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Updated: Jul 11, 2026

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Experimental Methods for Efficient Solar Hydrogen Production in Microgravity Environment
Published on: December 3, 2019
Economic feasibility of solar water and space heating
Summary
Solar water and space heating systems show economic feasibility for homes and apartments. Federal tax credits significantly boost the cost-competitiveness of solar energy, impacting policy decisions.
Area of Science:
- Energy Economics
- Renewable Energy Systems
Background:
- Analysis of solar water and combined water/space heating economic feasibility in 1977-1978.
- Focus on single-family and multi-family residences across four U.S. cities.
Purpose of the Study:
- To evaluate the economic viability of solar heating systems.
- To compare solar systems with conventional heating (electricity, fuel oil, natural gas).
- To assess the impact of federal solar tax credits.
Main Methods:
- Economic analysis using payback period, down payment recovery, and net positive cash flow criteria.
- Comparative cost analysis for solar vs. conventional heating in Boston, Washington D.C., Grand Junction, and Los Angeles.
Main Results:
- Some solar water and space heating systems are economically competitive even without federal incentives.
- The federal solar tax credit substantially improves the cost-competitiveness of solar energy systems.
Conclusions:
- Solar heating systems demonstrate promising economic feasibility, especially with government incentives.
- Findings have implications for energy pricing policies and government tax incentives for solar energy.
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