Quick Answer
Evaluating the potential for renewable energy on your land involves assessing the site's solar, wind, and hydro resources, as well as any local zoning regulations or restrictions on energy production.
Assessing Solar Potential
When evaluating a site’s solar potential, consider the latitude, elevation, and shading. A site with an unobstructed southern exposure and minimal shading will receive more solar radiation. Use the United States Department of Energy’s (DOE) solar irradiance maps or tools like the National Renewable Energy Laboratory’s (NREL) Solar Pathfinder to estimate the site’s solar potential. As a general rule of thumb, aim for at least 200-300 watts per square meter of solar irradiance to justify the installation of a solar panel array.
Evaluating Wind Potential
Wind energy potential can be evaluated by assessing the site’s wind speed and direction. Install an anemometer, a weather station that measures wind speed, to collect data over a period of at least a year. A minimum wind speed of 5 meters per second (11 mph) is recommended for a small wind turbine installation. Consider the site’s topography, with hills and ridges creating wind channels that can enhance wind speeds.
Hydro and Geothermal Potential
Hydro energy potential can be evaluated by assessing the site’s water flow and elevation changes. Consider installing a flow meter or water level sensor to collect data on water flow rates and depths. A minimum water flow rate of 1 cubic meter per second is recommended for a small hydroelectric installation. Geothermal potential can be evaluated by assessing the site’s groundwater temperature and thermal conductivity. Install a temperature probe to collect data on groundwater temperatures, with a minimum temperature difference of 10°C (18°F) between the groundwater and the surrounding soil recommended for a geothermal installation.
Find more answers
Browse the full Q&A library by topic, or jump back to the topic this question belongs to.