GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together.
If nothing happens, download GitHub Desktop and try again. If nothing happens, download Xcode and try again. If nothing happens, download the GitHub extension for Visual Studio and try again. Our teachers were Pr. Andrew Ng and Pr. Dan Boneh. Goal: predict the hourly power production of a photovoltaic power station from the measurements of a set of weather features. Skip to content. Dismiss Join GitHub today GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together.
Sign up. Python Branch: master. Find file. Sign in Sign up. Go back. Launching Xcode If nothing happens, download Xcode and try again. Latest commit. ColasGael Delete temp. Latest commit a7d9fe4 Nov 7, Language: Python, Matlab, R Goal: predict the hourly power production of a photovoltaic power station from the measurements of a set of weather features. This project could be decomposed in 3 parts: Data Pre-processing: we processed the raw weather data files input from the National Oceanographic and Atmospheric Administration and the power production data files output from Urbana-Champaign solar farm to get meaningful numeric values on an hourly basis ; Feature Selection: we run correlation analysis between the weather features and the energy output to discard useless features, we also implemented Principal Component Analysis to reduce the dimension of our dataset ; Machine Learning : we compared the performances of our ML algorithms.
Implemented models include Weighted Linear Regression with and without dimension reduction, Boosting Regression Trees, and artificial Neural Networks with and without vanishing temporal gradient Our final report and poster are available at the root. You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window. Data Processing. May 6, Principal Components Analysis. Random Forest.
Recurrent Neural Network. Jul 29, Weighted Linear Regression. Delete temp. Nov 7, Production of alternative energy sources, such as solar energy, are governed by the vagaries of weather. For instanceindoor heating demands are inversely correlated with solar radiation availability. The important question is how does one estimate solar energy production efficiently in order to solve the demand-supply mismatch in alternate energy.Life card gun gadget
Weather phenomenon is a complex physical causation that are difficult to model accurately. Existing solutions to solar irradiance prediction and forecasting, are expensive high subscription feerequire satellite readings high computational cost and infrastructure and are prone to high latency two measurements per day. We propose in our research work the use of sky-camers to forecast solar irradiance. A sky-camera is an inexpensive upward facing wide-lensed camera that can be easily deployed in solar farms and roof-tops.
The high accuracy and low latency of predictions with the help of a sky-camera can give rise to many interesting applications such as demand-supply matching, energy storage optimization, and predictive panel maintenance solutions. The figure below shows an example of sky-camera deployed in the vicinity of solar farms and some sample unprocessed frames from two different sky-cameras. Feng et. There have been other interesting applications as well such as the work by Shao et.
We introduce two publicly available datasets of sky-videos, namely Colorado  and Arizona  dataset with over a million images. Below images show the respective sky cameras installed at each of the two different locations.Datatables show all rows
We outperform meteorological physics models whose parameters are tuned by coarse grained radiometric data sensed from geo-satellites for nowcasting and upto 4 hours ahead-of-time . This research presents a deep learning approach to observe and estimate short-term weather effects from sky-videos obtained with sky-cameras and directly forecast solar irradiance. Our approach utilizes dilating convolution filters to learn a full-sky representation at varying scales via joint-training aided by auxiliary weather parameters that are sensed simultaneously.
The architecture diagram for our approach is illustrated below. Here are two sample videos in the month of April from two datasets obtained from Arizona and Colorado in the United States respectively.Sudan companies directory
We chose these videos, as they illustrate the challenges of irradiance forecasting torrential rainy days in early summer. Corresponding to each frame, the interpolated mean of the hypercolomns is plotted that is indicative of the focus of convolution filters. The Colorado video setup TSI consists of a sun tracker to protect the lens and equipment from direct exposure to the sun.
Prediction of Buildings Energy Consumption
Hence, the autofocus allows the camera to capture the clouds more clearly. We pick a challenging video from the dataset with large intra-day variations in solar irradiance. Notice, that the error in nowcasting is higher, when the sun tracker miss-fires. We have extended our present work to perform future frame semantic segmentation on sky videos in order to further improve the results of our solar irradiance forecasting.
