ASPIRE: Arctic solar photovoltaics: innovation for renewable energy

太阳能光伏能源技术在全球范围内都是成熟和有效的，特别是在太阳能资源丰富的地区，主要是在固定倾斜的单面硅光伏电池板安装中。在这些地区之外，商业采用率随着可用的太阳能资源的减少而下降。然而，北极地区的光伏发电有一个理由：(1)由于夏季白天非常长，太阳能资源与较低纬度地区相似；(2)硅光伏发电在温度较低时效率更高；(3)柴油替代是一种经济和环境优势。受到极大关注的颠覆性技术生态系统是硅双面光伏电池板。双面面板在正面和背面都能接受阳光，但只比单面面板略贵一点。这些太阳能板可以直接从太阳、从天空、从云端、从附近的建筑立面或明亮的积雪地面收集能量。增加双轴跟踪器意味着电池板可以连续指向最佳方向，以在整个地平线周围产生最大太阳能功率。**传统的硅太阳能电池正在接近其实际性能极限，~17-18%。采用金字塔表面纹理和非晶|晶体异质结的新型先进双表面硅电池有望实现超过21%的效率，并将在跟踪器上进行设计、制造和现场测试。将建立用于设计支持和系统产量预测的综合数值模型。ASPIRE的目标是使用先进的跟踪式双面电池，将北极地区固定倾斜单面电池的产量提高一倍。*这项提案是基于渥太华SUNLAB的Karin Hinzer博士、Henry Schriemer博士和Joan Haysom博士、亚利桑那州立大学的Mariana Bertoni博士和育空学院的Michael Ross博士之间的长期合作。该项目将与加拿大北极高地研究站(CHARS)、摩根太阳能公司(TRACKER)和斯派特拉菲公司(metrology).**********************************合作。

Solar photovoltaic energy technology is globally established and effective, especially in high solar resource regions, largely in fixed-tilt monofacial silicon photovoltaic panel installations. Outside these regions commercial adoption rates decline following the available solar resource. However, there is a case for photovoltaics in the Arctic: (1) the solar resource is similar to lower latitudes due to very long summer days; (2) silicon photovoltaics are more efficient in cooler temperatures; and (3) displacement of diesel fuel is an economic and environmental advantage. A disruptive technology ecosystem receiving much attention is silicon bifacial photovoltaic panels. Bifacial panels receive sunlight on both front and rear faces, but are only slightly more expensive than monofacial panels. These panels can harvest energy arriving direct from the sun, and from the sky and from cloud edges and from nearby building facades or bright snow-covered ground. Adding dual-axis trackers means the panels can be pointed continuously into the best orientation to generate maximum solar power, around the entire horizon. **Conventional silicon solar cells are nearing their practicable performance limit, ~17-18%. Novel advanced bifacial silicon cells using pyramidal surface texturing and amorphous|crystalline heterojunctions hold good promise for efficiencies beyond 21% and will be designed, fabricated, and field tested on trackers. Comprehensive numerical models for design support and system yield forecasting will be established. The goal of ASPIRE is to double the yield of fixed-tilt monofacial in the Arctic using advanced tracked bifacial cells. **This proposal is based on long-standing collaborations among Dr. Karin Hinzer, Dr. Henry Schriemer, and Dr. Joan Haysom of the uOttawa SUNLAB; Dr. Mariana Bertoni of Arizona State University; and Dr. Michael Ross of Yukon College. The project will partner with the Canadian High Arctic Research Station (CHARS), Morgan Solar Inc. (trackers) and Spectrafy Inc. (metrology).**********************************