Renewable Energy (Sunamp Heat Batteries)

Transcription

1 Renewable Energy (Sunamp Heat Batteries)

2 Sunamp: Focussed on Heat Storage Electricity 17.5% Heat 46% Transport 27.5% Others 9% World energy consumption Heating without global warming, IEA, Electrical storage: Over invested Overcrowded High entry barriers Materials questions Heat storage: Has not changed in centuries Ripe for improvement More heat storage needed Low cost, sustainable materials

3 Heat Storage for Intermittency Need to time-shift from when energy is available to when it is needed CHP Solar Thermal Solar PV Heat Pumps Biomass Waste Heat Off-peak Elec... Intermittent input energy Heat storage time Controlled output energy hot water heating time Need for something smaller and better than hot water tank

4 Example Product: SunampPV Hot water made using PV solar electricity energy. Excess production is stored in heat battery inside SunampPV. Excess PV electricity production diverted and stored in heat battery Cold mains water High flow rate hot water instantaneously produced 850 homes EastHeat trial: Up to 75% of annual hot water FREE

5 Sunamp Technology Very energy dense (around 4 times hot water) Non-toxic, non-flammable Phase Change Materials (PCMs) Store latent heat when melting & crystallizing Custom developed with University of Edinburgh Same basis as re-useable handwarmers, but packaged as a high power SUNAMP HEAT BATTERY Product range with multiple capacities & functions Integrate with existing electrical, heating, hot water Ideal for retrofit upgrades to use local renewable heat and electricity High storage capacity in a small space deals with intermittency (ENERGY DENSE)

6 Core Development Sunamp Heat Battery Sunamp developed world s first volume-production heat battery (made in Sunamp own factory). Sunamp Heat Battery is core Sunamp product: Modular change shape and capacity Scalable adapt to different installations High power store or discharge heat energy at >35 kw Energy dense 4x better than hot water, oil or glycol Advanced, Stable, Safe No Degradation 22,000 cycle test completed Based on Phase Change Material (PCM) developed in R&D collaboration with University of Edinburgh. Patents for materials, heat battery and applications granted in U.K. and China. Pending in other countries. Collaboration Partners: Modular 2.25 kwh 35 kw PCM 58 C 130 Wh/L PCM 5-80 C

7 Sunamp Heat Batteries Temperature / C PCM - melting Water behaviour Time / min 100g sample of phase change material cycled between 70 C and 15 C. This phase change materials changes phase at 58 C Temperature / C PCM - freezing Water behaviour Time / min We scale this to PCM heat batteries with 21.5 kg of material that store about 2.5 kwh each

8 Sunamp Heat Batteries Energy content of water and PCM58 from 25 C PCM58 DSC* data Energy / WhL-1 water *Differential Scanning Calorimeter Temperature / C

9 Sunamp PV Turns excess energy from on-building PV into heat Stores it for later use (without a hot water tank) Re-delivers it as high flow rate (12-14 lpm) hot water ON DEMAND Delivers 100 litres from a unit 530 x 300 x 700 mm Works with a combi boiler to ensure continuous delivery Designed to save /year for 1500 investment Accelerates PV payback Works with self-consumption units (e.g. Optimerssion)

10 Core Development Phase Change Materials Developed different phase change materials (melt & freeze temperatures) to maximise performance systems. Heating and cooling energy storage. Cold storage Air conditioning -5 4 Battery Thermal Protection Cabin HVAC Engine and oil warm-up T, C Sunamp PCMs are non-toxic, non-flammable materials. Patented by Sunamp. Collaboration Partners:

11 Wide range of storage scales Scalability through modular, cellular architecture. Variety of heat sources incl: Electricity Heat Pump Boiler District heating Solar (PV or Thermal) 1 cell 2 cells 18 cells Heating: Very fast radiator warm-up Time-shifting Provides hot water: ½ to ¼ size of equivalent cylinders High flow rates 2.5 kwh 5 kwh 40 kwh Cooling applications in development

12 Sunamp Stack + Air Source Heat Pump Time-shifting the electrical energy used by heat pumps Trialed by Berwickshire Housing Association (DECC funded) 35 kwh Sunamp Stack heat battery allowed off-peak electricity (up to 50% saving) and heat pumping (up to 3x efficiency) to work together Actual results showed 45% - 60% saving in annual heating bills even compared with gas Central Heating Heat Pump Sunamp Stack Hot Water

