PNNL: FEDS - Facility Energy Decision System The Facility Energy Decision System (FEDS) is an easy-to-use building energy efficiency software tool that quickly and objectively identifies energy efficiency improvements that maximize life-cycle savings. The Windows-based program requires only minimal user experience and input to perform energy efficiency assessment screenings as well as detailed energy retrofit project analyses across a wide variety of building types, from single buildings to large multi-building campuses and installations. Requires only minimal user input yet is able to accept detailed building system parameters. FEDS estimates unspecified parameters based on typical characteristics for a building of the specified type, size, age, and location and other details. Models energy and cost performance of heating, cooling, ventilation, lighting, motors, plug loads, refrigeration, building shell, and hot water systems, plus central plants and thermal loops.
Air Liquide inaugure son nouveau laboratoire de R&D pour l'industrie solaire ( 2 Appréciations ) Détails Catégorie : Innovations vertes Publié le vendredi 21 septembre 2012 14:35 Écrit par Fabienne Marion Air Liquide a inauguré ce jjeudi 20 septembre un laboratoire de R&D pour l'industrie solaire. La ligne de production de cellules solaires permettra de tester intégralement de nouvelles molécules et de nouveaux procédés, adaptés aux besoins de chaque client, et de les évaluer. Une équipe de scientifiques expérimentés dans le domaine des technologies photovoltaïques dirigera ces travaux de recherche, dans le centre de R&D du groupe Air Liquide situé sur le plateau de Saclay, près de Paris en France. Air Liquide est le leader mondial de la fourniture de gaz, molécules avancées et services pour l'industrie solaire Parmi les différentes technologies de cellules photovoltaïques, le silicium cristallin demeure la technologie dominante et représente 85 % de la production mondiale en termes de puissance utile. La technologie Silexium TM A propos d'Air Liquide
Solar APIs | NREL: Developer Network Access data and analysis services that provide access to solar resource data and NREL models. OpenPV (The Open PV Project) The real-time status of the solar photovoltaic market in the U.S. PVDAQ (PV Data Acquisition) Provides access to photovoltaic performance data collected by NREL for systems throughout the country. PVWatts (Version 4) (GET /api/pvwatts/v4) NREL's PVWatts calculates the energy production of grid-connected photovoltaic (PV) energy systems. PVWatts (Version 5) (GET /api/pvwatts/v5) Solar Dataset Query (GET /api/solar/data_query/v1) Returns information on the closest climate data for a location. Solar Resource Data (GET /api/solar/solar_resource/v1) Returns various types of solar data for a location. Direct Normal Irradiance (Deprecated) (GET /api/georeserv/service/solar/dni) Deprecated: We encourage you to migrate the new Solar Resource web service.
PVWatts Calculator The latest minor release in October 2016 changed our source for India rupee exchange rates and a few bug fixes. PVWatts® was updated on July 2016. Capacity Factor has been added to the displayed results page and both the monthly and hourly downloads. Our previous release as in April and it removed available incentives from the app. Our source of incentives was found not to be consistent enough to provide an accurate reflection of costs. We are often asked about the annual variation in what the system will produce and how different the actual results will be. We analyzed 30 years of historical solar irradiance and weather patterns for 239 locations in the US. The calculated results from PVWatts® are an estimate of what you might actually experience, and are based on assumptions, uncertainties, and incomplete information about your particular PV system and location. PVWatts® was updated on May 5th, 2016. Please click on the “Feedback” button below to provide feedback to us.
Opensource-solar.org | DIY photovoltaics for all Hydrogen Analysis Resource Center SunShot Initiative High Penetration Solar Portal: New Methodology Helps Utilities More Accurately Evaluate Impacts of Distributed PV Distributed solar photovoltaic (PV) systems often must undergo an interconnection study process before they can be connected to the power grid. These system-impact studies can be both costly and time-consuming, and they often fall short when it comes to accurately assessing the potential grid impacts of differences in PV system size and location, as well as the inherent variability of PV plant output. A report recently released by the U.S. ” demonstrates how quasi-static time series (QSTS) simulation and high time-resolution data can be used to capture and assess the time-dependent aspects of power flow on a distribution circuit—which include the interaction between the daily changes in load and PV output and the effect on distribution control systems—while accounting for PV variability and differences in plant size and location. The report details application of the QSTS methodology to a set of sample distribution feeders with high PV deployment. “The big issue here is risk.
The Open PV Project - Breakeven Analysis This analysis relies on the System Advisor Model (SAM), developed by NREL in collaboration with Sandia National Laboratories (SNL) and the U.S. Department of Energy (DOE). SAM is a performance and economic model designed to facilitate decision making and analysis for renewable energy projects. SAM uses meteorological data, a PV performance model, and user-defined assumptions to simulate hourly PV generation data. In this analysis, a reference system was modeled using the following assumptions to generate PV performance data: We define the breakeven price of PV as the point at which the net present cost of the PV system equals the net present benefit realized to its owner. This analysis indicates areas where the interaction of electricity rates, PV production and household electricity demand produce an economically favorable environment for PV.
PVWatts Calculator Free Interactive Design Tools for Solar Power Energy Systems Green Lab Challenge | Argonne's Sustainability Initiative Taking 10 minutes to inspect your home for water leaks can lead to big financial savings. By Peter Lynch, Environmental Engineer The U.S. To give you a sense of how much you could be saving, it’s estimated that a leaking faucet can waste about 3,000 gallons of water per year, a dripping showerhead about 500 gallons per year and a running toilet about 200 gallons of water per day. The EPA provides a set of online tools to help homeowners identify common water leaks, as well as what they can do to fix the problems. The EPA’s WaterSense website also includes helpful tips on how to be more water efficient, including a calculator to help determine how much water and money can be saved by replacing old plumbing fixtures. Here are five easy tips to help reduce your monthly water bill: Some environmental benefits of saving water: Your everyday actions can make an impact, so make conscious decisions on how you use water.