Stirling DK Introduction. March 2012

Transcription

1 Stirling DK Introduction March 2012

2 Introduction to Stirling DK Stirling DK (SDK) is a provider of Stirling engines and integrated combined heat and power (CHP) solutions based on Stirling engines fuelled by wood chips, biogas from anaerobic digestion, other low-grade biological fuel sources In addition to the Stirling engine technology, the company has also developed its own proprietary technology to utilise biomass in an updraft gasification and combustion system, a technology ideally suited for the Stirling engine

3 Stirling DK Value Proposition Central Value Proposition Stirling DK s technology enables the conversion of low-grade fuel into high-value, clean heat and power in small-scale applications* *35-500kW e / 140-2,000 kw th 3

4 Summary of Stirling DK Technology To sum up, SDK s onsite renewable energy generation technology has several distinct advantages: Extremely low dust emission levels not achievable by alternative biomass technologies; Ability to use a range of low-grade and low-cost fuel types, such as fresh wood chips or low-methane biogas, not suitable for internal combustion engines; High plant efficiency levels of approx. 90%

5 Technology Description Conversion of Solid, Liquid, or Gaseous Low-grade Fuel into Electricity and Heat GRID CONNECTED ELECTRICITY ONSITE GENERATION SOLID FUELS WOOD CHIPS WASTEWOOD OTHER DIRECT COMBUSTION UPDRAFT GASIFIER COMBUSTION CHAMBER STIRLING ENGINE DISTRIBUTED GENERATION WATERBORNE HEATING LIQUID FUELS PYROLYSIS OIL OTHER GASEOUS FUELS LANDFILL GAS SEWAGE GAS HEATING COOLING DESALINATION

6 Technology Package Three Product Configurations Serving Differentiated Market Needs Stand-alone Engine Stirling engine Interface to boiler Control system Engine with CoC Stirling engine Combustion chamber Burner system Control system CHP Plant Engine with CoC Updraft Gasifier Plant Control system Interfaces to end user OEM delivery to boiler manufacturers OEM delivery to producers of gasifiers/biogas/lfg systems/pyrolysis oil Plants constructed by distributors/integrators

7 Market Segmentation Prioritization of Markets Primary Focus on Biomass CHP in Europe Market Solution Substituting Estimated annual market size Europe Global Primary Biomass CHP in Europe for large buildings or district heating networks Boilers for heat only Gas CHP systems 5bn > 10bn Secondary CHP from gaseous or liquid fuels (e.g. AD or pyrolysis oil based on engine with combustion chamber Flaring Boilers for heat only Internal combustion engines with pretreatment of fuel > 1bn > 10bn Tertiary Power-only generation in rural/remote areas and developing countries I/C engines with pretreatment of fuel / diesel gensets -- > 20bn

8 Integrated Updraft Gasification Plants 1: Process flow of an updraft gasification plant

9 Existing installations

10 Target vs. Operating Performance Technical Specifications Target specification DTU reference plant actual Fuel type Wood chips Wood chips Fuel input 200kW 205kW Heat output 140kW th 145kW th Power output 35kW e 30kW e Electrical efficiency 17.5% 15% Overall plant efficiency 88% 85% Dust level CO emissions 1 NO X emissions 2 Total organic compound (TOC) emissions < 5 mg/nm³ < 150 mg/nm³ < 200 mg/nm³ < 10 mg/nm³ Fuel for Updraft Gasification The SDK updraft gasification CHP plants use moist, fresh wood chips as fuel, in contrast with conventional gasification plants, which require dried wood chips. SDK updraft gasification plants specify the use of ÖNORM M7 133, G50, Moisture content >35% (W40 or W50) from the Austrian Standards Institute. A 1-engine plant uses roughly 70 kgs of wood chips an hour (at a moisture content of 42%), corresponding to roughly 490 tonnes for 7,000 hours of operation

11 Engine with Combustion Chamber for Gaseous and Liquid Fuels

12 Existing Installation SDK currently has one operational installation involving a biogas-fuelled engine with combustion chamber configuration. This installation is in operation at a wastewater treatment plant in Germany managed by Westsächsische Umweltdienste AG (WUDAG), a company specialising in anaerobic digestion from wastewater treatment plants. Customer WUDAG Location Niederfrohna, Germany Energy output 35kW e + 140kW th Fuel type Methane from anaerobic digestion Comment Direct combustion of biogas Customer specialises in anaerobic digestion from wastewater treatment plants Plant in operation since mid-2010 The Stirling DK solution benefits from the following key commercial advantages in comparison to conventional internal combustion based technologies for low-grade liquid or gaseous fuel applications: Emissions and noise levels from internal combustion engines are significantly higher Internal combustion based solutions require capital intensive and energy consuming pretreatment processes and involve frequent servicing

13 Customer Economics Income from investment into an SDK plant comes from two main sources; 1. Sale of heat and electricity to local networks or national grids and/or own consumption of heat and electricity, substituting alternate energy sourcing (cost avoidance) 2. Local or national policies promoting the use of onsite generation, combined heat and power generation or energy generation from renewable energy resources, e.g. feed-in tariffs for electricity

14 Example income for a 4-engine plant Type of Income Germany (2012 prices) UK (2012 prices) Value of Heat: - 187, ,000 - Annual Per kwh Value of Power: - Annual - Per kwh Heat Subsidy: - Annual - Per kwh Power Subsidy: - Annual - Per kwh N/A (Power sold to grid via Feed-In Tariff) N/A - 182, , , , Total Annual Income - 369, ,800 The table below gives the returns to investment for the owner of a 4-engine updraft gasification CHP plant installed in 2011: Return on Investment Germany UK Simple Payback Period < 10 years < 9 years Post-tax IRR 9% 11% LCOE without subsidies (Retail Electricity Price) ( 128.8) ( 108.2)

15 Customer Case Studies Updraft Gasifier Plants Sold to High-profile Customers in the UK and Germany Customer Description / opportunity High-profile energy centre at Waitrose supermarket in the Isle of Wight, UK Tri-generation plant providing power, heating and cooling through absorption chiller technology 4-engine updraft gasifier plant (140kW e /560kW th ) Commissioning: Q Sale via MITIE (energy delivery contract with Waitrose) Innovative project represents substantial opportunity for further orders from Waitrose/MITIE evidenced by recent follow-up order for 4-engine plant at Waitrose store at Bracknell (Waitrose HQ) Municipal spa/wellness centre in Tabarz, Germany 4-engine updraft gasifier plant (140kW e /560kW th ) Commissioning: October-November 2011 Will provide heat and power to spa Sale via Siemens Building Technologies Division, providing technical quality guarantee for project

16 Stirling DK Market Model

17 Stirling DK Market Model Potential Partners in the Energy Services Market Consulting Firms CONSULTANCIES SPECIALIZING IN ENERGY SERVICES/EFFICIENCY FACILITIES MANAGEMENT COMPANIES OFFER ENERGY SERVICE CONTRACTS ALONGSIDE OTHER FACILITY MANAGEMENT FM Companies ENERGY SERVICES Certification Specialists CERTIFICATION SPECIALISTS, SUCH AS BUREAU VERITAS, HAVE A STAKE IN THE ENERGY EFFICIENCY MARKET MOST UTILITIES NOW OFFER ENERGY SERVICES IN THEIR PRODUCT PORTFOLIO Energy Utilities ESCO s Integrators / Equipment Manufacturers SOME EQUIPMENT MANUFACTURERS OFFER ENERGY SERVICE CONTRACTS BASED AROUND THEIR PRODUCTS SEVERAL LARGE ESCO S ARE ACTIVE IN THE MARKET