
  • Low maintenance and operating costs
  • No safety or environmental hazards
EXAMPLE

2 MW wind farm in Germany, where there is an enormous amount of wind and PV generation on the grid and supply often greatly exceeds demand.

Energy Requirements

  • 2 MW long-lasting electricity storage to capture excess grid power, harness otherwise curtailed energy from wind, and facilitate 24/7 operation

Solution

  • Ten 247Solar 200kWe, 1.8MWH HeatStorE™ long-duration thermal batteries

Outcome

  • Up to €1 million additional revenue per year for the wind farm
  • New revenue stream and profits
  • Fully utilized output from the wind farm
  • 24/7 operation from the wind farm
EXAMPLE COMPARISON

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]]> Stressed Grid Substations https://247solar.com/stressed-grid-substations/?utm_source=rss&utm_medium=rss&utm_campaign=stressed-grid-substations Wed, 21 Sep 2022 15:49:51 +0000 https://247solar.com/?p=5385 Case Study | Stressed Substations

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]]> Extreme weather, variable PV and wind, and aging infrastructure are straining grids. Stressed substations, particularly those at the grid’s edge, present especially difficult and costly challenges. At times, they can be overwhelmed by too much power on the grid, e.g., from too much PV or wind. At other times aging infrastructure coupled with the often widely variable demand they serve outstrips a substation’s ability to provide reliable electricity.

OUR SOLUTION
HeatStorE™: a hybrid long-duration battery and spinning reserve

247Solar’s HeatStorE™ operates almost exactly like electric batteries but also provides spinning reserves at substation scale. HeatStorE stores excess electricity from the grid or renewables as heat and converts that heat to electricity on demand for 9 hours or more on a single charge. As a spinning reserve, HeatStorE burns a local fuel to produce power whenever needed even when storage is depleted.

Benefits include:

  • Increased grid reliability and reduced costs
  • 24/7 fully-dispatchable standby power
  • Spinning reserves to meet fluctuating demand
  • Load shifting of 8 hours or more
  • Increased substation resiliency
EXAMPLE

A stressed edge-of-grid substation in Australia faces a dilemma serving a remote community. A conventional upgrade will be too costly.

  1. Grid owners must either cut the connection and spend a considerable amount on PV, wind, batteries, gensets, and fuel to enable the community to generate its own power and achieve self-sufficiency or
  2. Grid owners can add HeatStorE to the substation and continue serving the community.
EXAMPLE COMPARISON

1. Cut the connection, community self-sufficiency

  • CAPEX, annualized: PV, wind, batteries, 2 MW gensets: (0.8) USD million
  • O&M/yr: (0.5) • Fuel/yr: (2.6) USD million
  • Annual revenue to system owner: (1.5) USD million
  • Annual Net: (2.4) USD million

2. Add HeatStorE and continue serving the community

  • CAPEX, annualized: 2 MW HeatStorE: (0.5) USD million
  • O&M/yr: (0.7) USD million
  • Fuel/yr: (0.6) USD million
  • Annual revenue to system owner: (1.5) USD millions
  • Annual Net: (0.3) USD million

Contact: info@247solar.com

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]]> Combined Heat & Power for Industry https://247solar.com/combined-heat-power-chp-industry-electrication/?utm_source=rss&utm_medium=rss&utm_campaign=combined-heat-power-chp-industry-electrication Thu, 02 Dec 2021 01:23:08 +0000 https://247solar.com/?p=2853 Case Study | Industry Electrification

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]]> Many industries require large amounts of both heat & power for their processes and operations. 

OUR SOLUTION 

247Solar Inc. Clean Technology

247Solar technologies provide round-the-clock combined heat & power for industry, with few if any CO2 or other emissions.

  • Improved economics:
    • Reduce energy costs 70-90%
    • Earn revenue from carbon credits or offsets
    • In US, 30% Investment Tax Credit and accelerated depreciation
    • Lock in energy costs for decades
  • Increased flexibility
    • Grid independence
    • Load shift to reduce or eliminate demand charges
  • Reduced carbon footprint
    • Reduce emissions
    • Enhance ESG credentials
  • 24/7 energy availability 
    • Electricity – 400 kWe, scalable to 10s of MW
    • Heat – Temperature: 250-1000℃
    • Volume:  10s MBTU/hour

EXAMPLE
An orange juice factory in Spain requires electricity for plant operations, steam for juice processing and hot gases for drying orange peel. Grid connected; seeking to lower electricity and heat costs and reduce carbon footprint.

