October 2011:
AQUARIUS - Program modified to enable execution under the Windows 7 operating system.
EPSIM - addition of automatic power system expansion plan generation facility. The user can now generate expansion plans covering forecast electricity demands with defined capacity and 'firm' energy reserve percentages in accordance with alternative development strategies, including Cost per MW Installed and Cost per MWh Installed. The generated plans can take into account defined mutual exclusivity and dependency constraints e.g. prior or coincident commissioning of generation plant and transmission line additions.
September 2011:
February 2011: AQUARIUS - Addition of Weibull Distribution option for generating representative daily and hourly wind speeds when modelling wind farms.
November 2010: World Bank funded project 'Provision of Consultancy Services for Hydro/Thermal Dispatch System Upgrade' completed for Tanzania Electric Supply Company Ltd. (TANESCO).
July 2010: Contract signed with Tanzania Electric Supply Company Ltd. (TANESCO) for World Bank funded 'Provision of Consultancy Services for Hydro/Thermal Power Dispatch System Upgrade'.
June 2009: Program AQUARIUS installed in the offices of Tanzania Electric Supply Company Ltd.(TANESCO), together with models for planning long and short term operation of Tanzanian hydro-thermal system. Training given to TANESCO staff in model construction and program applications and usage.
Nov 2008: Contract signed with Tanzania Electric Supply Company Ltd. (TANESCO) for the replacement of Program SYSIM with Program AQUARIUS and Updating of Program SYRAP.
Oct 2008: AQUARIUS - Automated creation of MIMIC diagrams based on system schematics.
Sep 2008: AQUARIUS - Models of existing and potential () Tanzanian hydro-thermal power generation systems completed. 5(10) reservoirs, 21(34) river reaches, 10(16) flow points, 3 river abstractions, 4 supply aqueducts, 6(11) hydro plants, 14 thermal plants, 4 water demand areas and 1 electrcity demand area.
Oct 2007: AQUARIUS - Model of River Dee system (North Wales) completed. 3 reservoirs, 55 river reaches, 26 flow points, 8 river abstractions, 21 supply aqueducts, 6 transfer aqueducts, 3 treatment works, 11 water demands, 3 drought conditions.
Jul 2007: AQUARIUS - Facility added for 'time of travel' through River Reaches, based on up to 7 daily routing coefficients.
Jun 2007: AQUARIUS - Facility added for 7 day 'real time' simulation. Inflow forecasts can be set according to specified 'probability of exceedence' of historic time series values.
Apr 2007: AQUARIUS - Model of integrated Sri Lankan power generation and irrigation supply system completed. 17 reservoirs, 57 river reaches, 30 flow points, 11 river abstractions, 15 supply aqueducts, 13 transfer aqueducts, 13 hydro plants, 7 thermal plants and 15 water (irrigation) demand areas.
Jan 2007: AQUARIUS - Facility added to randomly generate daily flows based on calendar monthly Normal (Gaussian) or Pearson Type III probability distributions. To simulate operation of hydro plant at sites without coincident streamflow records.
Dec 2006: AQUARIUS - Program demonstrated at International Symposium on Water Resources & Renewable Energy Development in Asia, Bangkok 30/11/2006 & 1/12/2006.
Nov 2006: AQUARIUS - Program installed in offices of United Utilities Water, Warrington, UK for evaluation.
Jan 2006: AQUARIUS - Model of United Utility Water's Integrated Water Resource/Supply system constructed. 19 reservoirs, 44 river reaches, 29 flow points, 13 river abstractions, 11 water sources, 19 treatment works, 14 pumping stations, 36 supply aqueducts, 74 transfer aqueducts, 16 junction points and 23 water demand areas.
Oct 2005: AQUARIUS - Modelling of Wind Plants included with random number generation of daily and compatible hourly (load block) wind speeds and defined efficiency function conversion to power output. Enables accurate assessment of wind power values within hydro-thermal power systems.
Aug 2005: AQUARIUS - Optimisation of long-term weekly or monthly stored water values using Stochastic Dynamic Programming Algorithm.