{"id":2535,"date":"2009-07-20T00:00:58","date_gmt":"2009-07-20T05:00:58","guid":{"rendered":"http:\/\/www.olino.org\/us\/?p=2535"},"modified":"2009-07-04T14:38:53","modified_gmt":"2009-07-04T19:38:53","slug":"existing-home-in-the-netherlands-converted-to-zero-energy","status":"publish","type":"post","link":"https:\/\/olino.org\/blog\/us\/articles\/2009\/07\/20\/existing-home-in-the-netherlands-converted-to-zero-energy\/","title":{"rendered":"Existing home in the Netherlands, converted to zero energy"},"content":{"rendered":"

\"Zero<\/a>As far as I know, this is the first existing home in the Netherlands, which is converted to a “zero energy” home. The electricity generated by solar panels and the heating is done by a heat pump, total net costs of subsidies: \u20ac 15,000. <\/p>\n

<\/p>\n

Solar energy<\/h3>\n

The electricity is generated by (15.5 kWp) solar panels (Kyocera) and converted to 230V AC through inverters (SMA). Half of the panels face east and the other half face west. The annual average yield is about 10,500 kWh. Summers electricity surplus is supplied to the grid, and in winter the deficit is supplied by the grid. It works great. You don\u2019t even notice. It is now regulated, that the first 5000 kWh per year can be exchanged with the grid for free. This means that for the first 5000 kWh we supply to the grid, we cash the same amount as what we have to pay per kWh (including network costs, environmental tax and federal tax!). We have enough electricity in one year for normal consumption ( light, washing, TV, computer, etc.). and for the heating + hot water. Oh yes, and cooking is done with an induction plate. <\/p>\n

\"15,5<\/a>
\n15,5 kWp Solar Panels<\/em><\/p>\n

No alternative lifestyle<\/h3>\n

We don\u2019t live an “alternative” lifestyle with all sorts of restrictions, but do everything most of us do. Our normal annual consumption for TV\u2019s, fridge (2x), freezer, washing machine, (heat pump) dryer, dishwasher, computers, etc, etc. is about 5000 kWh, which is even slightly above the Dutch average annual consumption of 3600 kWh. Of course we paid a little attention to the equipment we purchased (energy-consumption). Like a freezer with A++ energy label (=Dutch rating). Heat pump clothes dryer etc. <\/p>\n

Heating<\/h3>\n

Heating + hot water are provided by an air \/ water heat pump (Mitsubishi Zubadan). The energy consumption for the heat pump for heating and hot water is about 5500 kWh \/ year (was about 2200 m3 gas \/ year). Of course, a heat pump only operates efficiently if the heat can be supplied at a low temperature level. That means for example (very) large baseboard heaters or radiant floor heating or wall heating. Fortunately, 22 years ago during construction of our house we had already taken into account, the possible application of a heat pump or solar energy. So our house was already fully equipped with radiant floor heating. The water supply temperature to the floor is about 35\u00b0C at -10\u00b0C outside temperature. So, great for a heat pump. The PV installation is now 5 years old and bought under the old (good!) grant scheme. The heat pump is installed (again with \u20ac 1000, – grant).<\/p>\n

\"The<\/a>
\nThe Air\/Water Heatpump located next to the House<\/em><\/p>\n

The design of the installations was done by myself. I also took care of the installation. Only the cooling section of the heatpump was installed by a certified company (obligation because of R410A).<\/p>\n

\"The<\/a>
\nThe Air\/Water Heatpump in detail<\/em><\/p>\n

Investment<\/h3>\n

The total cost of the PV installation + heat pump is around \u20ac 15,000. These are the costs after deduction of the grants. It is easy to see, that with former monthly gas and electricity bills of approximately \u20ac 210, sustainable in this way is not “expensive”, but quickly payed back. <\/p>\n","protected":false},"excerpt":{"rendered":"

As far as I know, this is the first existing home in the Netherlands, which is converted to a “zero energy” home. The electricity generated by solar panels and the heating is done by a heat pump, total net costs of subsidies: \u20ac 15,000.<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[4,15],"tags":[],"_links":{"self":[{"href":"https:\/\/olino.org\/blog\/us\/wp-json\/wp\/v2\/posts\/2535"}],"collection":[{"href":"https:\/\/olino.org\/blog\/us\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/olino.org\/blog\/us\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/olino.org\/blog\/us\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/olino.org\/blog\/us\/wp-json\/wp\/v2\/comments?post=2535"}],"version-history":[{"count":6,"href":"https:\/\/olino.org\/blog\/us\/wp-json\/wp\/v2\/posts\/2535\/revisions"}],"predecessor-version":[{"id":2538,"href":"https:\/\/olino.org\/blog\/us\/wp-json\/wp\/v2\/posts\/2535\/revisions\/2538"}],"wp:attachment":[{"href":"https:\/\/olino.org\/blog\/us\/wp-json\/wp\/v2\/media?parent=2535"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/olino.org\/blog\/us\/wp-json\/wp\/v2\/categories?post=2535"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/olino.org\/blog\/us\/wp-json\/wp\/v2\/tags?post=2535"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}