  • Annual Requirement: 
    • Electricity: 25,000 MWh; Steam: 53,000 t/y (8 bar saturated); Hot gases equivalent to about 50.000 t/y of steam 
  • Implementation:
    • Pilot:  1 400kWe 247Solar Plant, modified for on-grid or off-grid operation to meet widely variable loads on-demand and facilitate load shifting to optimize electricity costs.
    • Rollout: Increase total installed capacity to 8 MW to meet full annual power and heat requirements, reduce energy costs up to 85% and earn carbon credits.
OUTCOME
  • Reduced electricity and heat costs, pilot: LCOE < 40 €/MWH
  • Reduced electricity and heat costs, rollout: < 30 €/MWH
  • Carbon footprint: carbon negative – reduces both electrical and thermal emissions

Contact: info@247solar.com

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]]> Affordable 24/7 Clean Power & Heat Battery Solution https://247solar.com/rural-electrification-case-study-affordable-247-clean-power-heat/?utm_source=rss&utm_medium=rss&utm_campaign=rural-electrification-case-study-affordable-247-clean-power-heat Thu, 02 Dec 2021 01:13:39 +0000 https://247solar.com/?p=2849 Case Study | Rural Electrification

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]]>

Remote towns and villages require round-the-clock clean power too, at affordable cost. Solar PV and wind are incomplete solutions. Conventional batteries help but for just a few hours. Backup gensets rely on expensive, dirty fuel.

OUR SOLUTION

HeatStorE™ ALL-NIGHT BATTERY

HeatStorE™ operates almost exactly like electric batteries but is lower cost, offers overnight storage, and eliminates gensets by providing power even when fully discharged.

  • Stores excess electricity from PV and wind as heat
  • Converts heat to electricity when needed for up to 20 hours
  • Burns small amounts of fuel to produce power even when storage is depleted, for 24/7 dispatchability, eliminating gensets
  • 200 kWe per battery
  • Provides heat for hot water, crop drying, absorption refrigeration and cooling, water purification, light industry and other uses
  • Simpler operation than gensets
  • 20-year high-reliability operation with little or no performance degradation

EXAMPLE
An initiative funded by a global NGO to provide round-the-clock low-carbon power and heat to remote villages throughout Mozambique. 

  • Requirement: 
    • Electricity: 5,000 individual connections initially, scaling to 155,000 connections within 4 years Heat: Industrial-grade process heat for water purification, refrigeration, and light industry 
  • Implementation:
    • Energy source:  conventional PV from a local supplier for daytime power and battery charging 
    • Storage: 200 kWe HeatStorE batteries for reliable 24/7 power and process heat
OUTCOME
  • 24/7 fully-dispatchable clean power and heat for communities unserved by the national grid
  • Reduced power costs through elimination of gensets and near elimination of fuel 
  • Elimination of wood-fired cooking 
  • Improved economic opportunities from affordable 24/7 clean power and heat

Contact: info@247solar.com

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]]> Mining the Pathway to 100% Clean Power https://247solar.com/mining-case-study-pathway-100-percent-clean-power/?utm_source=rss&utm_medium=rss&utm_campaign=mining-case-study-pathway-100-percent-clean-power Thu, 02 Dec 2021 00:49:11 +0000 https://247solar.com/?p=2841 Case Study | 247Solar Mining

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]]> Achieving high levels of renewable energy affordably is particularly challenging for off-grid mines in remote locations because intermittent PV or wind with costly batteries still require dirty, expensive diesel for backup.

OUR SOLUTION
THE 247SOLAR MICROGRID™

Solar Energy Microgrids mining Case Study247Solar technologies are integrated with PV or wind plus batteries into the 247Solar Microgrid™ to provide continuous clean electricity while eliminating gensets and reducing fuel costs up to 90%.

  • 247Solar Plants™ supply constantly changing loads with highly responsive baseload power. PV, wind, and batteries provide power for variable loads
  • HeatStorE™ batteries store excess electricity from PV and wind as heat and convert this heat to electricity when needed for up to 20 hours. HeatStorE can also burn small amounts of fuel to produce power even when storage is depleted, for 24/7 dispatchability, eliminating gensets.
  • 247Solar technologies can also provide industrial-grade heat up to 970℃(1800℉) for ore processing, steam generation, and other applications.

PATHWAY EXAMPLE
A mineral sands mining operation (high-grade silica for use in PV cells) in Queensland, Australia, transitions from 100% diesel to 24/7 carbon-free power as each genset reaches end of life.

  • Requirement: Initial 1.1MW renewable power growing to 4.0MW within 3 years
  • Implementation:
    • Phase 1 pilot:  1 x 247Solar Plant (400kW) 
    • 1 x STAG-Tech Modular Wind Turbine (200kW)
    • 1 x 247Solar HeatStorE battery (200kW/1.8MWh)
    • PV: 0.5MW
  • Phase 2 PPA: Pilot plus up to additional 10MW of clean power as gensets reach end of life
OUTCOME
  • Gensets phased out
  • Reduced carbon footprint of 90%; reaches 100% if/when green hydrogen is used for the remaining 10%
  • Reduced cost of power up to 90%
  • Reduced operating costs for power equipment up to 5

Contact: info@247solar.com

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]]>