Knowledge

Knowledge

With our knowledge and experience in a wide range of sustainable technologies, feasibility analyses, tenders and implementation processes, we support companies, energy cooperatives, municipalities and regional initiatives:

Sustainable technologies:

  • Energy saving:
    • Insulation
    • Climate control
    • LED lamps
    • Class A electrical equipment
  • Renewable generation:
    • Solar panels
    • Solar collectors
    • Wind turbines
  • Storage
    • Electricity storage
    • Heat storage
  • All-electric heating:
    • LW heat pumps
    • WW heat pumps
    • Soil heat exchangers

Feasibility analysis:

  • Calculation of the energy balance on an hourly basis over the calendar year:
    • Gas and electricity consumption
    • Renewable production
  • Investment and operational costs:
    • Activity based costing model
    • Markt benchmarks based on quotes of comparable projects
  • Historical rates and projections:
    • Delivery rates, energy tax and ODE
    • One-time and recurring network costs
  • Historical and current grants:
    • Exploitation: SDE++, SCE, …
    • Investments: ISDE, BOSA, …
  • P&L, balance sheet and cash flow projections:
    • Financial return
    • Payback period

Tendering & realisation:

  • Overview of suppliers
  • Production of quote request:
    • Description of existing situation
    • Specification of requirements
    • Conditions for the offer
    • Required information with quotation
    • Award criteria
  • Choice preparation of supplier selection:
    • Comparison of quotes
    • Score on award criteria
  • Construction supervision
  • Delivery inspection

Major route-dependent investments require adequate modeling of the total energy system, so that the energy measures can be evaluated in conjunction.

The figure below classifies the most common energy measures according to the size and route-dependence of the investment (as shown in the rows of the table); and the type of investment based on the trias energetica (as shown in the columns of the table). Limited investments (‘low-hanging fruit’) and route-independent (‘no regret’) investments can be based on separate business cases are taken.

As ETG we like to keep the analysis as simple as possible (but no simpler than that). For the evaluation of investments in the first category of limited investments, ETG provides a simple (‘back of the envelope’) calculation. Investments in the other two categories are calculated using the LEAP model, whereby modeling of the 0-scenario based on the current energy system is only necessary for the third category of investments, the route-dependent investments. The current natural gas and electricity consumption is taken as the starting point for the route-independent investments of the second category.