Our initial results and proposed approach is available on arXiv. The below gif shows sample semantic segmentation of now predictions. The three images in the illustration are a sequence of input frames, the corresponding ground truth and semantic masks generated from our approach, respectively.In this project, we apply five machine learning models Gaussian process regression, linear regression, K-Nearest Neighbour, Random Forests and Support Vector regression to predict energy consumption of a campus building.
Machine learning models produce accurate energy consumption forecasts and they can be used by facilities managers, utility companies and building commissioning projects to implement energy-saving policies. For university facilities, if they can predict the energy use of all campus buildings, they can make plans in advance to optimize the operations of chillers, boilers and energy storage systems.
Request data for your own research. As Harvard CGBC researchers, we launched a new web app that uses statistical modeling and historical data to help predict building energy consumption. Users do not need to have any machine learning background. Read tutorial Explore demo Watch video. I created this vertical sankey diagram for Elena Vanz's research on urban sustainability rating systems to explore the relationship between indicators and the themes they express. More details can be found in the paper "A multiscalar and multi-thematic comparative content analysis of existing urban sustainability rating systems".
I designed this time-series chart to present gaussian process prediction results. The code is written on top of highcharts. The blue line with small white circles shows the predictive mean values.
The blue dots show the measured values. If the measured value falls out of the predictive range, the dot will turn red. A visualization that displays the energy consumption of buildings at Harvard written in D3. The visualization features interactive google map, bar charts and linear regression analysis of monthly building energy consumption.
Building Energy Consumption Prediction A comparison of five machine learning algorithms. More details. Gaussian Process Forecasting Web Tool. Bin Yan and Wenbo Shi Jan 31, Read tutorial Explore demo Watch video Go to the tool.
Data Visualization Projects. Some Madness in Sankey Bin Yan July 1, Time-series chart with confidence range Bin Yan July 7, Skip to Main Content. A not-for-profit organization, IEEE is the world's largest technical professional organization dedicated to advancing technology for the benefit of humanity. Use of this web site signifies your agreement to the terms and conditions.
With regard to solar electricity providers and a grid operator, it is critical to accurately predict solar power generation for supply-demand planning in an electrical grid, which directly affects their profit.
This prediction is, however, a challenging task because solar power generation is weather dependent and uncontrollable. In this study, a daily prediction model based on the weather forecast information for solar power generation is proposed.Scary movie x reader
In the case of the proposed model, the cloud and temperature data available from the weather forecast information is used to predict the amount of solar radiation as well as a loss adjustment factor to reflect the possible loss of power generation due to the degradation or failure of the PV module.
Using the proposed model, solar power generation for the following day can be predicted. The proposed model is embedded into a solar PV monitoring system that is commercially used in Korea, and it is shown to perform better than the existing prediction models.
Article :. Date of Publication: 26 September DOI: Sponsored by: Institution of Engineering and Technology. Need Help?GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together.
Skip to content. Permalink Dismiss Join GitHub today GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. Sign up. Branch: master. Find file Copy path.
Raw Blame History. Dropout 0. You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window. Set y values of data to lie between 0 and 1. Import and pre-process data for future applications. Create training dataset. Create dev dataset. Create test dataset. Construt and return Keras RNN model.
Alternative parameters:. Save output predictions for graphing and inspection. Return MSE error values of all three data sets based on a single model.
Calculate MSE between two arrays of values. Import test data Standard vanilla LSTM model. Adaboost model ensemble learning. Loop through the indices the split method returns. Generate batches from indices. Clear model, and create it. Grid search to optimize model params.The issue of energy performance of buildings is of great concern to building owners nowadays as it translates to cost. According to the U. Some states and municipalities have adopted energy savings targets for buildings in an effort to reduce air pollution and climate change in urban areas as well as regionally and globally.