13 Local Energy Challenge Fund 4M Project funded by Scottish Government Alongside 5 others, totalling ~ 22M Highly competitive (114 applicants) Round 2 now open! Solar PV Mains Gas/ Electricity Heat Pumps Micro CHP Generator Heat Batteries /year/household savings Innovative combinations of proven mchp, Heat Pump & PV with innovative advanced Heat Batteries to balance time of availability against time of demand. Objective: Significant reduction in tenant fuel poverty for our Housing Association partners

14 LECF Sunamp Solution Phase 1 learning: No one single solution fits all buildings. Using a pick one from each of column A, B, C approach to maximise benefits delivered. A B C mchp B Resistance Heat C SunampPV PV Off-Peak Tariffs Heat Pump SunampStack

15 SunampCube Deal with electrical network constraint/curtailment of intermittent renewables Avoid costly upgrades by preventing power flows through divert to heat Excess electrical production converted to heat and stored inverter Electricity Network District Heat Heat pump or resistance heat SunampCube 150+ kwh OR 3-5 MWh

16 Preview of larger scales Large cell ISO half-height container In development. Projected availability Q4 2016/Q Significant project pipeline (static and mobile applications). 75 kwh 1.5 MWh

17 Vehicle Applications Transmission oil heating Application Maintain temperature during light load and stop-start Rapid engine warm-up after cold start: cylinder head, block, oil Intake air heating Rapid catalyst light-off after coldstart Heat DEF to prevent freezing Non-Flammable Non-Toxic Size & Shape Flexible Highly efficient Re-uses waste heat USP Lighter Smaller High Energy Density High Thermal Power Competitor Thermal Engine Covers Mercedes Flasks Prius Bosch Block Heaters Comfort Enhancing Much lower cost than LiIon batteries Activate Heat on Demand Range Extending Lossless Storage Instant cabin heat / windscreen demisting Fuel Cell cold-start EV range consistency EV traction battery thermal conditioning Market Already proven in >750 installations in built environment cells built. Ready to transition to Automotive.

18 Most farms are off the gas grid. They rely on electricity, LPG or oil and fuel prices inevitably go up over the long term. Many farmers have invested in solar panels, wind turbines, biomass and AD. Ideally the energy generated would perfectly match the on-farm usage: however the problem is that energy generation is often not at the right time for usage; or there is too much generation and the excess just has to be exported back to the electricity grid, sometimes without adequate recompense. So it makes economic sense to store this energy to use later on the farm, when and where it is needed. This is where Sunamp Heat Batteries excel. Key Features cycle life proven with no degradation Unlimited cycle life projected 10 year manufacturers warranty 10 year capacity warranty In volume production Proven in hundreds of homes of all sizes Compact packaging Rapidly customized size, shape, capacity Modular energy & power scales up Excellent energy density Exceptional power density Best safety non-flammable, non-toxic No maintenance required Case Study Hundreds of farms have small wind turbines or PV solar arrays on farm buildings. As well as ROCs or Feed-in Tarrif paid for generating clean electricity, they supply some of the on-farm energy. Even so a lot of electricity is exported, for low or no recompense. What if there was a way to use more of that energy on the farm? There is now. SunampStack is designed as a large-capacity (yet very compact sized) version of Sunamp s proven SunampPV domestic product. SunampStack can be easily configured to save and store excess PV or Windgenerated electricity (which would otherwise have flowed back to the grid). The energy is stored as heat, and is then available for hot water, process heat or space heating. Imagine covering a very large fraction of the heating bill for your farm buildings with electricity the government has already paid you for! Adding an Air-Source Heat Pump package to SunampStack increases the savings further and means you can take advantage of the Renewable Heat Incentive to amortise costs. For example a 275 square metre farmhouse fitted with a single SunampStack the size of a fridge-freezer (sited neatly in the boot room) along with a Daikin Altherma HT heat pump, provides 100% of heat and hot water for a family of four year-round. (It even runs perfectly at -20 C.) The savings are amazing the annual bill is half what it would be using mains gas! Edinburgh Headquarters Sunamp Ltd 1 Satellite Park Macmerry EH33 1RY United Kingdom UK: +44 (0) Zurich Office Sunamp Switzerland Gmbh glatec, Technologiezentrum an der Empa Überlandstrasse Dübendorf Switzerland Zurich: +41 (0) 799 Find us on facebook info@sunamp.co.uk

19 Renewable Energy Team tel: