Rolf Crook's research while affiliated with University of Leeds and other places

... The capability of performing high-resolution discretisation on a roof facet (chosen at 0.5 m in application), also provides the opportunity to improve PV power generation modelling and its interaction with the grid, for instance using statistically accurate, synthetic 1-min time series of solar irradiance [4,[61][62][63][64]. This is potentially one of the most valuable implementations, considering the sensitiveness of rural grids outlined in the motivation (Section 2.3) of this study [9][10][11][12]. ...

... A clearness index of 0.01 intervals and discrete-time Markov chains was then applied to downscale the GHI from 1 h to 1 min. The seasonality, as well as the diurnal and pressure influences on the cloud cover, were taken into account by Bright et al. [41] and on the basis of this, further used to synthesize a 1 min global irradiance from hourly weather data such as pressure, wind speed, and cloud amount to estimate the amount of cloud cover and the cloud height [42,43]. The authors later extended the method to the spatial dimension, resulting in a spatially-decorrelated solar irradiance generator [44]. ...

... The seasonality, as well as the diurnal and pressure influences on the cloud cover, were taken into account by Bright et al. [41] and on the basis of this, further used to synthesize a 1 min global irradiance from hourly weather data such as pressure, wind speed, and cloud amount to estimate the amount of cloud cover and the cloud height [42,43]. The authors later extended the method to the spatial dimension, resulting in a spatially-decorrelated solar irradiance generator [44]. Bright [45] evaluated several GHI training datasets to generate a more accurate systematic Markov transition matrix and an arbitrary number of states for the Markov transition matrix on clear-sky index data [46]. ...

... Murphy, 2009 investigated the effect of stratospheric aerosols on CSP production concluding that an enhancement of the aerosol layer would lead to a reduction in 65 the efficiency of CSP systems by 4 to 10 % for each 1 % reduction in total sunlight reaching the earth (Murphy, 2009). More recently, Smith et al., 2017 studied PV and CSP potential under stratospheric sulphate injections and found an overall reduction in CSP output of 4.7 to 5.9% on land relative to a scenario without geoengineering and a reduction in PV potential of 1 to 3 % over land depending on the model and type of PV technology (Smith et al., 2017). ...

... Hence, GHI is more predictable for the long-term horizon due to its annual pattern and the diurnal cycle (Reikard and Hansen, 2019). Cloud coverage, on the other hand, becomes a predominantly attenuating factor of GHI in the very short-term (up to 3 h ahead), and its dynamic behavior is difficult to predict (Smith et al., 2017). These volatilities disturb energy production from the PV system to the electricity grid. ...

... Recently, most of the researchers have focused on the progress, development, and design of FPCs. The structure of the collector is crucial factor for a SWH system [76]. The performance of FPC has been studied under steady-state and quasi-dynamic test conditions [10]. ...

... However, a number of studies have also found no relationship between consumers' environmental concerns and their willingness to adopt solar PV [40]. For instance, Opiyo [70] conducted a study in the context of a developing country, where people often adopt alternative solutions when electricity from the grid is not available. In these situations, factors such as the availability of cheap and undisrupted electricity often influence decision-making, while environmental considerations may be less important [29]. ...

... The first main category is the physical model, which uses the radiative transfer equations [8][9][10]. These equations rely on complex analytical solutions and therefore require a very specific mathematical tool to simultaneously solve an extensive data set. ...

... Efficiency of PV cell decreases by 5% with every 10°C gain in temperature [6]. Solar cell temperature can be reduced by either modifying the system design [11] or involving cooling techniques. PCM attracted the researcher's attention because it carries away the surplus heat from the PV cell or panel and store it as latent energy, which can be used in absence of sun light. ...

... Vacuum lamination using Ethylene vinyl acetate (EVA) and glass is a well established method for assembling solar panels, however, EVA discolours over time and this technique is expensive and not available to reproduce in remote or rural areas [1][2][3][4][5]. Generally PV panels are made of glass backsheets and aluminium frames. ...