In this project, we apply five machine learning models on weather data, time data and historical energy consumption data of Harvard campus buildings to predict future energy consumption. Submeters and sensors are installed in these buildings for the measurements of hourly and daily consumption of three types of energy: Electricity, Chilled Water and Steam. Machine learning models produce accurate energy consumption forecasts and they can be used by facilities managers, utility companies and building commissioning projects to implement energy-saving policies.
For university facilities, if they can predict the energy use of all campus buildings, they can make plans in advance to optimize the operations of chillers, boilers and energy storage systems. Data Collection We obtained hourly weather data from two different sources, a weather station located on Harvard campus and purchased weather data from weather stations located in Cambridge, MA. These weather data contains extremely detailed weather datasets including outdoor temperature, humidity, wind speed, wind direction, solar radiation, atmospheric pressure, dehumidification, etc.
Hourly and daily energy consumption data for electricity, chilled water and steam were downloaded from Harvard Energy Witness website. These files contains cumulative submeters readings and a lot of information that needed to be clean up. A different occupancy factor is assigned to school days, weekends and holidays.
Solar Irradiance forecasting using Sky-Camera
The process of collecting, cleaning and reformating the data collected required extensive work and it is well documented in the ipython notebook Data Wrangling. Before designing the energy prediction model, we had analyzed the collected data to discover some interesting findings that we would then explore further. These preliminary results are described here. More details can be found in Exploratory Analysis iPython Notebook.
We collected the data for one building and divided it into training and test sets. For each machine learning model, we trained the model with the train set for predicting energy consumption and used the test set to verify the prediction model.
Once we figure out the most effective machine learning model, the most influential features, the most suitable parameters using the data of one building, this trained model could be used to predict energy consumption of another building of similar type: similar HVAC system, similar room space, room type office or labs.
Our findings indicate that Gaussian Process Regression outperforms other methods. Click on Summary and Conclusion to learn about more key findings.As part of this project, new solar forecasting technology will be developed that leverages big data processing, deep machine learning, and cloud modeling integrated in a universal platform with an open architecture.
Similar to the Watson computer system, this proposed technology will leverage deep machine learning and self-adjusting voting algorithms to decide between various forecasting models and expert systems. This approach will yield the best forecasts and more importantly, continuously improve and adjust as the system is operating and evolving.Energy storage & Artificial intelligence - Sustainable Energy
Similar to the recently demonstrated Watson computer system, the proposed technology will leverage deep machine learning and self-adjusting voting algorithms to decide between various forecasting models and expert systems.
The solar forecasting framework is independent of proprietary weather or solar radiation models and enables the technology to scale and to be adopted by solar producers, electrical utilities, independent system operators ISOsand other stakeholders.
Watt-Sun: A Multi-Scale, Multi-Model, Machine-Learning Solar Forecasting Technology
The forecasting will also be validated at multiple sites with significantly different weather patterns. The team will work closely with utilities, solar power producers, and ISOs to integrate the proposed technology and to determine the value of solar forecasting on daily operation, load modeling, optimizing spinning reserve, and day ahead planning.
The goal of the project is the development and demonstration of an improved solar forecasting technology short: Watt-sunwhich leverages new data processing technologies and optimal blending between different models and expert systems using deep machine learning methods. The technology promises significant advances in accuracy of solar forecasting as measured by existing or new metrics which themselves will also be developed within the scope of this project. This solar forecasting framework is independent of proprietary weather or solar radiation models and enables the technology to scale and to be adopted by solar producers, electrical utilities, independent system operators, and other stakeholders.
The developed technology will be integrated into the operation of at least one Independent System Operator ISO and one utility. Skip to main content.
APPROACH Similar to the recently demonstrated Watson computer system, the proposed technology will leverage deep machine learning and self-adjusting voting algorithms to decide between various forecasting models and expert systems.
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