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Case Studies > Alternative Energy > Solar > AE 1.0 - Residential Solar 7.2 kW
 
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Statement of Methodology

Application
 Method
Energy Audit
 A whole house energy audit was provided to align the sizing of the solar array with the home energy demands.  Recommendations were made where deficiencies were found.
Note: The consumer chose a larger unit than recommended.  The purpose was to place electricity back on the grid if the opportunity exists.
Insulation of the Attic
 Insulation was increased from R13 to R38.  We plan to see if there is a corresponding decrease in energy consumption.
Solar Installation
 A 7.2 kW solar array was installed
 Inverter The inverter was installed to meet IEE standards and integrated with sub metering installed by the utility to gather data.
Net Metering
 Meters power at the connection point to the utility grid, subtracting energy produced from energy consumed.
Web Box
 A sub-metering application provided by the inverter manufacturer that measures electricity produced, and makes the information accessible via a web interface.
MySource Integration
 MySource is an open architecture system developed to allow integration with all data gathered at the end user level.  This data is accessible and displayed to the end user and the utility for purposes that are useful to the specific user and organization.


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Critical Challenges


Home Energy Consumption Comparison


Return on Investment Analysis

Production Output

Each solar array is designed to produce a specified amount of energy. Smart Energy Source will analyze how much the generator is actually producing in order to determine the actual efficiency of the generator in a specific location.


This data is on the SES gateway on MySource and is available to SES Partners. To become an SES parner, click here.


Home Energy Consumption Comparison

It has been noted that with the installation of any renewable generator, consumers change behaviors in an effort to maximize their return on investment. This case study will compare energy use before and after the generator installation in order to further analyze this theory.


This data is on the SES gateway on MySource and is available to SES Partners. To become an SES parner, click here.


Return on Investment Analysis

Using actual production output, home energy consumption comparisons, and the installation and maintenance costs of the solar array, Smart Energy Source will conduct feasibility studies of the installation. The most commonly asked questions about DG installation are how long will it take for the system to pay off, and is it more economically feasible to implement energy efficiency measures or install a DG system?


This data is on the SES gateway on MySource and is available to SES Partners. To become an SES parner, click here.


12Next
Solar ArrayAE 1.0 Solar 7.2 kW

This case study is an evaluation of a 7.2 kW residential solar array. The case study will outline the rationale and implications for a residential solar application. The goal of Smart Energy Source is to create greater understanding of how distributed generation applications can benefit the consumer and also align with utility operations. This case study will focus specifically on solar generation. The case study will provide critical information as we shape future policy related to DG.

Case Study Objectives
♦  Evaluate the requirements of interconnection as identified in IEEE standards and other interconnection procedures.
♦  Examine costs and benefits. What are the implications for utility rate structures?
♦  Identify the impact on distribution engineering and planning, and overall maintenance costs.
♦  Identify how DG will impact the utility's all power requirements contract.
♦ Create a knowledge base of best practices and best applications for the consumer.

 
Net, Generated and Consumed Use
 
 
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Start Date: 5/13/2012
End Date: 5/20/2012
 
     


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AE 1.0 - Residential Solar 7.2 kW | AE 2.0 - Resdidential Hybrid 5kW
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