solar energy
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Solar Energy. Solar Energy Overview for NIFA Presented by Michael Shonka. Goals. By the end of this presentation you should be able to; understand the definitions for the three types of solar systems - air, water and electric, validate the cost effectiveness of solar and - PowerPoint PPT PresentationTRANSCRIPT
104/19/23 (c) Michael Shonka, Solar Heat & Electric, www.solaromaha.com
Solar Energy Overviewfor NIFA
Presented byMichael Shonka
Solar EnergySolar Energy
204/19/23 (c) Michael Shonka, Solar Heat & Electric, www.solaromaha.com
GoalsGoals
By the end of this presentation you shouldbe able to;
understand the definitions for the three types of solar systems - air, water and electric,validate the cost effectiveness of solar and understand solar sufficiently for project ROI.
304/19/23 (c) Michael Shonka, Solar Heat & Electric, www.solaromaha.com
Renewable EnergiesRenewable Energies
Nebraska imports 99% of its energy
Hydropower (1% of Nebraska’s energy source)
Solar – 10th nationally
Wind – 3rd nationally
Biomass – methane recovery
Geothermal – mostly heat pumps
404/19/23 (c) Michael Shonka, Solar Heat & Electric, www.solaromaha.com
Types of Solar: Thermal and ElectricTypes of Solar: Thermal and Electric
Solar Thermal – Warm Air - hollow collectors Hot Water - copper absorbers
Solar Electric – silicon and polymers
Used in all markets – residential, commercial, and industrial
504/19/23 (c) Michael Shonka, Solar Heat & Electric, www.solaromaha.com
Solar Warm Air SystemsSolar Warm Air Systems
Best use: daytime space heatingSecondary: domestic hot waterCost: least expensive
Recommendations:One 4’x8’ collector for about 400 ft2 with short duct runs. Usually have a minimum of two collectors.
604/19/23 (c) Michael Shonka, Solar Heat & Electric, www.solaromaha.com
Solar Air – 5 Collectors, 3 ZonesSolar Air – 5 Collectors, 3 Zones
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Solar Hot Water SystemsSolar Hot Water Systems
Best use: domestic hot waterSecondary: storage and space heatingCost: low to moderate
Recommendations:Minimum of two 4’x8’ collectors with 60-80 gallon tank for closed loop or drainback systems. Addmore for space heating.
(c) Michael Shonka, Solar Heat & Electric, www.solaromaha.com
804/19/23 (c) Michael Shonka, Solar Heat & Electric, www.solaromaha.com
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Solar Hot Water & Storage SystemSolar Hot Water & Storage System
(c) Michael Shonka, Solar Heat & Electric, www.solaromaha.com
1204/19/23 (c) Michael Shonka, Solar Heat & Electric, www.solaromaha.com
Solar Hot Water - CondosSolar Hot Water - Condos
1304/19/23 (c) Michael Shonka, Solar Heat & Electric, www.solaromaha.com
Solar Hot Water - ApartmentsSolar Hot Water - Apartments
1404/19/23 (c) Michael Shonka, Solar Heat & Electric, www.solaromaha.com
Solar Hot Water - HospitalSolar Hot Water - Hospital
1504/19/23 (c) Michael Shonka, Solar Heat & Electric, www.solaromaha.com
Radiant Floor Layout – Solar HeatingRadiant Floor Layout – Solar Heating
1604/19/23 (c) Michael Shonka, Solar Heat & Electric, www.solaromaha.com
Solar Electric SystemsSolar Electric Systems
Best use: lighting, electronics, remote applications, back-up power
Secondary: stand alone or utility intertie
Cost: moderate to high
Recommendations:Excellent for running other solar components (controller and either blower or pump). Very good for remote lighting and water pumping if power is cost prohibitive.
1704/19/23 (c) Michael Shonka, Solar Heat & Electric, www.solaromaha.com
Residential Solar Electric SystemResidential Solar Electric System
1804/19/23 (c) Michael Shonka, Solar Heat & Electric, www.solaromaha.com
4.8 kW grid tied solar electric system
1904/19/23 (c) Michael Shonka, Solar Heat & Electric, www.solaromaha.com
How can solar be adopted more widely?How can solar be adopted more widely?
Drive consumer demand, awareness, solutions:
High gas prices help… especially natural gasSolar and energy conservation educationMuni and utility promotions; bond issuesState and federal tax credits – balances marketInvestment capital for projects with good ROIsFederal and private research fundsMove from centralized to decentralized systems
Evaluating a Project’s Solar PotentialEvaluating a Project’s Solar Potential
1. There has to be a demand for heat or electric in the building or manufacturing.
2. There has to be a sunny area facing south for the collector placement.
3. Check the numbers - compare the installation and credits to the savings.
04/19/23 20(c) Michael Shonka, Solar Heat & Electric, www.solaromaha.com
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Solar Tax CreditSolar Tax Credit
Residential•30% of solar hot water
•30% of solar electric
•Carry back one year, forward three years
•Applies to second homes also
•Usually breaks even in 5 years
Commercial•30% of solar installation - no limit to investment
•Carry back one year, forward three years, allows for third party leases, energy investors
•Very flexible financial tools•ROI up to 8%
Solar Evaluation and Installation ProcessSolar Evaluation and Installation Process
Solar application is studied – hot water (or electric)
- data collected on usage, utility rates, building, …
- calculate project cost and returns
Present project to building owner / investor for evaluation
Commission to proceed with design and financials
Contract between building owner and investor
- building owner purchases discounted energy
- investor installs, maintains system, receives credits
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Continued development of large scale, expensive and centralized systems – requires re-alignment of incentives
Increasing development of smaller scale, mixed investment and distributed systems using renewable technologies
Future TrendsFuture Trends
2404/19/23 (c) Michael Shonka, Solar Heat & Electric, www.solaromaha.com
Solar and Renewable EnergiesSolar and Renewable Energies
For more information:
www.NebraskaSES.orgMichael Shonka www.NEO.ne.gov
402-590-5900 www.energy.IOWA.gov
[email protected] www.mccneb.edu/solar
www.solaromaha.com www.NREL.gov
2504/19/23 (c) Michael Shonka, Solar Heat & Electric, www.solaromaha.com