## Posts tagged ‘energy efficiency’

### Project Update: Solar Panel Demonstrator Installed

*from Bilkent University | Ankara, Turkey *

*by Ozge Topuz*

The solar statistics of Ankara can give an idea about the efficieny of solar panel installation at Bilkent University. However, in order to get exact results, we decided to install a solar panel demonstrator at Bilkent University and get real data. We installed our solar panel demonstrator and have included the preliminary measurements.

The measurements on March 22nd, 2010, at around 3 p.m. are as follows:

In sunny places

- Voltage: V=20.41 V
- Current: I=3.35 A
- Power: P=V x I=20.41×3.35=68.37 W
- Energy: E=68.37 Wp

In shadowy places

- Voltage: V=13.01 V
- Current: I=0.50 A
- Power: P=V x I=13.01×0.50=6.53 W
- Energy: E=6.53 Wp

We will keep taking data from our solar panel demonstrator at different time durations in a day, in different weather situations.

We are hoping to work with our demonstrator to develop a system which can keep track of the data collected. Our plan is to collect

- Monthly energy demand of Bilkent University
- Monthly energy generation from the proposed PV System
- Daily Weather Variation Examples of Demand and Energy Generation Results (Example during cloudy day, during partly-cloudy day and during sunny day)
- Current PV Tariff Bills and Laws (Cost estimate for tariff)
- Cost Estimate For Alternative Solutions( Calculate annual cashflow using cashflow analysis, system payback period: Calculate the present value of operations and maintenance cost throughout the lifetime, calculate the system revenue)
- Cost Estimate For Recommended Solution (Final Recommendation)

NOTE: Calculations can be done with numerical methods by using SOLVER in a spreadsheet program such as Microsoft Excel.

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